29–31 March 2012 - Geological Society of America
29–31 March 2012 - Geological Society of America
29–31 March 2012 - Geological Society of America
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<strong>2012</strong> Program<br />
CORDILLERAN<br />
GSA Section Meeting<br />
<strong>29–31</strong> <strong>March</strong> <strong>2012</strong><br />
Vol. 44, No. 3<br />
Misión Hotel Juriquilla<br />
Querétaro, México<br />
Spectacular skies over Querétaro, México.<br />
Photo by Michelangelo Martini.
108th Annual Meeting<br />
Cordilleran Section <strong>of</strong> The <strong>Geological</strong> <strong>Society</strong> <strong>of</strong> <strong>America</strong><br />
28 <strong>2012</strong> GSA Abstracts with Programs<br />
Hosted by<br />
Centro de Geociencias and Instituto de Geología<br />
Universidad Nacional Autónoma de México<br />
Cordilleran Section GSA Officers for <strong>2012</strong><br />
Chair: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calvin G . Barnes<br />
Past Chair: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Luca Ferrari<br />
Vice Chair: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jonathan S . Miller<br />
Secretary-Treasurer: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rodney V . Metcalf<br />
Local Committee for the <strong>2012</strong> Meeting<br />
General Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Luca Ferrari<br />
General Co-Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Teresa Orozco Esquivel<br />
Technical Program Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dante Morán Zenteno<br />
Field Trips Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jorge Aranda Gómez<br />
Student Volunteers Coordinator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mariano Cerca Martínez<br />
Exhibits Chair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Claudia Mendoza<br />
Sponsorships/Donations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Elena Centeno García<br />
50% Total Recovered Fiber<br />
10% Post-Consumer
Welcome to the 108 th annual meeting <strong>of</strong> the Cordilleran<br />
Section <strong>of</strong> The <strong>Geological</strong> <strong>Society</strong> <strong>of</strong> <strong>America</strong>, hosted by<br />
Centro de Geociencias and Instituto de Geología <strong>of</strong> the<br />
Universidad Nacional Autónoma de México . The meeting<br />
theme “The Southern Cordillera and Beyond” emphasizes the<br />
fact that geology does not stop at the U .S . border . Canada,<br />
the United States, and Mexico share the same tectonic plate<br />
and also face similar environmental and resource problems .<br />
In an effort to promote a more active communication among<br />
geologists from the three countries, the 108th meeting <strong>of</strong> the<br />
GSA Cordilleran Section is being held in Querétaro, central<br />
Mexico, at Hotel Misión Juriquilla .<br />
Querétaro lies at the crossroads <strong>of</strong> three main geologic<br />
provinces: the Neogene Trans-Mexican Volcanic Belt, the<br />
mid-Tertiary Sierra Madre Occidental silicic large igneous<br />
province, and the Cretaceous-Paleocene Sierra Madre<br />
Oriental fold-thrust belt . The urban area occupies a continental<br />
basin bounded by the intersection <strong>of</strong> two late Tertiary<br />
extensional fault systems affecting late Miocene and early<br />
Pliocene volcanic rocks . Classic fossils sites with Hemphillian<br />
to Blancan vertebrate fauna are located only 25-30 miles to<br />
the north .<br />
Mexico is a key region for understanding the geologic<br />
evolution <strong>of</strong> North <strong>America</strong> as well as an important tectonic<br />
element that interacted with South <strong>America</strong> and the<br />
Caribbean . The meeting will focus on the advances in the<br />
geology <strong>of</strong> the Southern Cordillera, including such topics as<br />
silicic magmatism, rifting <strong>of</strong> the Gulf <strong>of</strong> California and Gulf<br />
<strong>of</strong> Mexico, the Laramide fold and thrust belt, the Trans-<br />
Mexican Volcanic Belt and the Middle <strong>America</strong> subduction<br />
zone, and Caribbean interaction with North and South<br />
<strong>America</strong> . The meeting will also host a symposium on the<br />
Amalgamation and Breakup <strong>of</strong> Pangea (IGCP Project 597),<br />
along with an array <strong>of</strong> applied theme sessions on water management,<br />
soils subsidence and fracturing, ore geology, and<br />
geothermics .<br />
Venue<br />
Located in the geographic center <strong>of</strong> Mexico, Querétaro<br />
is a modern industrial city, built around a beautiful colonial<br />
center . The meeting is being held at Hotel Misión Juriquilla,<br />
which occupies the main building <strong>of</strong> an 18 th century hacienda<br />
and includes large patios, two restaurants, a pool, and<br />
a spa . The hotel is located just 15 km away from the historic<br />
downtown, which was declared a World Heritage Site by<br />
UNESCO, for the exceptional examples <strong>of</strong> baroque architecture<br />
and for having retained the geometric street plan <strong>of</strong> the<br />
Spanish conquerors side by side with the twisting alleys <strong>of</strong> the<br />
Indian quarters .<br />
General Information<br />
Transportation and Directions<br />
Querétaro is located 140 miles northwest <strong>of</strong> Mexico City .<br />
The Querétaro International Airport has direct flights from<br />
Houston (Continental), Dallas (<strong>America</strong>n), and Monterrey,<br />
Mexico (AeroMexico) . Taxi fare from the Querétaro airport<br />
to Hotel Misión Juriquilla is ~US$25 . A direct shuttle bus<br />
connects Mexico City International Airport to Querétaro’s<br />
bus station for ~US$22 (see primeraplus .com .mx) . Hotel<br />
Misión Juriquilla is located 15 km north <strong>of</strong> Querétaro city, <strong>of</strong>f<br />
the Juriquilla exit <strong>of</strong> Highway 57 . Taxi fare from Queretaro<br />
downtown to Hotel Misión Juriquilla is ~$US 8 .<br />
Free bus transport between Querétaro downtown and<br />
Hotel Misión Juriquilla is provided during the meeting . In<br />
downtown, bus departs from the Alameda (at the corner<br />
<strong>of</strong> Corregidora and Constituyentes) following a route along<br />
Constituyentes Av ., and 5 de Febrero Av . (see map) . If you<br />
plan to use this bus transport, please contact Teresa Orozco,<br />
torozco@geociencias .unam .mx .<br />
Bus time schedule:<br />
Downtown- Juriquilla-<br />
Juriquilla Downtown<br />
Wednesday, 28 4 p .m . 8:15 p .m .<br />
Thursday, 29 7:45 a .m . 6:45 p .m .<br />
Friday, 30 7:45 a .m . 6:45 p .m .*/ 8:45 p .m .**<br />
Saturday, 31 7:45 a .m . 1:15 p .m .<br />
* For people attending the Keynote Address, bus will stop at<br />
UNAM Campus before riding to Querétaro downtown .<br />
** Bus will depart from UNAM Campus and will stop at<br />
Hotel Misión Juriquilla before riding to Querétaro downtown .<br />
Accommodations<br />
A block <strong>of</strong> rooms is reserved at a discounted rate at the<br />
Hotel Misión Juriquilla, Blvd . Villas del Mesón 56, Juriquilla,<br />
76230 Querétaro . To qualify for special meeting rates, please<br />
identify yourself as a GSA attendee . Reservation can be made<br />
by email (reservaciones@misionqueretaro .com), phone +52<br />
(442) 234-0000, or online at http://www .hotelesmision .com/<br />
Home .aspx?Preserve=1, using the promotional code “GSA”.<br />
Information about other hotels is available on the web site <strong>of</strong><br />
the Querétaro Tourism Office: http://www .queretaro .travel/ . To<br />
avoid transport problems, we suggest staying in the meeting<br />
hotel or in Querétaro downtown, from where free bus transport<br />
will be <strong>of</strong>fered .<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 29
Hotel Misión<br />
Juriquilla<br />
Juriquilla<br />
Lake<br />
Plaza<br />
Naútica<br />
30 <strong>2012</strong> GSA Abstracts with Programs<br />
Villas del Mesón<br />
1. Registration 6. Mariposa 1 (upstairs)<br />
2. Gobernador 6. Mariposa 2<br />
3. Goyesco 1 7. Siglo XVIII<br />
4. Juárez 1-2 8. Siglo XVIII annexe<br />
5. Juárez 3 9. Parián<br />
Chapel<br />
3<br />
3<br />
Plaza<br />
Amarras<br />
Blvd. Juriquilla<br />
Plaza<br />
Juriquilla<br />
Centro<br />
Académico y<br />
Cultural, UNAM<br />
Plaza del<br />
Claustro<br />
2<br />
Plaza El Pueblito<br />
UNAM<br />
Campus<br />
1<br />
6<br />
Commercial areas<br />
with restaurants<br />
Banks<br />
Route from Querétaro<br />
to San Luis Potosí<br />
MEX<br />
57<br />
200 m<br />
500 ft<br />
4 5<br />
Corridor<br />
8<br />
9<br />
7<br />
Parking
Dining<br />
Hotel Misión Juriquilla houses two restaurants; the<br />
Aranjuez and the Mavericks . Also, a variety <strong>of</strong> restaurants<br />
and bars are located within walking distance from the hotel<br />
(see map) . The Centro Académico Cultural at UNAM<br />
Campus (~1 .5 km away) has an inexpensive dinning facility .<br />
Registration<br />
Registration is required to participate in any event at<br />
the meeting, including technical sessions, symposia, field<br />
trips, exhibits, special meetings, and planned social events .<br />
Registration badges must be worn for access to all activities,<br />
and guest registration is required for attendance at the<br />
welcoming reception, scheduled lunches, and field trips . A<br />
current student ID is required to obtain student registration<br />
rates .<br />
On-site registration and badge pick-up is located in corridor<br />
in front <strong>of</strong> Juárez 1 room, and is open at the following<br />
times:<br />
Wednesday, 28 <strong>March</strong> 2–7 p .m .<br />
Thursday, 29 <strong>March</strong> 8 a .m .–6 p .m .<br />
Friday, 30 <strong>March</strong> 8 a .m .–6 p .m .<br />
Saturday, 31 <strong>March</strong> 8 a .m .–noon<br />
On-site Registration Fees (US dollars)<br />
Type Full Meeting One-Day<br />
Pr<strong>of</strong>essional member . . . . . . . . . . . . . . . . . . . . $190 . . . . . . . . . . . . . . . . .$110<br />
Pr<strong>of</strong>essional member 70+ . . . . . . . . . . . . . $120 . . . . . . . . . . . . . . . . . . . .n/a<br />
Pr<strong>of</strong>essional non-member . . . . . . . . . . . . . $210 . . . . . . . . . . . . . . . . .$170<br />
Student member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $80 . . . . . . . . . . . . . . . . . . .$55<br />
Student non-member . . . . . . . . . . . . . . . . . . . $100<br />
Guest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $80<br />
Field Trip only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $35<br />
Cancellations, Changes, and Refunds<br />
Requests for cancellations must have been received in<br />
writing at GSA Headquarters by 5 <strong>March</strong> <strong>2012</strong> . No refunds<br />
will be made on cancellation notices received after this date .<br />
Refunds will be mailed from GSA after the meeting; refunds<br />
for fees paid by credit card will be credited to the card identified<br />
on the registration form . GSA cannot provide refunds for<br />
on-site registration, the Abstracts with Programs book, and<br />
event ticket sales .<br />
Student Volunteers<br />
All student volunteers are required to check in with<br />
the Student Volunteer Coordinator Mariano Cerca in the<br />
Speaker Ready Room (Gobernador Room) or at the GSA<br />
registration desk in the corridor in front <strong>of</strong> Juárez 1 room .<br />
Training for volunteer activity is included in the required<br />
six- hour shift and is taking place on Wednesday at noon in<br />
Mariposa 1 Room .<br />
Welcoming Reception<br />
The welcoming reception will be held Wednesday 28<br />
<strong>March</strong>, 6-8 p .m . in the Parián at Plaza El Pueblito . Student<br />
posters and exhibit booths will be open from the first hour <strong>of</strong><br />
the welcoming reception (5-9 p .m .) . Hors d’oeuvres and one<br />
complimentary drink at the opening reception are included<br />
with each registration . A cash bar will also be available .<br />
Exhibits<br />
Exhibits are located in the Juárez 1-2 Room, and are open<br />
at the following times:<br />
Wednesday, 28 <strong>March</strong> 5–7 p .m . (exhibits opening)<br />
Thursday, 29 <strong>March</strong> 8:30 a .m .–6 p .m .<br />
Friday, 30 <strong>March</strong> 8:30 a .m .–6 p .m .<br />
Saturday, 31 <strong>March</strong> 8:30 a .m .–1 p .m .<br />
Undergraduate and Graduate Student Presentation<br />
Awards<br />
To recognize exceptional work, the Cordilleran Section is<br />
<strong>of</strong>fering awards for outstanding oral and poster presentation<br />
to both graduate and undergraduate students .<br />
Mentoring programs<br />
Sponsored by the GSA Foundation. For more information,<br />
contact Jennifer Nocerino at jnocerino@geosociety .org .<br />
Roy J. Shlemon Mentor Program in Applied Geoscience.<br />
Thursday, 29 <strong>March</strong> <strong>2012</strong>, 1–2:30 p .m . Room Siglo XVIII<br />
annexe . This program is designed to extend the mentoring<br />
reach <strong>of</strong> individual pr<strong>of</strong>essionals from applied geology to<br />
undergraduates and graduate students attending GSA Section<br />
Meetings . Over free lunches, mentors and students discuss<br />
pr<strong>of</strong>essional opportunities and challenges that await students<br />
after graduation . Every registered student receives a ticket<br />
to the Shlemon Luncheon along with his/her badge . Please<br />
arrive early as attendance is limited to the space available .<br />
The John Mann Mentors in Applied Hydrogeology<br />
Program. Friday, 30 <strong>March</strong> <strong>2012</strong>, 1 -2:30 p .m . Room Siglo<br />
XVIII annexe . The Mann Mentors in Applied Hydrogeology<br />
Program presents mentoring opportunities for undergraduate<br />
and graduate students as well as recent graduates with<br />
a declared interest in applied hydrogeology as a career to<br />
interact and network with practicing hydrogeology pr<strong>of</strong>essionals<br />
. This relaxed but focused small-scale event features a<br />
free lunch for student(s) and mentors . Every student receives<br />
a ticket to the Mann Luncheon along with his/her badge .<br />
Please arrive early as attendance is limited to the space<br />
available .<br />
GSA Town Hall Meeting . Thursday, 29 <strong>March</strong>, 5:30–<br />
6:30 p .m . Room Siglo XVIII . All meeting attendees are invited<br />
to this event to discuss the the <strong>Society</strong>’s future . Moderated<br />
by a member <strong>of</strong> the GSA Executive Board . Learn more about<br />
GSA and GSA’s strategic plan at http://www .geosociety .org/<br />
aboutus/index .htm . A cash bar is available .<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 31
Cordilleran Section GSA Annual Business Meeting.<br />
Friday, 30 <strong>March</strong>, 5:30–6:30 p .m . Mariposa 2 room . All<br />
Cordilleran members are invited to meet the management<br />
board in this annual meeting where the new chair is appointed<br />
for the <strong>2012</strong>–2013 period .<br />
Technical Sessions<br />
The technical program consists <strong>of</strong> a symposium, theme<br />
sessions and general discipline sessions . Sessions are scheduled<br />
for oral and poster presentations beginning 8:30 a .m .<br />
Thursday, 29 <strong>March</strong>, and concluding at 12:50 a .m . Saturday,<br />
31 <strong>March</strong> . All oral and poster sessions are in the Conference<br />
area <strong>of</strong> Hotel Misión Juriquilla .<br />
Most <strong>of</strong> the oral sessions consist <strong>of</strong> 20-minute presentations,<br />
which includes ~17 minutes for the presentation and<br />
3 minutes for questions/discussion . Session chairs are requested<br />
to strictly adhere to the schedule and to limit speakers to<br />
the allotted times . In all sessions, only one laptop computer<br />
running Windows 7 with PowerPoint 2007 s<strong>of</strong>tware, one projector,<br />
and one screen will be provided . Speakers will not be<br />
able to use their own computers for presentations .<br />
Posters are displayed according to this schedule for the<br />
date assigned: Wednesday from 5 to 6:30 p .m ., Thursday or<br />
Friday from 8:30 a .m . to 6:30 p .m . Authors are present at<br />
their posters from 5 to 6:30 p .m . on Wednesday and from 4:30<br />
to 6:30 p .m . on Thursday or Friday . Any posters remaining<br />
after 6:30 p .m . will be discarded . Poster presenters will have<br />
one 1 .2 m x 1 .8 m vertical display board . Electrical hookups<br />
will not be available for poster boards .<br />
Speaker Ready Room. Gobernador room is serving as<br />
the speaker ready room . Student volunteers are staffing the<br />
speaker ready room and providing assistance for uploading<br />
presentations . Each speaker should bring their PowerPoint<br />
presentation to the speaker ready room on either a CD-ROM<br />
disk or on a USB drive according to the schedule listed below .<br />
Speaker Ready Room Schedule<br />
Wednesday, 28 <strong>March</strong> 3–6 p .m .<br />
Thursday, 29 <strong>March</strong> 8 a .m .–5 p .m .<br />
Friday, 30 <strong>March</strong> 8 a .m .–5 p .m .<br />
Saturday, 31 <strong>March</strong> 8 a .m .–11 a .m .<br />
For morning sessions, please have your presentations<br />
loaded the afternoon before the talk by 5 p .m . For afternoon<br />
sessions, please have your presentations loaded by noon on<br />
the day <strong>of</strong> the talk . All speakers should double-check their<br />
presentations in the Speaker Ready Room, especially speakers<br />
who created their talks on a Macintosh and converted it to<br />
run on Windows .<br />
Cameras, Sound Equipment, and Smoking Policy<br />
GSA meeting policy prohibits the use <strong>of</strong> cameras or sound<br />
recording equipment at technical sessions . The Conference<br />
area <strong>of</strong> Hotel Misión Juriquilla is a smoke-free facility and<br />
the local committee has adopted a no-smoking policy for all<br />
meeting rooms, session rooms, eating areas and exhibit areas .<br />
32 <strong>2012</strong> GSA Abstracts with Programs<br />
Keynote Address<br />
Joaquín Ruiz, University <strong>of</strong> Arizona and Past President <strong>of</strong><br />
GSA, Isotopic Studies <strong>of</strong> Hydrocarbon Systems .<br />
Auditorium <strong>of</strong> Centro Académico Cultural del Campus<br />
UNAM Juriquilla, 7–8 p .m . Hors d’oeuvres and complimentary<br />
drinks will be served at the end, courtesy <strong>of</strong> UNAM .<br />
Symposium<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangæa in the<br />
<strong>America</strong>s . Co-sponsored by IGCP 597 (Origin and Evolution <strong>of</strong><br />
Pangea) and IGCP 574 (Bending and bent orogens, continental<br />
ribbons). Brendan Murphy, St . Francis Xavier University,<br />
bmurphy@stfx .ca; Jarda Dostal, Saint Mary’s University,<br />
Jarda .Dostal@StMarys .ca; Damian Nance, University <strong>of</strong><br />
Ohio, nance@ohio .edu .<br />
Theme sessions<br />
T1. Silicic Volcanism. Cathy Busby, cathy@crustal .ucsb .edu;<br />
Graham Andrews, gdma1977@gmail .com; both at University<br />
<strong>of</strong> California at Santa Barbara .<br />
T2. Ore deposits and Ore Genesis in the <strong>America</strong>n<br />
Cordillera. Antoni Camprubi, Instituto de Geología, UNAM,<br />
camprubitaga@gmail .com .<br />
T3. Convergent Margin <strong>of</strong> Western Pangea: Triassic-<br />
Jurassic Magmatism, Sedimentation and Tectonics from<br />
Colombia to Oregon. Timothy Lawton, New Mexico State<br />
University, tlawton@nmsu .edu; Rafael Barboza-Gudiño,<br />
Universidad Autónoma de San Luis Potosí, México,<br />
rbarboza@uaslp .mx; Roberto Molina-Garza, Centro de<br />
Geociencias, UNAM, rmolina@geociencias .unam .mx .<br />
T5. Mechanisms <strong>of</strong> Arc Magma Generation along the<br />
Cordillera. Laura Mori, Instituto de Geología, UNAM,<br />
lmori@geologia .unam .mx; Peter Schaaf, Instituto de<br />
Ge<strong>of</strong>ísica, UNAM, pschaaf@ge<strong>of</strong>isica .unam .mx; Arturo<br />
Gómez Tuena, Centro de Geociencias, UNAM, tuena@<br />
geociencias .unam .mx .<br />
T6. Terrane Accretion, Flat Slab Subduction, and<br />
Convergence Rate Variations: What Caused the Cretaceous-<br />
Paleogene Shortening across the Mexican Cordillera?<br />
Michelangelo Martini, Instituto de Geología, UNAM,<br />
mmartini@geologia .unam .mx; Mariano Cerca, Centro de<br />
Geociencias, UNAM, mcerca@geociencias .unam .mx;<br />
Martín Valencia, Instituto de Geología, UNAM, valencia @<br />
geologia .unam .mx; Elisa Fitz Díaz, University <strong>of</strong> Michigan,<br />
Ann Arbor, fitzdiaz@umich .edu; Gabriel Chavez-Cabello,<br />
Universidad de Nuevo León, Linares, gabchave@hotmail .com;<br />
Timothy Lawton, New Mexico State University, tlawton@<br />
nmsu .edu .<br />
T8. Lithosphere Stretching and Magmatism Leading to<br />
the Gulf <strong>of</strong> California. Luca Ferrari, Centro de Geociencias,<br />
UNAM, luca@geociencias .unam .mx; Arturo Martin Barajas,<br />
CICESE, amartin@cicese .mx; Joann Stock, California<br />
Institute <strong>of</strong> Technology, jstock@gps .caltech .edu .<br />
T9. What Fossil Ages and Distributions Tell Us<br />
about the History <strong>of</strong> the Ancient Gulf <strong>of</strong> California. Judy<br />
Terry Smith, Smithsonian Institution, National Museum<br />
<strong>of</strong> Natural History; Judith Smith, redcloud1@earthlink .net;
Ana Luisa Carreño, Instituto de Geología, UNAM,<br />
anacar@servidor .unam .mx; Javier Helenes, CICESE,<br />
jhelenes@cicese .mx .<br />
T10. The Caribbean Plate and its Geologic Connections<br />
with North and South <strong>America</strong>. Luigi Solari, Centro<br />
de Geociencias, UNAM, solari@servidor .unam .mx; Uwe<br />
Martens and Jim Pindell, Tectonic Analysis Ltd ., umartens@<br />
zoho .com .<br />
T11. Developments in Geophysical Investigations <strong>of</strong><br />
Volcano Hydrothermal Systems: Exploration and Hazards.<br />
Jonathan M .G . Glen, jglen@usgs .gov, Shaul Hurwitz,<br />
shaulh@usgs .gov, both at U .S . <strong>Geological</strong> Survey; Vyacheslav<br />
M . Zobin, Universidad de Colima, vzobin@ucol .mx;<br />
Robert A . Sohn, Woods Hole Oceanographic Institution,<br />
rsohn@whoi .edu .<br />
T12. Limnogeology Studies and Paleoenvironmental<br />
Records from Ancient and Modern Lakes. Beatriz Ortega,<br />
bortega@ge<strong>of</strong>isica .unam .mx, Margarita Caballero, maga@<br />
ge<strong>of</strong>ísica .unam .mx, both at Instituto de Ge<strong>of</strong>ísíca, UNAM;<br />
Socorro Lozano, Instituto de Geología, UNAM, mslozano@<br />
servidor .unam .mx .<br />
T13. Heterogeneous Geologic Formations: Modeling<br />
Spatial Variability. Eric Morales Casique, Instituto de<br />
Geología, UNAM, ericmc@geologia .unam .mx; Martín Díaz<br />
Viera, Instituto Mexicano del Petróleo, mdiazv@imp .mx .<br />
T14. Ground Deformation Related to Anthropogenic<br />
Activities: Achievements in the Development <strong>of</strong><br />
Geoscientific Information Systems for Improved<br />
Management <strong>of</strong> Natural Resources. Dora Carreón-Freyre,<br />
freyre@geociencias .unam .mx, Mariano Cerca, mcerca@<br />
geociencias .unam .mx, both at Centro de Geociencias,<br />
UNAM; Devin Galloway, US <strong>Geological</strong> Survey, dlgallow@<br />
usgs .gov; Penélope López-Quiroz, Centro de Investigación en<br />
Geografía y Geomática, penelope@centrogeo .org .mx .<br />
T16. Undergraduate Research Posters. Co-Sponsored by<br />
the Council on Undergraduate Research (CUR). Kathleen D .<br />
Surpless, Trinity University, San Antonio, Texas, ksurples@<br />
trinity .edu .<br />
T17. Environmetal Geochemistry. Mario Villalobos,<br />
mariov@geologia .unam .mx; Laura Beramendi, laura@<br />
geologia .unam .mx; Francisco Romero, fmrch@<br />
geologia .unam .mx; Priyadarsi Roy, Instituto de Geología,<br />
UNAM; Ofelia Morton, Instituto de Ge<strong>of</strong>ísica, UNAM,<br />
omorton@ge<strong>of</strong>isica .unam .mx .<br />
General Discipline Sessions<br />
Oral<br />
Structural Geology and Tectonics<br />
Poster sessions<br />
Structural Geology and Tectonics<br />
Geochemistry and Petrology <strong>of</strong> Igneous Rocks<br />
Geophysics and Seismology<br />
Stratigraphy and Sedimentology<br />
Paleontology<br />
Volcanology<br />
Field Trips<br />
1. Late Paleozoic—Early Mesozoic <strong>of</strong> the Acatlán and<br />
Ayu Complexes, Southern Mexico: Events on the Periphery<br />
<strong>of</strong> Pangæa Synchronous with Amalgamation and Breakup.<br />
Co-sponsored by IGCP 597: Amalgamation and Breakup <strong>of</strong><br />
Pangea. Duncan Keppie (duncan@unam .mx), Instituto de<br />
Geología, UNAM; Brendan Murphy, Gonzalo Galaz, Moritz<br />
Kirsch, and Maria Helbig . Sat .–Tue ., 31 <strong>March</strong>–3 April .<br />
US$588 . Field trip starts in Querétaro and ends either at a<br />
Mexico City airport hotel (night <strong>of</strong> the 3 rd April—plan to fly<br />
out on the 4 th April) or at Querétaro airport at noon on the<br />
4 th April .<br />
This field trip in the Acatlán Complex <strong>of</strong> southern<br />
Mexico will examine the geological record <strong>of</strong> an orogen on<br />
the western periphery <strong>of</strong> Pangea: 1) Triassic-Jurassic deposition<br />
<strong>of</strong> a clastic sequence intruded by tholeiitic mafic dikes<br />
that underwent high-grade metamorphism and migmatization<br />
and exhumation on the western margin <strong>of</strong> Pangæa;<br />
2) Late Carboniferous – Early Permian synchronous arc<br />
magmatism and pull-apart basin sedimentation followed by<br />
Triassic thrusting on the western periphery <strong>of</strong> Pangæa; 3) A<br />
Devonian-Permian sequence synchronous with Carboniferous<br />
extrusion <strong>of</strong> high-pressure rocks into the upper plate above a<br />
subduction zone on the western periphery <strong>of</strong> Pangæa .<br />
2. The Late Cretaceous Mexican Fold-and-Thrust<br />
Belt and its Possible Relation with the Accretion <strong>of</strong><br />
the Guerrero Terrane. Michelangelo Martini (mmartini@<br />
geologia .unam .mx), Elisa Fitz, Timothy Lawton . Sun .–Tue .,<br />
1–3 April . US$344 .<br />
The fieldtrip will provide a comprehensive overview <strong>of</strong><br />
the Mexican Fold-Thrust Belt (MFTB) in the Sierra Madre<br />
Oriental <strong>of</strong> central Mexico, and the possible suture belt <strong>of</strong> the<br />
Guerrero Terrane in the Sierra de Guanajuato . During the<br />
first two days we will visit the Sierra Gorda and Tolimán area<br />
in Querétaro state with spectacular landscapes, and excellent<br />
exposure <strong>of</strong> the MFTB structures . Aspects on the regional<br />
structure, syn-tectonic sedimentation, deformation style,<br />
shortening gradients, temperature and timing <strong>of</strong> deformation<br />
will be addressed during the first day <strong>of</strong> the field-trip . During<br />
the second day we will observe changes in the Cretaceous<br />
stratigraphy and structure as we move to the western edge <strong>of</strong><br />
the MFTB in the Tolimán area . We will discuss the tectonic<br />
setting <strong>of</strong> the Tolimán rocks and <strong>of</strong> their secondary structures<br />
. During the third day <strong>of</strong> the trip we will move to the<br />
Guanajuato area, where we have the opportunity to observe<br />
the suture belt between the Guerrero and Sierra Madre terranes<br />
. This belt is a ~70 km-wide deformation zone, where<br />
continent-recycled meta-sedimentary rocks <strong>of</strong> the Sierra<br />
Madre terrane overthrust arc-recycled meta-sedimentary<br />
rocks <strong>of</strong> the Guerrero Terrane . Based on the fieldtrip geologic<br />
observations we can discuss the possibility that the Guerrero<br />
Terrane accretion triggered the Late Cretaceous MFTB <strong>of</strong> the<br />
Sierra Madre Oriental .<br />
3. Environmental Geochemistry <strong>of</strong> the Pozos Mining<br />
District, Guanajuato, East-Central Mexico. Alejandro<br />
Carrillo (ambiente@geociencias .unam .mx), Juventino<br />
Martínez, Gilles Levresse . Wed ., 28 <strong>March</strong> . US$80 .<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 33
The participants will explore the Mining District <strong>of</strong><br />
Mineral de Pozos and its environmental aspects (mine tailings<br />
deposited without any environmental concern whatsoever) .<br />
This historical mining site is one <strong>of</strong> the oldest in Mexico,<br />
beginning in the 1600´s . The exploitation was focused on<br />
silver and gold in the sulfur-rich epithermal veins hosted by<br />
deformed Jurassic and Cretaceous sedimentary rocks . The site<br />
was abandoned by early 1940´s, with a “Bonanza” between<br />
1892 and 1897 . We will visit several ancient exploitation<br />
“Haciendas”, which look more as ”ghost places”, than exploitation<br />
plants . Have your camera ready for “shoots into the<br />
past” from this, once very active and economical center <strong>of</strong><br />
central-east Mexico . The field trip is one full day from 7 am<br />
to 7 pm .The field trip will include lunch, and will start, and<br />
end, at the lobby <strong>of</strong> Hotel Mision Juriquilla, Querétaro .<br />
4. Sierra de Catorce: Remnants <strong>of</strong> the Ancient Western<br />
Equatorial Margin <strong>of</strong> Pangea in Central Mexico. José<br />
Rafael Barboza-Gudiño (rbarboza@uaslp .mx) . Universidad<br />
Autónoma de San Luis Potosí; Roberto S . Molina-Garza .<br />
Centro de Geociencias, UNAM; Timothy F . Lawton .<br />
New Mexico, Las Cruces . Sun .–Tue ., 25–27 <strong>March</strong> . US$520 .<br />
This field trip begins and ends in San Luis Potosí<br />
(~200 km north <strong>of</strong> Querétaro) . Participants will explore<br />
turbiditic and wildflysh sequences <strong>of</strong> a triassic submarine fan<br />
system (Potosí Fan) or Upper Triassic Zacatecas Formation,<br />
and volcanic successions <strong>of</strong> the Lower Jurassic volcanic arc<br />
<strong>of</strong> western North <strong>America</strong> in north-central to northeastern<br />
Mexico (“Nazas Arc”) . Both paleogeographic elements,<br />
outcropping in the Mesa Central province, are linked to the<br />
ancient western equatorial margin <strong>of</strong> Pangea during the early<br />
Mesozoic time . The trip will examine also the Middle to<br />
Upper Jurassic continental fining upward succession (La Joya<br />
Formation) and transgressive Upper Jurassic-Cretaceous<br />
cover exposed in the Sierra de Catorce uplift, including their<br />
stratigraphic and tectonic relations . Several stops will show<br />
sampling sites <strong>of</strong> new geochronologic data, which have implications<br />
for tectonic and paleogeographic reconstruction <strong>of</strong><br />
central and northeastern Mexico . Field trip ends on <strong>March</strong> 27<br />
in San Luis Potosí at 18 , but participants have the option to<br />
stay in San Luis Potosí that night at own expense and travel<br />
on <strong>March</strong> 28 with the field trip leaders to Juriquilla with a<br />
stop at the spectacular La Joya Honda maar, arriving in time<br />
for the opening reception . No additional cost will be charged<br />
for this optional trip .<br />
5. Late Pleistocene Rhyolitic Explosive Volcanism at<br />
Los Azufres Volcanic Field, Central Mexico. José Luis Arce,<br />
Instituto de Geología, UNAM, (jlarce@geologia .unam .mx);<br />
José Luis Macías Instituto de Ge<strong>of</strong>ísica, UNAM, (macias@<br />
ge<strong>of</strong>isica .unam .mx) . Sun .–Tues ., 25–27 <strong>March</strong> . US$450 .<br />
The Azufres Volcanic field, which lies in the Trans-<br />
Mexican Volcanic Belt, holds the second most important<br />
geothermal field in Mexico . This volcanic field is located<br />
within the remnants <strong>of</strong> a caldera structure . At depth, the<br />
Azufres volcanic field rests upon Miocene rocks (Sierra de<br />
Mil Cumbres), and Miocene-Pliocene volcanics (Sierra de<br />
Santa Inés) . The oldest volcanic products <strong>of</strong> the volcanic<br />
field are 1 .4 Ma old basalts, followed by a stratigraphic succession<br />
<strong>of</strong> andesites, dacites, and rhyolites forming domes,<br />
34 <strong>2012</strong> GSA Abstracts with Programs<br />
lava flows, stratovolcanoes, plateau lavas, and pyroclastic<br />
deposits with ages as young as 26 ka . In the fieldtrip we will<br />
examine the young rhyolitic pyroclastic sequences exposed in<br />
the southwestern sector <strong>of</strong> the Los Azufres volcanic field and<br />
discuss the relationship <strong>of</strong> this rhyolitic volcanism with the<br />
nearby volcanic structures (domes, stratovolcanoes) . During<br />
the fieldtrip we will visit outcrops <strong>of</strong> pyroclastic deposits<br />
associated to Plinian and sub-Plinian eruptions, and discuss<br />
the vent source, dynamics and magnitude <strong>of</strong> these eruptive<br />
events . In addition, we will observe the morphology <strong>of</strong> faults<br />
transecting the geothermal field and some kinematic indicators<br />
<strong>of</strong> fault movement.<br />
This field trip begins on <strong>March</strong> 25 in the morning at<br />
the International airport <strong>of</strong> Mexico City and ends at Hotel<br />
Misión Juriquilla, Querétaro (meeting headquarter) no later<br />
than 8 p .m . on <strong>March</strong> 27 . Breakfast <strong>of</strong> the first day and lodging<br />
for the night <strong>of</strong> <strong>March</strong> 27 are not included in the fieldtrip<br />
fee . The nights <strong>of</strong> <strong>March</strong> 25 and 26 is spent in Ciudad<br />
Hidalgo . The driving distance from Mexico City to Ciudad<br />
Hidalgo, Michoacán is ~375 km (233 miles) (driving time<br />
~4 .5 hours), and from Ciudad Hidalgo to Juriquilla is 360 km<br />
(236 miles) .<br />
6. Ground Deformation Related to Anthropogenic<br />
Activities in Urbanized Areas <strong>of</strong> the Mexico Basin.<br />
Mariano Cerca (mcerca@geociencias .unam .mx) and Dora<br />
Carreón, Centro de Geociencias, UNAM . Sun .–Mon ., 1–2<br />
April . US$288 .<br />
The modern Mexico megacity occupies almost all the<br />
surface <strong>of</strong> the Valley <strong>of</strong> Mexico and is exposed to natural and<br />
man-induced hazards affecting many aspects <strong>of</strong> urban development<br />
. In Mexico City, groundwater has been over-exploited<br />
for human consumption during the last fifty years, leading to<br />
a dramatic decline <strong>of</strong> piezometric levels and to the associated<br />
land and subsoil deformation . In this two-day fieldtrip we will<br />
examine regional land subsidence and the vulnerability to<br />
fracturing <strong>of</strong> the lacustrine soils <strong>of</strong> Mexico City .<br />
7. Geology and Tectonics <strong>of</strong> the Southeastern Portion <strong>of</strong><br />
the Sierra de Guanajuato. José Jorge Aranda-Gómez (jjag@<br />
geociencias .unam .mx); Pablo Dávila-Harris; Luis Vassallo .<br />
Sun .–Tue ., 25–27 <strong>March</strong> . Cost: US$380 .<br />
Sierra de Guanajuato is located in central México in a<br />
region where several major geologic and tectonic provinces<br />
join . Rocks exposed in the Mesozoic basal complex are keys<br />
to understand the Guerrero terrane concept and the evolution<br />
<strong>of</strong> the southern part <strong>of</strong> the North <strong>America</strong> craton during<br />
the early Cretaceous . A Tertiary volcano-sedimentary succession,<br />
unconformably resting on top <strong>of</strong> the basal complex,<br />
includes one <strong>of</strong> the best documented continental red bed<br />
deposits in central México, which was accumulated immediately<br />
after the end <strong>of</strong> the Laramide orogeny and records<br />
the earliest pulses <strong>of</strong> extension in the region . Resting atop<br />
the red beds is a volcanic succession genetically related to<br />
the Oligocene activity <strong>of</strong> Sierra Madre Occidental volcanic<br />
province . World-class silver deposits that have been<br />
exploited for nearly four centuries are hosted in the Tertiary<br />
volcano-sedimentary succession, as well as in the rocks <strong>of</strong> the<br />
basal complex . The rocks <strong>of</strong> the basal complex and regional<br />
tectonic features are the focus <strong>of</strong> the first day <strong>of</strong> the field trip
and the last two days are devoted to the study <strong>of</strong> the nature<br />
and probable source <strong>of</strong> the volcanic rocks, which immediately<br />
preceded the ore deposition along two conspicuous sets <strong>of</strong><br />
normal faults .<br />
8. Recent Volcanism and Hazards at the Eastern<br />
Trans-Mexican Volcanic Belt. Gerardo Carrasco-Núñez<br />
(gerardoc@geociencias .unam .mx), Pablo Dávila-Harris,<br />
Nancy Riggs, Michael Ort, Brian Zimmer, Chris Willcox and<br />
Mike Branney . Sat .–Mon ., 31 <strong>March</strong>–2 Apr ., US$270 .<br />
In this field trip we will examine examples <strong>of</strong> recent<br />
(late Pleistocene and Holocene) volcanism in the eastern<br />
Trans-Mexican Volcanic Belt, where a diversity <strong>of</strong> volcanism<br />
and spectacular exposures can be seen . We will explore the<br />
complex pyroclastic succession and caldera-rim effusions <strong>of</strong><br />
Los Humeros caldera volcano and geothermal field . We will<br />
also examine a very interesting vitrophyric rhyolite dome<br />
(Cerro Pizarro) and the structure and evolution <strong>of</strong> two contrasting<br />
maar volcanoes: Atexcac (a classic basaltic maar)<br />
and Cerro Pinto, a rhyolitic tuff ring-dome complex .<br />
9. Geology and Geochronology <strong>of</strong> Tláloc, Telapón, and<br />
Iztaccíhuatl Volcanoes, Sierra Nevada, Central Mexico. José<br />
Luis Macías . Instituto de Ge<strong>of</strong>ísica, Unidad Morelia, UNAM,<br />
macias@ge<strong>of</strong>isica .unam .mx, José Luis Arce, Instituto de<br />
Geología, UNAM; F . García, Instituto Politécnico Nacional,<br />
Paul W . Layer, University <strong>of</strong> Alaska at Fairbanks, G . Reyes-<br />
Agustín, Instituto Politécnico Nacional, F . López-Pizaña,<br />
Instituto Politécnico Nacional, H . Rueda, Posgrado de<br />
Ciencias de la Tierra, UNAM . Sun .–Wed ., 1–4 April .<br />
US$ 477 .<br />
The field trip will focus on late Quaternary geology, morphology<br />
and geochronology <strong>of</strong> volcanoes <strong>of</strong> La Sierra Nevada<br />
volcanic range . This range includes, from south to north, the<br />
active Popocatépetl, Iztaccíhuatl, Telapón, and Tláloc volcanoes<br />
. The trip will highlight recent work, including mapping,<br />
stratigraphy, and geochronological data . The trip will include<br />
brief roadside stops, several short hikes to reach outcrops, and<br />
strenuous long hikes at altitudes over 4,000 m . Topics covered<br />
at fieldtrip stops are: 1) Evidence <strong>of</strong> late Pleistocene explosive<br />
activity at Tláloc volcano accompanied by effusive activity,<br />
2) Effusive build-up <strong>of</strong> Telapón volcano and surrounding<br />
domes with episodes <strong>of</strong> dome destruction, 3) Major collapse<br />
<strong>of</strong> Los Pies cone at the southern edge <strong>of</strong> the Iztaccíhuatl volcanic<br />
complex and, 5) Popocatépetl´s latest explosive episode<br />
which occurred in January 2001 and generated a 6-km long<br />
scoria flow deposit .<br />
This field trip begins at Hotel Misión, Juriquilla,<br />
Querétaro and ends at the Mexico City International airport<br />
. Participants on this field trip should eat breakfast (not<br />
included in the fieldtrip fee) before departing . The fieldtrip<br />
fee includes lunches for the four days, three breakfasts, and<br />
dinner for the third night . During the first day, the driving<br />
distance from Juriquilla, Querétaro to Tláloc volcano is about<br />
280 km (~4 hours), and during the second day, the driving<br />
distance from Popocatépetl volcano to the Mexico City<br />
International airport is 75 km (~2 hours considering traffic) .<br />
We plan to return to the Mexico City International airport<br />
around 6 pm .<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 35
Schedule <strong>of</strong> Events<br />
EvEnt timE Location<br />
Field trips<br />
Sunday, 25 march<br />
Sierra de Catorce: Remnants <strong>of</strong> the ancient western equatorial margin<br />
<strong>of</strong> Pangea in central Mexico<br />
Late Pleistocene Rhyolitic Explosive Volcanism at Los Azufres Volcanic<br />
Field, Central Mexico<br />
Geology and Tectonics <strong>of</strong> the Southeastern Portion <strong>of</strong> the Sierra de<br />
Guanajuato<br />
WEdnESday, 28 march<br />
Exhibit Set-up 10–17 Juárez 1-2<br />
Student volunteer training 12–14 Mariposa 1<br />
Speaker ready room 14–18 Gobernador<br />
8<br />
9<br />
8<br />
Lobby <strong>of</strong> City Express Hotel in<br />
San Luis Potosí<br />
Fiesta Inn Hotel at Mexico City<br />
International Airport<br />
Hotel Misión Juriquilla<br />
Lobby<br />
registration open 14–19 Corridor, in front <strong>of</strong> Juárez 1<br />
Exhibit opening 17–19 Juárez 1-2<br />
opening reception 18–20 Parián (Plaza El Pueblito)<br />
Poster Session<br />
T16. Undergraduate Research *<br />
* Posters will remain displayed Wednesday and Thursday<br />
Field trip<br />
Environmental Geochemistry <strong>of</strong> the Pozos Mining District, Guanajuato,<br />
East-Central Mexico<br />
thurSday 29 march<br />
17–18:30 Juárez 1-2<br />
7 Hotel Misión Juriquilla Lobby<br />
registration open 8–17 Corridor, in front <strong>of</strong> Juárez 1<br />
Speaker ready room 8–17 Gobernador<br />
Exhibits open 8:30–18 Juárez 1-2<br />
roy J. Shlemon mentor Program in applied Geoscience 13–14:30 Siglo XVIII annexe<br />
town hall meeting 17:30–18:30 Siglo XVIII<br />
oral Sessions<br />
morninG<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangea in the <strong>America</strong>s 8:30–12:50 Juárez 3<br />
T8. Lithosphere Stretching and Magmatism Leading to the<br />
Gulf <strong>of</strong> California<br />
8:30–12:55 Siglo XVIII<br />
T17. Environmetal Geochemistry 8:30–12:55 Goyesco 1<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 37
EvEnt timE Location<br />
38 <strong>2012</strong> GSA Abstracts with Programs<br />
aFtErnoon<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangea in the <strong>America</strong>s II 14:30–16:30 Juárez 3<br />
T9. What Fossil Ages and Distributions Tell Us about the History <strong>of</strong> the<br />
Ancient Gulf <strong>of</strong> California?<br />
14:30–16:50 Siglo XVIII<br />
T17. Environmental Geochemistry II, Keynote 14:30–15:00 Goyesco 1<br />
T13. Heterogeneous Geologic Formations: Modeling Spatial Variability 15:00–16:30 Goyesco 1<br />
Poster Sessions **<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangea in the <strong>America</strong>s 8:30–18:30 Juárez 1-2<br />
T8. Lithosphere Stretching and Magmatism Leading to the Gulf<br />
<strong>of</strong> California<br />
T9. What Fossil Ages and Distributions Tell Us about the History <strong>of</strong> the<br />
Ancient Gulf <strong>of</strong> California?<br />
T11. Developments in Geophysical Investigations <strong>of</strong> Volcano<br />
Hydrothermal Systems: Exploration and Hazards<br />
8:30–18:30 Juárez 1-2<br />
8:30–18:30 Juárez 1-2<br />
8:30–18:30 Juárez 1-2<br />
T16. Undergraduate Research 8:30–18:30 Juárez 1-2<br />
T17. Environmetal Geochemistry 8:30–18:30 Juárez 1-2<br />
Geophysics/Seismology 8:30–18:30 Juárez 1-2<br />
Stratigraphy and Sedimentology 8:30–18:30 Juárez 1-2<br />
Palaentology 8:30–18:30 Juárez 1-2<br />
Volcanology 8:30–18:30 Juárez 1-2<br />
** Authors are present at their posters from 16:30 to 18:30.<br />
Friday, 30 march<br />
registration open 8–17 Corridor, in front <strong>of</strong> Juárez 1<br />
Speaker ready room 8–17 Gobernador<br />
Exhibits open 8:30–18 Juárez 1-2<br />
John mann mentors in applied hydrogeology Program. 13–14:30 Siglo XVIII annexe<br />
oral Sessions<br />
morninG<br />
T1. Silicic Volcanism I 8:30–12:50 Juárez 3<br />
T3. Convergent Margin <strong>of</strong> Western Pangea: Triassic-Jurassic Magmatism,<br />
Sedimentation, and Tectonics from Colombia to Oregon<br />
T10. The Caribbean Plate and its Geologic Connections with North and<br />
South <strong>America</strong><br />
T12. Limnogeology Studies and Paleoenvironmental Records from<br />
Ancient and Modern Lakes<br />
8:30–12:50 Goyesco 1<br />
8:30–12:50 Siglo XVIII<br />
8:30–12:50 Mariposa 2
EvEnt timE Location<br />
aFtErnoon<br />
T1. Silicic Volcanism II 14:30–16:30 Juárez 3<br />
T14. Ground Deformation Related to Anthropogenic Activities:<br />
Achievements in the Development <strong>of</strong> Geoscience Information System for<br />
Improved Management <strong>of</strong> Natural Resources<br />
14:30–16:50 Goyesco 1<br />
Structural Geology/Tectonics 14:30–16:50 Siglo XVIII<br />
Poster Sessions **<br />
T1. Silicic Volcanism 8:30–18:30 Juárez 1-2<br />
T2. Ore Deposits and Ore Genesis in the <strong>America</strong>n Cordillera 8:30–18:30 Juárez 1-2<br />
T3. Convergent Margin <strong>of</strong> Western Pangea: Triassic-Jurassic Magmatism,<br />
Sedimentation, and Tectonics from Colombia to Oregon<br />
8:30–18:30 Juárez 1-2<br />
T5. Mechanisms <strong>of</strong> Arc Magma Generation along the Cordillera 8:30–18:30 Juárez 1-2<br />
T6. Terrane Accretion, Flat Slab Subduction, and Convergence Rate<br />
Variations: What Caused the Cretaceous-Paleogene Shortening across<br />
the Mexican Cordillera?<br />
T10. The Caribbean Plate and its Geologic Connections with North and<br />
South <strong>America</strong><br />
T12. Limnogeology Studies and Paleoenvironmental Records from<br />
Ancient and Modern Lakes<br />
8:30–18:30 Juárez 1-2<br />
8:30–18:30 Juárez 1-2<br />
8:30–18:30 Juárez 1-2<br />
Structural Geology/Tectonics 8:30–18:30 Juárez 1-2<br />
Geochemistry and Petrology <strong>of</strong> igneous rocks 8:30–18:30 Juárez 1-2<br />
** Authors are present at their posters from 16:30 to 18:30.<br />
Keynote address<br />
Joaquín ruiz, Department <strong>of</strong> Gesciences, University <strong>of</strong> Arizona,<br />
Past President <strong>of</strong> GSA, Isotopic Studies <strong>of</strong> Hydrocarbon Systems.<br />
19–20<br />
Saturday, 31 march<br />
Centro Académico Cultural (CAC),<br />
UNAM Campus<br />
registration open 8 –noon Corridor, in front <strong>of</strong> Juárez 1<br />
Speaker ready room 8–13 Gobernador<br />
Exhibits open 8 –13 Juárez 1-2<br />
Exhibits take down 13–17 Juárez 1-2<br />
oral Sessions<br />
morninG<br />
T2. Ore Deposits and Ore Genesis in the <strong>America</strong>n Cordillera 8–12:50 Goyesco 1<br />
T5. Mechanisms <strong>of</strong> Arc Magma Generation along the Cordillera 8–12:50 Juárez 3<br />
T6. Terrane Accretion, Flat Slab Subduction, and Convergence Rate<br />
Variations: What Caused the Cretaceous-Paleogene Shortening across<br />
the Mexican Cordillera?<br />
8–12:50 Siglo XVIII<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 39
EvEnt timE Location<br />
Field trips<br />
Late Paleozoic–Early Mesozoic <strong>of</strong> the Acatlán and Ayu Complexes,<br />
Southern Mexico: Events on the Periphery <strong>of</strong> Pangea Synchronous with<br />
Amalgamation and Breakup<br />
Recent Volcanism and Hazards at the Eastern Trans-Mexican Volcanic<br />
Belt<br />
Field trips<br />
40 <strong>2012</strong> GSA Abstracts with Programs<br />
Sunday, 1 aPriL<br />
Ground Deformation Related to Anthropogenic Activities in Urbanized<br />
areas <strong>of</strong> the Mexico Basin<br />
The Late Cretaceous Mexican Fold-and-Thrust Belt and its Possible<br />
Relation with the Accretion <strong>of</strong> the Guerrero Terrane<br />
Geology and Geochronology <strong>of</strong> Tlaloc, Telapon and Iztaccíhuatl<br />
Volcanoes, Sierra Nevada, Central Mexico<br />
Geosphere<br />
is the place<br />
to publish!<br />
13:00 Hotel Misión Juriquilla Lobby<br />
16:00 Hotel Misión Juriquilla Lobby<br />
8 Hotel Misión Juriquilla Lobby<br />
7:30 Hotel Misión Juriquilla Lobby<br />
9 Hotel Misión Juriquilla Lobby<br />
Geosphere <strong>of</strong>fers: • rigorous peer review<br />
• a fl exible format<br />
• free color<br />
• rapid publication after acceptance<br />
• a broad, international audience<br />
Submit your manuscript online at<br />
www.editorialmanager.com/geosphere<br />
For submission details, visit<br />
www.geosociety.org/pubs/geosphere/gsGuide.htm<br />
Submissions welcomed from all geoscience disciplines
SESSion no. 1<br />
Technical Sessions<br />
Meeting policy prohibits the use <strong>of</strong> cameras<br />
or sound-recording equipment at technical<br />
sessions and poster sessions .<br />
EvEninG PoStEr<br />
tEchnicaL SESSionS<br />
T16. Undergraduate Research (Posters) (Council on Undergraduate<br />
Research (CUR))<br />
17:00, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 17:00 to 18:30 Weds. and 16:30-18:30 Thurs.<br />
Booth #<br />
1-1 1 Pérez- Crespo, Víctor Adrián*; Arroyo-Cabrales, Joaquín;<br />
Alva-Valdivia, Luis M.; Morales-Puente, Pedro; Cienfuegos-Alvarado,<br />
Edith; Otero, Francisco J.: inFErEncES For LatE PLEiStocEnE<br />
horSES GEnuS EQuuS SP. at LatE PLEiStocEnE From<br />
SEvEn mEXican LocaLitiES<br />
1-2 2 Cooley, Sarah W.*; Domonoske, Alison F.; Moore, Erin N.; Shukla,<br />
Sagar S.: dEGradation oF morainE SLoPES With aGE in<br />
QuatErnary morainES oF EaStErn caLiFornia<br />
1-3 3 Morgan, Camille*; Jin, Annie; Medlin, Rachel; Kress, Tyler:<br />
BouLdEr hardnESS aS an indication oF rELativE aGE<br />
oF morainES in EaStErn caLiFornia<br />
1-4 4 Sickmann, Zachary*; Surpless, Kathleen DeGraaff; Konetchy, Brant:<br />
ProvEnancE anaLySiS oF thE WinthroP Formation oF<br />
thE mEthoW BaSin, northErn WaShinGton: EvidEncE<br />
For minor PoSt-dEPoSitionaL diSPLacEmEnt<br />
1-5 5 Konetchy, Brant*; Surpless, Kathleen DeGraaff; Sickmann, Zachary:<br />
EvidEncE For minor PoSt-dEPoSitionaL diSPLacEmEnt<br />
oF thE mEthoW BaSin, northErn WaShinGton: dEtaiLEd<br />
ProvEnancE anaLySiS oF thE hartS PaSS Formation<br />
1-6 6 Dustin, Kelly Nicole*; Miller, Robert B.; Shea, Erin: intruSivE<br />
rELationShiPS and dEFormation oF maFic and<br />
tonaLitic rocKS in Part oF thE SEvEn FinGErEd JacK<br />
PLuton, north caScadES, WaShinGton<br />
1-7 7 Grasso, Kyla A.*; Meigs, Andrew; Cladouhos, Trenton T.: oriGin<br />
oF FauLtS, FiSSurES and voLcanic vEnt aLiGnmEntS at<br />
a StructuraL triPLE Junction, nEWBErry voLcano,<br />
cEntraL orEGon<br />
A no-smoking policy has been established by<br />
the Programme Committee and will be followed<br />
in all meeting rooms for technical sessions .<br />
NOTICE<br />
In the interest <strong>of</strong> public information, The <strong>Geological</strong> <strong>Society</strong> <strong>of</strong> <strong>America</strong> provides a forum for the presentation<br />
<strong>of</strong> diverse opinions and positions . The opinions (views) expressed by speakers and exhibitors at these sessions<br />
are their own and do not necessarily represent the views or policies <strong>of</strong> The <strong>Geological</strong> <strong>Society</strong> <strong>of</strong> <strong>America</strong> .<br />
NOTE INDEx SySTEM<br />
Numbers (3-4, 15-4) indicate session and order <strong>of</strong> presentation within that session.<br />
*denotes speaker<br />
WEdnESday, 28 march <strong>2012</strong><br />
1-8 8 Ferreira, Gabriela R.*; Dinklage, William S.: rhyoLitE voLcaniSm<br />
in thE tranS-mEXican voLcanic BELt With imPLicationS<br />
For GroundWatEr FLoW in thE viLLaGE oF GarBanZo<br />
1-9 9 Sabbeth, Leah*; Stock, Joann M.: uPdatEd iSoPach maP oF<br />
thE tuFF oF San FELiPE in BaJa caLiFornia, mEXico<br />
1-10 10 Olivares-Escobar, Asael*; García Dobarganes-Bueno, Juan Esteban;<br />
Levresse, Gilles; Aranda-Rodríguez, Armando: FLuid incLuSionS<br />
anaLySiS at charcaS minE, charcaS mininG diStrict,<br />
mEXico<br />
thurSday, 29 march <strong>2012</strong><br />
morninG oraL<br />
tEchnicaL SESSionS<br />
SESSion no. 2<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangea in the <strong>America</strong>s I (IGCP<br />
597 (Origin and Evolution <strong>of</strong> Pangea) and IGCP 574 (Bending and<br />
Bent Orogens, Continental Ribbons))<br />
08:30, Hotel Misión Juriquilla, Juarez 3<br />
J. Brendan Murphy, Jarda Dostal, and R. Damian Nance, Presiding<br />
2-1 08:30 Murphy, J. Brendan*; Dostal, Jaroslav; Nance, R. Damian:<br />
J. duncan KEPPiE: an aPPrEciation and a<br />
cELEBration<br />
2-2 08:50 Ramos, Víctor A.*: PaLEoZoic tErranES in thE<br />
BaSEmEnt oF thE andES<br />
2-3 09:30 Nance, R. Damian*; Murphy, J. Brendan; Pisarevsky, Sergei A.:<br />
PotEntiaL GEodynamic rELationShiPS BEtWEEn<br />
thE dEvELoPmEnt oF PEriPhEraL oroGEnS aLonG<br />
thE northErn marGin oF GondWana and thE<br />
amaLGamation oF WESt GondWana<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 41
SESSION NO. 2<br />
2-4 09:50 Braid, James A.; Quesada, Cecilio*; Murphy, J. Brendan;<br />
Mortensen, James K.: PrESEncE oF EXotic LauruSSian<br />
cruStaL BLocKS Within, and South oF, thE rhEic<br />
SuturE ZonE in SW iBEria<br />
2-5 10:10 Gladney, Evan R.*: thE GiL marQuEZ PLuton,<br />
SouthErn iBEria: maGmatiSm durinG continEntaL<br />
coLLiSion and thE amaLGamation oF PanGEa<br />
10:30 Break<br />
2-6 10:50 Dahn, Dustin R.L.*; Braid, James A.; Murphy, J. Brendan:<br />
tEctonic SiGniFicancE oF a maFic mÉLanGE in thE<br />
PanGEan SuturE ZonE, SW iBEria<br />
2-7 11:10 Solari, Luigi*; Ortega-Gutiérrez, Fernando; Elias Herrera,<br />
Mariano; Ortega-Obregón, Carlos; Macías Romo, Consuelo;<br />
Reyes Salas, Margarita: dEtritaL ProvEnancE oF thE<br />
GrEnviLLian oaXacan comPLEX, SouthErn mEXico:<br />
a Zircon PErSPEctivE<br />
2-8 11:30 Galaz-Escanilla, Gonzalo*; Keppie, J. Duncan; Murphy,<br />
J. Brendan; Lee, James K.W.; Ortega-Rivera, Amabel:<br />
hiGh PrESSurE KLiPPE on thE activE WEStErn<br />
marGEn oF PanGEa durinG initiaL StaGES oF itS<br />
amaLGamation<br />
2-9 11:50 Ramos-Arias, Mario*; Ortega-Obregón, Carlos; Keppie,<br />
J. Duncan: GEochEmicaL, GEochronoLoGicaL and<br />
StructuraL connEctionS BEtWEEn thE WEStErn<br />
and cEntraL hiGh PrESSurE BELtS in acatLÁn<br />
comPLEX, SouthErn mÉXico: onE cycLE oF<br />
mEtamorPhic PEtroGEnESiS and EmPLacEmEnt<br />
durinG LatE dEvonian-miSSiSSiPPian SuBduction-<br />
EXtruSion on thE WEStErn marGin oF PanGEa<br />
2-10 12:10 Morales-Gámez, Miguel*; Keppie, J. Duncan; Dostal,<br />
Jaroslav; Lee, James K.W.; Ortega-Rivera, Amabel: PErmocarBoniFErouS<br />
dEFormationaL EvEntS in<br />
thE XayacatLÁn tyPE arEa, SouthErn mEXico<br />
aSSociatEd With miSSiSSiPPian EXtruSion<br />
and middLE PErmian tranStEnSionaL arc<br />
dEvELoPmEnt on thE WEStErn marGin oF PanGEa<br />
2-11 12:30 Kirsch, Moritz*; Keppie, J. Duncan; Murphy, J. Brendan;<br />
Lee, James K.W.: EmPLacEmEnt oF thE LatE<br />
carBoniFErouS–PErmian arc-rELatEd totoLtEPEc<br />
PLuton, acatLÁn comPLEX, SouthErn mEXico:<br />
SyntEctonic intruSion aLonG a mid-cruStaL<br />
tranSPrESSionaL ShEar ZonE<br />
SESSion no. 3<br />
T8. Lithosphere Stretching and Magmatism Leading to the Gulf<br />
<strong>of</strong> California<br />
08:30, Hotel Misión Juriquilla, Siglo XVIII<br />
Luca Ferrari, Arturo Martin-Barajas, and Joann Stock, Presiding<br />
08:30 introductory remarks<br />
3-1 08:35 Fletcher, John*: KEynotE: thE oPEninG oF thE GuLF<br />
oF caLiFornia: tEmPoraL vS SPatiaL variationS in<br />
riFt KinEmaticS<br />
3-2 09:05 Martín, Arturo*; González-Escobar, Mario; Fletcher M, John;<br />
Pacheco, Martín: continEntaL ruPturE dELayEd By<br />
SEdimEntation and LoW-anGLE normaL FauLtS in<br />
thE northErn GuLF oF caLiFornia: anaLySiS oF<br />
SEiSmic rEFLEction ProFiLES in thE tiBuron and<br />
dELFin BaSinS<br />
3-3 09:25 Darin, Michael H.*; Dorsey, Rebecca J.; Bennett, Scott E.K.;<br />
Oskin, Michael E.; Iriondo, Alex: LatE miocEnE EXtEnSion<br />
in thE SiErra Bacha, coaStaL Sonora, mEXico:<br />
imPLicationS For thE KinEmatic EvoLution oF thE<br />
Proto-GuLF oF caLiFornia<br />
3-4 09:45 Bennett, Scott E.K.*; Oskin, Michael E.; Iriondo, Alex:<br />
ProGrESSivE LocaLiZation oF dEXtraL ShEar in<br />
thE LatE Proto-GuLF oF caLiFornia<br />
42 <strong>2012</strong> GSA Abstracts with Programs<br />
3-5 10:05 Olguin Villa, Angel Enrique*; Stock, Joann M.; Vidal Solano,<br />
Jesus R.: maGnEtic StratiGraPhy oF PEraLKaLinE<br />
voLcaniSm in SiErra LiBrE, Sonora, mEXico<br />
10:25 Break<br />
3-6 10:45 Lonsdale, Peter*: KEynotE: thE hiStory and cauSES<br />
oF thE riFtinG, ShEarinG and SPrEadinG that<br />
oPEnEd thE mouth oF thE GuLF oF caLiFornia<br />
3-7 11:15 Ferrari, Luca*; Orozco-Esquivel, Teresa; López Martínez,<br />
Margarita; Duque, Jose; Bryan, Scott; Cerca, Mariano: 25<br />
miLLion yEarS to BrEaK a continEnt: EarLy to<br />
middLE miocEnE riFtinG and Syn-EXtEnSionaL<br />
maGmatiSm in thE SouthErn GuLF oF caLiFornia<br />
3-8 11:35 Bennett, Scott E.K.*; Oskin, Michael E.; Dorsey, Rebecca J.;<br />
Darin, Michael H.: rEconStructinG thE northErn<br />
GuLF oF caLiFornia-SaLton trouGh oBLiQuE riFt<br />
3-9 11:55 Mark, Chris*; Gupta, Sanjeev; Carter, Andrew; Mark, Darren F.;<br />
Gautheron, Cécile; Martin-Barajas, Arturo: tEmPoraL<br />
conStraintS on thE LandScaPE rESPonSE to<br />
riFtinG in thE LorEto rEGion oF BaJa caLiFornia<br />
Sur, mEXico<br />
3-10 12:15 Portillo-Pineda, Rodrigo*; Cerca, Mariano; Ferrari, Luca; Corti,<br />
Giacomo: anaLoGuE modELS oF thE SouthErn Part<br />
oF thE GuLF oF caLiFornia riFt<br />
3-11 12:35 Bryan, Scott*; Ferrari, Luca; Orozco-Esquivel, Teresa;<br />
López-Martínez, Margarita: PuLLinG aPart thE mid to<br />
LatE cEnoZoic maGmatic rEcord oF thE GuLF oF<br />
caLiFornia: no room For thE comondÚ arc<br />
SESSion no. 4<br />
T17. Environmental Geochemistry I<br />
08:30, Hotel Misión Juriquilla, Goyesco 1<br />
Mario Villalobos, Laura E. Beramendi-Orosco, Francisco Romero, Priyadarsi Roy,<br />
and Ofelia Morton, Presiding<br />
4-1 08:30 Kirby, Matthew E.*; Feakins, Sarah J.; Fantozzi, Joanna;<br />
Lund, Steve P.; Hiner, Christine: KEynotE: maKinG<br />
SEnSE oF thE LaSt dEGLaciation BEtWEEn<br />
cLimatoLoGicaLLy divErSE rEGionS: a viEW From<br />
LaKE ELSinorE in thE coaStaL SouthWESt unitEd<br />
StatES to thE intErior SouthWESt unitEd StatES<br />
and northErn mEXico<br />
4-2 09:00 Roy, Priyadarsi*; Quiroz, Jesús David; Chavez-Lara, Claudia;<br />
Lozano, Socorro; Perez, Ligia; Lozano, Rufino; Romero,<br />
Francisco: LatE PLEiStocEnE-hoLocEnE PaLEo-<br />
PrEciPitation rEcordS From thE dryLandS oF<br />
northErn mEXico<br />
4-3 09:20 Solleiro-Rebolledo, Elizabeth*; Sedov, Sergey; Cabadas,<br />
Héctor; Landa, Federico: GEochEmEStry oF caLichES<br />
oF northEaSt yucatan aS EvidEncES oF SoiL<br />
dEvELoPmEnt in KarStic GEoSyStEmS<br />
4-4 09:40 Gutierrez, Melida*: SPatiaL variaBiLity oF FE, mn, and<br />
Ba oF SEdimEntS Within thE chihuahuan dESErt,<br />
mEXico<br />
4-5 10:00 Del Rio Salas, R.*; Meza-Figueroa, D.; Ruiz, J.;<br />
De la O-Villanueva, M.; Moreno-Rodríguez, V.; Valencia<br />
Moreno, M.; Gómez-Alvarez, A.; Grijalva, T.; Campillo, A.;<br />
Paz-Moreno, F.: tracinG oF PoLLution SourcES in<br />
urBan duSt and SoiLS From hErmoSiLLo city<br />
(northWEStErn mEXico) uSinG PB iSotoPES<br />
4-6 10:20 Baumann, Francine*: EnvironmEntaL EXPoSurE<br />
to carcinoGEnic FiBErS duE to SErPEntinitE<br />
PavEd roadS in nEW caLEdonia: LESSonS in<br />
EnvironmEntaL EPidEmioLoGy and in PrEvEntion<br />
10:40 Break<br />
4-7 10:50 Martínez-Villegas, Nadia*; Castañón-Sandoval, Alan;<br />
Ramos-Leal, José Alfredo; Briones-Gallardo, Roberto;<br />
Avalos-Borja, Miguel; Razo-Flores, Elías; Villalobos, Mario:<br />
arSEnic moBiLity controL By SoLid caLcium
arSEnatES: an aLtErnativE mEchaniSm oF<br />
rEtEntion oF arSEnic in thE EnvironmEnt<br />
4-8 11:10 Hansen, Anne M.*; Mahé, Florence; Corzo-Juárez, Carlos:<br />
aSSESSinG mEtaLS rELEaSE From SEdimEntS in<br />
LaKES and rESErvoirS<br />
4-9 11:30 Villalobos, Mario*; Salazar-Camacho, Carlos; Antelo, Juan:<br />
thE imPortancE oF thE minEraL/WatEr intErFacE<br />
For controLLinG thE moBiLity oF ionS: macroand<br />
microScoPic invEStiGationS uniFyinG thE<br />
adSorPtion BEhavior oF thE FE oXyhydroXidES<br />
GoEthitE and FErrihydritE<br />
4-10 11:50 Aguilar-Carrillo, Javier*; Clarke, Cathy E.; Roychoudhury,<br />
Alakendra N.: dryinG inducEd acidity at thE minEraL-<br />
WatEr intErFacE: atr-Ftir SPEctroScoPy<br />
4-11 12:10 Aguirre-Gómez, Arturo; Guzmán-Rangel, Georgina*: EFFEct<br />
oF chEmicaL-aGronomic trEatmEntS on thE<br />
EXtractaBLE and FrEE cd, cu, PB and Zn LEvELS<br />
SuitaBLE For rEmEdiatinG minE taiLinGS and<br />
PoLLutEd SoiLS<br />
4-12 12:30 Beramendi-Orosco, Laura E.*; Gonzalez-Hernandez, Galia:<br />
radiocarBon concEntration in Short-LivEd<br />
hErBacEouS PLantS aS indicator oF FoSSiL co2 EmiSSionS in urBan rEGionS<br />
12:50 concluding remarks<br />
PoStEr<br />
tEchnicaL SESSionS<br />
SESSion no. 5<br />
Geophysics/Seismology (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
5-1 11 Wamalwa, Antony Munika*; Mickus, Kevin; Serpa, Laura; Doser,<br />
Diane: anaLySiS oF Gravity and maGnEtotELLuric<br />
data From thE coSo GEothErmaL FiELd, SouthEaSt<br />
caLiFornia<br />
5-2 12 Hussein, Musa; Mickus, Kevin*; Serpa, Laura: curiE dEPth<br />
anaLySiS oF dEath vaLLEy and SurroundinG rEGion,<br />
caLiFornia<br />
5-3 13 León Loya, Rodrigo Alejandro*; Gómez González, Juan Martín:<br />
intraPLatE micro-SEiSmicity in thE cEntraL Part oF<br />
thE SiErra madrE oriEntaL, mEXico<br />
SESSion no. 6<br />
Paleontology (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
6-1 14 Beraldi-Campesi, Hugo*: 3d rEconStruction oF mELoSira<br />
huEPacEnSiS, a FrEShWatEr crEtacEouS diatom<br />
6-2 15 Riquelme, Francisco*; Stojan<strong>of</strong>f, Vivian; Tappero, Ryan; Bennett,<br />
Steve; Acerbo, Alvin; Northrup, Paul; Siddons, Peter; Moreno, Abel;<br />
Ruvalcaba-Sil, José Luis; Alvarado-Ortega, Jesús: Synchrotron-<br />
BaSEd tEchniQuES: thE moLEcuLar taPhonomy oF<br />
inSEctS traPPEd in amBEr From thE EarLy miocEnE<br />
chiaPaS LaGErStÄttE<br />
6-3 16 Jimenez-Hidalgo, Eduardo*; Campos-Camacho, Mario Alberto;<br />
Guerrero-Arenas, Rosalía; Cabrera-Perez, Lucia: thE LatE<br />
PLEiStocEnE EQuidS From northWEStErn oaXaca,<br />
SouthErn mEXico<br />
SESSION NO. 7<br />
6-4 17 Guerrero-Arenas, Rosalía*; Jimenez-Hidalgo, Eduardo;<br />
García-Barrera, Pedro: a PrELiminary intErPrEtation oF<br />
thE taPhonomy and PaLEoEnvironmEntaL conditionS<br />
oF a LatE PLEiStocEnE non-marinE invErtEBratE and<br />
microvErtEBratE aSSEmBLaGE in oaXaca, SouthErn<br />
mEXico<br />
6-5 18 Omaña, Lourdes*; Buitron, Blanca E.; Pantoja-Alor, Jerjes: a<br />
ForaminiFEra and GaStroPod aSSEmBLaGE From<br />
thE maL PaSo Formation in thE chumBÍtaro rEGion,<br />
GuErrEro, South mEXico: BioStratiGraPhicaL,<br />
PaLEoEcoLoGicaL and PaLEoBioGEoGraPhicaL<br />
SiGniFicancE<br />
6-6 19 Ramírez-Garza, Blanca Margarita*; González-Arreola, Celestina:<br />
BarrEmian ammonitE BioStratiGraPhy From thE San<br />
LucaS Formation in thE huEtamo rEGion, michoacÁn,<br />
mEXico<br />
6-7 20 Buitron, Blanca E.*: GaStroPodS, BioStratiGraPhy, and<br />
PaLEoGEoGraPhy, LoWEr crEtacEouS, in a rudiSt-<br />
BEarinG Formation, JaLiSco, mEXico<br />
6-8 21 Oviedo, Angelica*; Dávila, Elizabeth; Chacón, Enrique; Franco-Rubio,<br />
Miguel; Estrada, Jesus; Ortiz, Guillermo; Velasco, Gladys; Torres,<br />
Aidee; Zavala, Loreto: PaLEontoLoGy coLLEction at thE<br />
rayEnari muSEum around LaGuna dE BuStiLLoS,<br />
chihuahua, mEXico<br />
6-9 22 Guerrero-Arenas, Rosalía*; Gonzalez-Rodriguez, Katia Adriana:<br />
StratEGiES For tEachinG GEoLoGicaL and<br />
PaLEontoLoGicaL ProcESSES and EvEntS occurrEd<br />
in Earth hiStory<br />
SESSion no. 7<br />
Stratigraphy/Sedimentology (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
7-1 23 Morgan, George J.*; Morgan, J.R.: GarnEt WaSh Formation<br />
and thE imPEriaL GrouP: a nEW LooK at oLd ProBLEmS,<br />
coyotE mountainS, WEStErn SaLton trouGh, imPEriaL<br />
county, SouthErn caLiFornia, uSa<br />
7-2 24 Amaya-Martínez, Ricardo*; Premo, Wayne R.; Poole, Forrest G.:<br />
dEPoSitionaL SEttinG and SourcE oF dEtritaL ZirconS<br />
in thE PErmian mina mÉXico ForEdEEP in Sonora,<br />
mEXico<br />
7-3 25 Lindner, Philip*; Riggs, Nancy; González-León, Carlos M.:<br />
ProvEnancE Study oF LatESt PaLEoZoic to mESoZoic<br />
EL antimonio GrouP, Sonora, mEXico, and imPLicationS<br />
For tEctonic EvoLution oF SouthWESt LaurEntia<br />
7-4 26 Franco-Rubio, Miguel*; Oviedo, Angelica: StratiGraPhy oF thE<br />
cuchiLLo Formation in chihuahua, mÉXico<br />
7-5 27 Escalona-Alcázar, Felipe de Jesús*; García-Sandoval,<br />
Perla; Escobedo-Arellano, Bianney; Carrillo-Castillo, Carlos;<br />
Castillo-Félix, Brenda; Solari, Luigi; Núñez-Peña, Ernesto Patricio;<br />
García y Barragán, Juan Carlos; Bluhm-Gutiérrez, Jorge;<br />
Esparza-Martínez, Alicia: LithoLoGic and StructuraL<br />
charactEriSticS oF thE PaLEocEnE-EocEnE ZacatEcaS<br />
conGLomEratE, cEntraL mEXico<br />
7-7 29 Escobar, Elia*; Urrutia-Fucugauchi, Jaime: thE carBonatE<br />
PaLEoGEnE SEQuEncE oF thE chicXuLuB imPact BaSin,<br />
yucatan PLatForm – yaXcoPoiL-1 BorEhoLE<br />
7-8 30 Stockton, David R.*: GLaciation in thE WhitE mountainS,<br />
cottonWood PLatEau icE FiELd, inyo county, EaStErn<br />
caLiFornia<br />
7-9 31 Malo<strong>of</strong>, David*; Lopez, Roberto; Martinez, Fernando; Torres, Ricardo;<br />
Franco, Miguel: LithoLoGicaL and StratiGraPhicaL data<br />
WarEhouSE inFormation SyStEm<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 43
SESSION NO. 8<br />
SESSion no. 8<br />
Volcanology (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
8-1 32 Ort, Michael H.*; Unema, Joel A.; Larsen, Jessica F.; Schaefer,<br />
Janet R.: comPLEX WatEr-maGma intEraction durinG thE<br />
2008 EruPtion at oKmoK voLcano, aLaSKa<br />
8-2 33 Rodriguez-Sedano, L.A.*; Sarocchi, Damiano; Bartali, Roberto;<br />
Montenegro, Anibal: Lahar dEPoSitS on La LumBrE ravinE<br />
rELatEd to thE GrEat 1913 PLinian EruPtion oF voLcan<br />
dE coLima mEXico<br />
8-3 34 Caballero, Lizeth*; Sarocchi, Damiano; Borselli, Lorenzo:<br />
QuantitativE cLaSt ShaPE anaLySiS aPPLiEd to<br />
intErnaL dynamicS oF dEBriS FLoWS<br />
8-4 35 Zimmer, Brian*; Liutkus, Cynthia; Carmichael, Sarah; Richmond,<br />
Brian; Hewitt, Seth; Hatala, Kevin; Harcourt-Smith, William E.H.;<br />
Gordon, Adam; Mana, Sara; Brett, Jim: a SnaPShot in timE:<br />
dEtErmininG thE aGE, EnvironmEnt, and SociaL<br />
StructurES oF EarLy homo SaPiEnS uSinG tracE<br />
FoSSiLS in voLcanicLaStic rocKS at thE EnGarE SEro<br />
FootPrint SitE, LaKE natron, tanZania<br />
8-5 36 Aguirre-Díaz, Gerardo J.*; Tristán-González, Margarito;<br />
Labarthe-Hernández, Guillermo; Aguillón-Robles, Alfredo;<br />
Nieto-Obregón, Jorge; López-Martínez, Margarita; Bellon, Hervé:<br />
thE PEÑa dE BErnaL naturaL monumEnt oF<br />
QuErEtaro, mEXico<br />
SESSion no. 9<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangea in the <strong>America</strong>s (Posters)<br />
(IGCP 597 (Origin and Evolution <strong>of</strong> Pangea) and IGCP 574 (Bending<br />
and Bent Orogens, Continental Ribbons))<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
9-1 37 Estrada-Carmona, Juliana*; Weber, Bodo; Martens, Uwe K.;<br />
López-Martínez, Margarita: PEtroGEnESiS oF ordovician<br />
maGmatic rocKS in thE SouthErn chiaPaS maSSiF and<br />
rELationS With thE EarLy PaLEoZoic maGmatic BELtS<br />
oF northWEStErn GondWana<br />
SESSion no. 10<br />
T8. Lithosphere Stretching and Magmatism Leading to the Gulf<br />
<strong>of</strong> California (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
10-1 38 Skinner, Lisa A.*; Umhoefer, Paul J.; Kluesner, Jared W.; Nava,<br />
Richard: GiS PLatE tEctonic rEconStruction oF thE<br />
SouthErn GuLF oF caLiFornia oBLiQuE riFt<br />
10-2 39 Skinner, Steven*; Stock, Joann; Martin-Barajas, Arturo:<br />
charactEriZation oF thE tuFF oF San FELiPE on iSLa<br />
anGEL dE La Guarda, BaJa caLiFornia, mEXico<br />
10-3 40 Figueroa-Albornoz, Leonardo*; Mortera-Gutierrez, Carlos<br />
A.; Escobar-Briones, Elva; Godfroy, Anne; Bandy, William L.;<br />
Ponce-Núñez, Francisco; Taran, Yuri A.; Bernard-Romero, Ruben A.:<br />
coLd SEEPS in thE Sonora marGin BaSin at GuaymaS<br />
BaSin, GuLF oF caLiFornia, mEXico<br />
10-4 41 Duque, Jose*; Ferrari, Luca; Orozco-Esquivel, Teresa;<br />
López Martínez, Margarita; Lonsdale, Peter: raPid EXhumation<br />
oF EarLy to middLE miocEnE intruSivE rocKS in thE<br />
SouthErn GuLF oF caLiFornia: thE EarLy StaGES oF<br />
continEntaL BrEaKuP<br />
44 <strong>2012</strong> GSA Abstracts with Programs<br />
SESSion no. 11<br />
T9. What Fossil Ages and Distributions Tell Us about the History <strong>of</strong><br />
the Ancient Gulf <strong>of</strong> California (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
11-1 42 Leyva Valencia, Ignacio*; Cruz Hernández, Pedro; Lluch Cota,<br />
Daniel Bernardo; Rojas Posadas, Delia Irene; Rugh, N. Scott;<br />
Correa Ramírez, Miguel Mauricio: PhyLoGEnEtic<br />
rELationShiPS oF GEoducK cLamS PANOPEA GENEROSA<br />
and P. GLOBOSA and thEir anciEnt and EXtant<br />
diStriBution in BaJa caLiFornia and thE GuLF oF<br />
caLiFornia<br />
11-2 43 Ramírez-Arriaga, Elia*; Prámparo, Mercedes B.; Guerstein,<br />
G. Raquel; Martínez-Hernández, Enrique; Galván-Escobedo, Iris G.;<br />
Corona-Esquivel, Rodolfo; Marmolejo-Rodríguez, A.J.: marinE<br />
and continEntaL aSSEmBLaGES From San GrEGorio<br />
Formation (LatE oLiGocEnE – EarLy miocEnE), La<br />
Bocana rEGion, BaJa caLiFornia Sur, mEXico<br />
SESSion no. 12<br />
T11. Developments in Geophysical Investigations <strong>of</strong> Volcano<br />
Hydrothermal Systems: Exploration and Hazards (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
12-1 44 Martínez Reyes, José*; Vera Romero, Ivan; Estrada Jaramillo,<br />
Meliton; Nuñez Gonzalez, José; Lopez Andrade, Xicotencatl;<br />
Roldan Ahumada, Ma. Claudia; Peña, Rafael: GEothErmaL<br />
ProSPEction oF thE ciÉnEGa oF chaPaLa, michoacan,<br />
mÉXico<br />
12-2 45 Bouligand, Claire*; Glen, Jonathan; McPhee, Darcy K.: EStimatinG<br />
thE GEomEtry and EXtEnt oF aLtEration in<br />
hydrothErmaL arEaS oF yELLoWStonE nationaL ParK<br />
BaSEd on hiGh-rESoLution maGnEtic SurvEyS<br />
12-3 46 Hurwitz, Shaul*; Vandemeulebrouck, Jean; Sohn, Robert A.; Rudolph,<br />
Maxwell L.; Johnston, Malcolm J.S.; Karlstrom, Leif: GEodEtic,<br />
SEiSmic and acouStic mEaSurEmEntS oF EruPtionS at<br />
LonE Star GEySEr, yELLoWStonE nationaL ParK, uSa<br />
SESSion no. 13<br />
T17. Environmental Geochemistry (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
13-1 47 Gutierrez, Melida; Mickus, Kevin; Johnson, Elias*: utiLity oF<br />
GEoEyE in aSSESSinG riParian vEGEtation aLonG thE<br />
rio conchoS, mEXico<br />
13-2 48 Charles-Polo, Marcela*; Roy, Priyadarsi; Sanchez, Jóse Luis; Lozano,<br />
Rufino; Pi-Puig, Teresa; Romero, Francisco: a LatE QuatErnary<br />
GEochEmicaL rEcord From thE PaLEoaKE La SaLada,<br />
SouthErn chihuahua dESErt, mÉXico<br />
13-3 49 Santhiya, G.; Lakshumanan, C.; Jonathan, M.P*; Roy, P.D:<br />
EvaLuation oF coaStaL BEach SEdimEntS in chEnnai<br />
coaSt, SE coaSt oF india<br />
13-4 50 Tovar, Rosa E.*; Sedov, Sergey: StaBLE carBon<br />
iSotoPE SiGnaturES From PaLEoSoL humuS For<br />
rEconStructinG LatE PLEiStocEnE EnvironmEntS oF<br />
aXamiLPa, PuEBLa<br />
13-5 51 Cruz-Ortiz, Norma L.*; Audifred-Valdes, Alicia I.; Carrillo-Chávez,<br />
Alejandro: hEavy mEtaLS diStriBution in thE maconi<br />
mininG ZonE, QuErEtaro<br />
13-6 52 Morton-Bermea, Ofelia*; Hernández-Álvarez, Elizabeth;<br />
Amador-Muñoz, Omar; Villalobos-Pietrini, Rafael; Murillo-Tovar,<br />
Mario Alfonso; Hernández-Mena, Leonel; García-Arriola,
Maria Elena: hEavy mEtaL concEntration oF Pm2.5 in thE<br />
atmoSPhEric EnvironmEnt oF mEtroPoLitan ZonE oF<br />
mEXico city<br />
13-7 53 Miranda-Aviles, Raul*; Puy-Alquiza, Maria Jesus; Pérez-Arvizu,<br />
Ofelia; Casillas-Jimenez, Gabriela: anthroPoGEnic mEtaL<br />
contEnt and SEdimEntoLoGy oF ovErBanK SEdimEntS<br />
From thE mininG diStrict oF GuanaJuato, mEXico<br />
13-8 54 Salas-Megchun, Erik F.*; Ayala-De la Portilla, Elihu H.; Gerke,<br />
Tammie L.; Carrillo-Chávez, Alejandro; Levresse, Gilles:<br />
PrELiminary EnvironmEntaL GEochEmicaL EvaLuation<br />
oF thE minE WaStE matEriaL at thE Xichu mininG<br />
diStrict, SiErra Gorda naturaL rESErvE, northEaSt<br />
GuanaJuato StatE<br />
13-9 55 Pérez, Isabel*; Romero, Francisco: maGnEtic SuScEPtiBiLity<br />
and ELEctric conductivity aS a ProXy oF SoiL hEavy<br />
mEtaL PoLution From mininG and mEtaLLurGicaL<br />
arEaS<br />
13-10 56 Israde-Alcántara, Isabel*; Verduzco Cedeño, Luis Alberto;<br />
Carrillo-Chávez, Alejandro: GEoLoGicaL charactEriZation<br />
and EnvironmEntaL imPLicationS oF thE morELia dumP,<br />
10 yEarS LatEr<br />
aFtErnoon oraL<br />
tEchnicaL SESSionS<br />
SESSion no. 14<br />
S1. Amalgamation and Breakup <strong>of</strong> Pangea in the <strong>America</strong>s II (IGCP<br />
597 (Origin and Evolution <strong>of</strong> Pangea) and IGCP 574 (Bending and<br />
Bent Orogens, Continental Ribbons))<br />
14:30, Hotel Misión Juriquilla, Juarez 3<br />
J. Brendan Murphy, Jarda Dostal, and R. Damian Nance, Presiding<br />
14-1 14:30 Weber, Bodo*; Scherer, Erik E.; Martens, Uwe K.; Mezger,<br />
Klaus: ProvEnancE and EvoLution oF LoWEr<br />
PaLEoZoic rocKS From yucatan: nEW iSotoPic<br />
(hF, nd) and aGE EvidEncE<br />
14-2 14:50 Helbig, Maria*; Keppie, J. Duncan; Murphy, J. Brendan;<br />
Solari, Luigi: thE triaSSic–JuraSSic ayÚ comPLEX,<br />
SouthErn mEXico: dErivation From thE WEStErn<br />
marGin oF PanGEa-a<br />
14-3 15:10 Ortega-Obregón, Carlos*; Solari, Luigi; Ortega-Gutiérrez,<br />
Fernando; Elias-Herrera, Mariano: arc-rELatEd<br />
intruSionS in thE oaXacan comPLEX: EvidEncE<br />
For EarLy to LatE PErmian PaciFic PLatE<br />
SuBduction BEnEath thE WESt cEntraL marGin<br />
oF GondWana<br />
14-4 15:30 Keppie, John Duncan*; Galaz-Escanilla, Gonzalo; Helbig,<br />
Maria; Kirsch, Moritz; Dostal, Jaroslav; Murphy, J. Brendan;<br />
Nance, R. Damian: mEXican marGin oF PanGÆa: LatE<br />
PaLEoZoic tEctonic SWitchinG FoLLoWEd By<br />
EarLy mESoZoic ShiFt From iSLand to continEntaL<br />
arc durinG PanGÆa BrEaKuP<br />
14-5 15:50 Keppie, D. Fraser*; Keppie, J. Duncan: an aLtErnativE<br />
rEconStruction oF PanGEa a For middLE amErica<br />
With Both thE chortiS and yucatan BLocKS in thE<br />
GuLF oF mEXico<br />
SESSion no. 15<br />
T9. What Fossil Ages and Distributions Tell Us about the History <strong>of</strong><br />
the Ancient Gulf <strong>of</strong> California<br />
14:30, Hotel Misión Juriquilla, Siglo XVIII<br />
Judith Smith, Ana Luisa Carreño, and Javier Helenes, Presiding<br />
15-1 14:30 Helenes, Javier*; Carreño, A. Luisa: KEynotE: nEoGEnE<br />
microPaLEontoLoGy and EvoLution oF thE<br />
northErn GuLF oF caLiFornia<br />
SESSION NO. 17<br />
15-2 14:50 López-Pérez, Ramón Andrés*: thE GuLF oF caLiFornia<br />
and thE oriGin oF thE modErn EaStErn PaciFic<br />
coraL Fauna<br />
15-3 15:10 Dolby, Greer A.*; Ellingson, Ryan; Day, Paul P.; Jacobs,<br />
David K.: hoW oriGination oF modErn FiSh<br />
LinEaGES may rEFLEct timinG oF WhEn thE GuLF oF<br />
caLiFornia oPEnEd: a nEW BioLoGicaL aPProach<br />
15-4 15:30 Bennett, Scott E.K.*; Oskin, Michael E.; Dorsey, Rebecca J.;<br />
Iriondo, Alex: voLcanic rocKS and microFoSSiLS<br />
conFirm a LatE miocEnE aGE For marinE Strata<br />
on iSLa tiBuron, GuLF oF caLiFornia<br />
15-5 15:50 Smith, Judith Terry*: tErtiary-cariBBEan moLLuSKS<br />
and thE anciEnt GuLF oF caLiFornia<br />
15-6 16:10 Vera, Diego*; González, Gerardo; Nava, Enrique: marinE<br />
invErtEBratES PaLEontoLoGy oF thE San Juan<br />
mEmBEr (EL ciEn Formation), BaJa caLiFornia Sur,<br />
mEXico<br />
15-7 16:30 Morales-Ortega, Priscila*; González-Barba, Gerardo;<br />
Nava-Sánchez, Enrique H.: PaLEontoLoGicaL<br />
corrELation oF macroinvErtEBratES in thE<br />
BatEQuE and tEPEtatE FormationS (PaLEocEnE-<br />
EocEnE) in WEStErn BaJa caLiFornia Sur, mEXico<br />
SESSion no. 16<br />
T13. Heterogeneous Geologic Formations: Modeling Spatial<br />
Variability<br />
15:00, Hotel Misión Juriquilla, Goyesco 1<br />
Eric Morales Casique and Martín Díaz Viera, Presiding<br />
16-1 15:00 Franco-Estrada, Berenice*; Pinales-Munguía, Adán;<br />
Estrada-Gutiérrez, Guadalupe; Villalba, María de Lourdes;<br />
Franco-Rubio, Miguel: mathEmaticaL modELinG oF<br />
chihuahua-SacramEnto, taBaLaoPa-aLdama<br />
and EL SauZ-EnciniLLaS aQuiFErS uSinG viSuaL<br />
modFLoW<br />
16-2 15:20 Casar-Gonzalez, Ricardo*; Diaz-Viera, Martin Alberto;<br />
Mendez-Venegas, Javier; Hernandez-Maldonado, Victor;<br />
Checa-Rojas, Paola: thE roLE oF GEoStatiSticS in<br />
GEoLoGicaL and PEtroPhySicaL oiL rESErvoir<br />
modELinG<br />
16-3 15:40 Morales-Casique, Eric*; Medina, Priscila; Escolero-Fuentes,<br />
Oscar; Hernandez-Espriú, Antonio: modELinG SPatiaL<br />
diStriBution oF hydroFaciES uSinG tranSition<br />
ProBaBiLitiES<br />
16-4 16:00 Diaz-Viera, Martin Alberto*; Mendez-Venegas, Javier;<br />
Hernandez-Maldonado, Victor: SPatiaL StochaStic<br />
modELS aS a PoWErFuL tooL For uncErtainty<br />
modELinG in hEtEroGEnEouS rESErvoir<br />
FormationS<br />
16-5 16:20 Medina, Priscila*; Morales, Eric: GEoStatiSticaL anaLySiS<br />
oF LithoFaciES in thE aQuiFEr oF mEXico city<br />
SESSion no. 17<br />
T17. Environmental Geochemistry II<br />
14:30, Hotel Misión Juriquilla, Goyesco 1<br />
Mario Villalobos, Laura E. Beramendi-Orosco, Francisco Romero, Priyadarsi Roy,<br />
and Ofelia Morton, Presiding<br />
17-1 14:30 Hudson-Edwards, Karen A.*; Jamieson, Heather E.;<br />
Lottermoser, Bernd G.: KEynotE: minE WaStES: PaSt,<br />
PrESEnt, FuturE<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 45
SESSION NO. 18<br />
SESSion no. 18<br />
T1. Silicic Volcanism I<br />
Friday, 30 march <strong>2012</strong><br />
morninG oraL<br />
tEchnicaL SESSionS<br />
08:30, Hotel Misión Juriquilla, Juarez 3<br />
Cathy J. Busby and Graham Andrews, Presiding<br />
18-1 08:30 Arciniega-Ceballos, Alejandra*; Dawson, P.; Chouet, B.:<br />
SourcE charactEriZation oF LP SEiSmicity at<br />
PoPocatEPEtL voLcano, mEXico<br />
18-2 08:50 Borselli, Lorenzo*; Sarocchi, Damiano: FLanK coLLaPSE<br />
and nEW rELativE inStaBiLity anaLySiS<br />
tEchniQuES aPPLiEd to voLcÁn dE coLima and<br />
mt. St. hELEnS<br />
18-3 09:10 Morgan, J.R.*; Morgan, George J.; Pecha, Mark: u/PB datinG<br />
oF tuFFS From thE aLvErSon voLcanicS in thE<br />
FoSSiL canyon and PaintEd GorGE arEaS oF thE<br />
coyotE mountainS, WEStErn SaLton trouGh,<br />
caLiFornia, uSa<br />
18-4 09:30 Glazner, Allen F.*; Bartley, John M.; Law, Bryan; Coleman,<br />
Drew S.: LaddEr diKES, craZy GEochEmiStry,<br />
and LiQuid immiSciBiLity(?) in othErWiSE SanE<br />
GranodioritES<br />
18-5 09:50 Carrasco-Núñez, Gerardo*; Willcox, Christopher; Dávila-Harris,<br />
Pablo; Branney, Michael: EXPLoSivE EruPtion hiStory<br />
and StructurE oF a LarGE SiLicic PiEcEmEaL<br />
caLdEra: LoS humEroS, cEntraL mEXico<br />
18-6 10:10 Martiny, Barbara M.*; Morán-Zenteno, Dante J.; de Silva,<br />
Shanaka; Zuñiga-Lagunes, Lilibeth; Flores-Huerta, Diana;<br />
Solari, Luigi; Martínez-López, Margarita; Roberge, Julie;<br />
González-Torres, Enrique A.: ProGrESSivE<br />
conStruction oF a BathoLith undEr thE<br />
tiLZaPotLa-taXco rEGion, SouthErn mEXico,<br />
in LatE EocEnE timE<br />
10:30 Break<br />
18-7 10:50 McDowell, Fred W.*; McIntosh, William: KEynotE: timinG<br />
oF intEnSE maGmatic EPiSodES in thE northErn<br />
and cEntraL SiErra madrE occidEntaL, WEStErn<br />
mEXico<br />
18-8 11:20 Henry, Christopher D.*; McIntosh, William C.; McDowell,<br />
Fred W.; Lipman, Peter W.; Chapin, Charles E.: thE<br />
cEnoZoic iGnimBritE FLarEuP in WEStErn north<br />
amErica: diStriBution, timinG, voLumE, and<br />
tEctonic rELationS<br />
18-9 11:40 Miller, Jonathan*; Ryan, Mark; Miller, Calvin; Claiborne,<br />
Lily Lowery; Johnson, Brent; Colombini, Lindy L.S.; Wooden,<br />
Joseph L.; Walker, Barry A. Jr.; Lidzbarski, Marsha: inSiGhtS<br />
into thE GroWth oF SiLicic maGma SyStEmS<br />
From thE GEochronoLoGic, ELEmEntaL, and<br />
iSotoPic rEcord oF Zircon in miocEnE PLutonS<br />
and voLcanic rocKS oF thE coLorado rivEr<br />
EXtEnSionaL corridor, nEvada<br />
18-10 12:00 Miller, Calvin F.*; Padilla, Abraham De Jesus; Pamukcu, Ayla;<br />
Carley, Tamara L.; Claiborne, Lily L.; Flanagan, Daniel M.;<br />
Gualda, Guilherme A.R.; Wooden, Joseph L.; Miller, Jonathan;<br />
Lidzbarski, Marsha: rEinviGoratinG StaGnant SiLicic<br />
maGma SyStEmS: voLcanic and PLutonic viEWS<br />
46 <strong>2012</strong> GSA Abstracts with Programs<br />
18-11 12:20 Roberge, Julie*; de Silva, Shanaka; Viramonte, Jose G.;<br />
Arnosio, Marcelo; Beccio, Raúl: maGma dynamicS oF thE<br />
cErro BLanco voLcanic comPLEX, arGEntina,<br />
BaSEd on voLatiLES, maJor and tracE ELEmEntS<br />
in mELt incLuSionS<br />
SESSion no. 19<br />
T3. Convergent Margin <strong>of</strong> Western Pangea: Triassic-Jurassic<br />
Magmatism, Sedimentation, and Tectonics from Colombia to Oregon<br />
08:30, Hotel Misión Juriquilla, Goyesco 1<br />
Timothy F. Lawton, José Rafael Barboza-Gudiño, and Roberto Molina-Garza,<br />
Presiding<br />
08:30 introductory remarks<br />
19-1 08:40 Franco-Rubio, Miguel*; Caballero-Miranda, Cecilia I.;<br />
Alva-Valdivia, Luis M.; Oviedo, Angelica; Urrutia-Fucugauchi,<br />
Jaime; Martínez-Reyes, Fernando; Torres-Knight, Ricardo;<br />
Riggs, Nancy R.; González-León, Carlos M.; López-Santillán,<br />
Roberto: PErmian maGmatic arc rELatEd to thE<br />
ouachita SuturE ZonE in chihuahua, mEXico<br />
19-2 09:00 Barboza, Rafael*; Zavala, Aurora: mEXican LatE<br />
PaLEoZoic-EarLy mESoZoic rEmnant BaSin at<br />
thE WEStErnmoSt cuLmination oF thE ouachitamarathon<br />
BELt<br />
19-3 09:20 Riggs, Nancy R.*; Howell, Evan R.; Oberling, Zachary A.;<br />
Barth, Andrew P.; Walker, J. Douglas: aSSESSinG SourcES<br />
oF ZirconS in uPPEr triaSSic SEdimEntary Strata<br />
and thEir rELation to thE cordiLLEran maGmatic<br />
arc<br />
19-4 09:40 Bayona, Germán*; Cardona, Agustin; Vásquez, Mónica;<br />
Montes, Camilo: SuBduction to riFt-rELatEd<br />
EvoLution oF triaSSic and JuraSSic rocKS in thE<br />
northErn andES<br />
19-5 10:00 Ortega-Flores, Berlaine*; Solari, Luigi; Ortega-Obregón, Carlos:<br />
dEtritaL Zircon u-PB GEochronoLoGy oF thE<br />
toLiman SEQuEncES, cEntraL mEXico: PoSSiBLE<br />
ProvEnancE SourcES<br />
10:20 Break<br />
19-6 10:40 Lawton, Timothy F.*; Gilbert, John C.; Amato, Jeffrey M.: aGE<br />
oF thE JuraSSic arc SyStEm in SouthErn ariZona<br />
19-7 11:00 Molina Garza, Roberto*: arE thErE too many riFt<br />
BaSinS in mEXico?<br />
19-8 11:20 Silva-Tamayo, Juan Carlos*; Cardona, Agustin; Bayona,<br />
Germán; Pardo, Andres; Sial, Alcides N.; Valencia,<br />
Victor; Montes, Camilo; Alvarez, Alejandtra; Jimenez,<br />
Harold: muLti-ProXy aGE conStrainS oF LoWEr<br />
crEtacEouS marinE EXtEnSion and ocEanic<br />
anoXia in northErn coLomBia: PaLEoGEoGraPhic<br />
imPLicationS<br />
19-9 11:40 Zapata, Sebastian*; Cardona, Agustin; Bayona, Germán;<br />
Bustamante, Camilo; Mora, Andrés; Silva-Tamayo, Juan Carlos;<br />
Valencia, Victor: tracinG maJor chanGES in middLE<br />
mESoZoic PLatE convErGEncE in thE northErn<br />
andES: inSiGhtS From thE JuraSSic maGmatic<br />
rEcord oF SouthErn coLomBia<br />
19-10 12:00 Pignotta, Ge<strong>of</strong>frey*; Ostrenga, Will; Nushart, Nathan: timE<br />
tranSGrESSivE Strain rEcordEd JuraSSic and<br />
EarLy crEtacEouS PLutonS oF thE cEntraL<br />
coaSt PLutonic comPLEX, BELLa cooLa, BritiSh<br />
coLumBia, canada<br />
19-11 12:20 Castonguay, Samuel R.*; Miller, Marli Bryant:<br />
imBricatE thruSt FauLtS and tiGht FoLdS in<br />
nEoProtEroZoic FormationS oF thE virGin<br />
SPrinG-amarGoSa chaoS oF SouthErn dEath<br />
vaLLEy, ca
SESSion no. 20<br />
T10. The Caribbean Plate and its Geologic Connections with<br />
North and South <strong>America</strong><br />
08:30, Hotel Misión Juriquilla, Siglo XVIII<br />
Luigi Solari, Uwe Martens, and James Pindell, Presiding<br />
20-1 08:30 Elias-Herrera, Mariano*; Ortega-Gutiérrez, Fernando;<br />
Macías Romo, Consuelo; Sánchez-Zavala, José Luis;<br />
Solari, Luigi; Martínez-Hernández, Enrique: tEctonic<br />
imPLicationS oF La montaÑa GrouP: a nEW LoWEr<br />
crEtacEouS StratiGraPhic unit in thE PuZZLinG<br />
truncatEd continEntaL marGin oF SouthErn<br />
mEXico<br />
20-2 08:50 Witt, Cesar*; Rangin, Claude; Carter, Andrew; Brichau,<br />
Stephanie: thE tranSPrESSivE LEFt-LatEraL SiErra<br />
madrE dE chiaPaS and itS BuriEd Front in thE<br />
taBaSco PLain (South mEXico)<br />
20-3 09:10 Torres de León, Rafael*; Solari, Luigi; Ortega-Gutiérrez,<br />
Fernando; Martens, Uwe: thE chortÍS BLocK -<br />
SouthWEStErn mEXico connEction durinG<br />
thE LatE mESoZoic - cEnoZoic: u-PB Zircon<br />
conStraintS<br />
20-4 09:30 Molina Garza, Roberto*; Rogers, Rob; van Hinsbergen,<br />
Douwe: PaLEomaGnEtiSm oF thE vaLLE anGELES<br />
GrouP, honduraS, rEviSitEd: EvidEncE oF LarGE<br />
maGnitud cEnoZoic rotation<br />
20-5 09:50 Guzman-Speziale, Marco*: SEiSmoLoGicaL conStraintS<br />
on thE motion oF thE cEntraL amErica ForEarc<br />
SLivEr<br />
20-6 10:10 Cardona, Agustin*; Montes, Camilo; Bayona, Germán;<br />
Jaramillo, Samuel; Vanegas, Jakeline; Silva-Tamayo,<br />
Juan Carlos; Valencia, Victor; Quiroz, Luis I.; Pardo, Andres;<br />
Weber, Marion: rEadinG thE FraGmEntary rEcord<br />
oF LatE crEtacEouS to EocEnE arc-continEnt<br />
coLLiSion and SuBduction initiation in thE<br />
SouthErn marGin oF thE cariBBEan<br />
10:30 Break<br />
20-7 10:50 Quiroz, Luis I.*; Buatois, Luis A.; Mangano, Maria Gabriela;<br />
Cardona, Agustin; Montes, Camilo; Silva-Tamayo, Juan Carlos;<br />
Jaramillo, Carlos: miocEnE dELtaic SEdimEntation in<br />
thE FaLcon BaSin and itS rELation to cLimatE and<br />
cariBBEan tEctonicS<br />
20-8 11:10 Lara, Mario*; Cardona, Agustin; Valencia, Victor; Weber,<br />
Marion; De la Parra, Felipe; Ibanez, Mauricio; López-Martínez,<br />
Margarita; Montes, Camilo: middLE miocEnE voLcaniSm<br />
in thE South cariBBEan dEFormEd BELt (Sinu BELt,<br />
northErn coLomBia): PEtrotEctonic hyPothESiS<br />
20-9 11:30 Montenegro, Omar Camilo*; Bayona, Germán; Ojeda,<br />
Carolina; Ayala, Carolina; Cardona, Agustin; Valencia, Victor:<br />
intraPLatE uPLiFt and BaSin GEnEration on<br />
thE SW cornEr oF thE maracaiBo BLocK: diStaL<br />
EvidEncES oF cariBBEan PLatEau - northWEStErn<br />
South amErica coLLiSion<br />
20-10 11:50 Villagómez, Diego*; Spikings, Richard: thE crEtacEouS<br />
and tErtiary tEctonic hiStory oF WEStErn<br />
coLomBia<br />
20-11 12:10 Silva-Tamayo, Juan Carlos*; Cardona, Agustin; Pardo, Andres;<br />
Ducea, Mihai; Rosero, Sebastian; Montes, Camilo; Valencia,<br />
Victor; Bayona, Germán: Sr-iSotoPE StratiGraPhy aS<br />
an aLtErnativE ProvEnancE tooL oF oLiGocEnE<br />
and miocEnE SEdimEntS aLonG nW coLomBia:<br />
PaLEoGEoGraPhic imPLicationS For thE<br />
cariBBEan PLatE- South amErica intEraction<br />
SESSION NO. 21<br />
20-12 12:30 Pindell, James*; Miranda, Ernesto: KEynotE: PLatE<br />
Boundary controL on thE LinKEd KinEmatic<br />
hiStoriES oF thE macuSPana, aKaL-rEForma,<br />
comaLcaLco, and dEEP WatEr camPEchE BaSin<br />
tEctonic ELEmEntS, SouthErn GuLF oF mEXico<br />
SESSion no. 21<br />
T12. Limnogeology Studies and Paleoenvironmental Records<br />
from Ancient and Modern Lakes<br />
08:30, Hotel Misión Juriquilla, Mariposa 2<br />
Beatriz Ortega, Margarita Caballero, and Socorro Lozano, Presiding<br />
08:30 introductory remarks<br />
21-1 08:40 Correa-Metrio, Alexander*: KEynotE: SourcE oF<br />
miGrantS and no-modErn-anaLoG communitiES:<br />
thE comPLEXitiES oF thE mEXican LandScaPE<br />
21-2 09:10 Zawisza, Edyta*; Caballero, Margarita; Ortega, Beatriz;<br />
Lozano, Socorro: SuBFoSSiL cLadocEra SuccESion in<br />
troPicaL LaKE tacÁmBaro (WEStErn mEXico)<br />
21-3 09:30 Caballero, Margarita*; Lozano, Socorro; Ortega,<br />
Beatriz; Zawisza, Edyta; Sánchez Dzib, Yajaira:<br />
PaLEoLimnoLoGicaL EvidEncE oF hoLocEnE<br />
tranSitionS BEtWEEn mEromictic and hoLomictic<br />
miXinG rEGimES in a mid aLtitudE troPicaL LaKE in<br />
WEStErn mEXico<br />
21-4 09:50 Domínguez-Vázquez, Gabriela*; Osuna-Vallejo, Veronica;<br />
Israde-Alcántara, Isabel: PaLEoEnvironmEntaL<br />
conditionS at thE BaJio durinG thE LaSt GLaciaL<br />
maXimum<br />
21-5 10:10 Torres, Esperanza*; Lozano, Socorro; Roy, Priyadarsi;<br />
Caballero, Margarita; Ortega, Beatriz: a LaSt GLaciaL<br />
miLLEnniaL ScaLE rEcord From LaKE chaLco,<br />
BaSin oF mEXico<br />
10:30 Break<br />
21-6 10:50 Lozano, Socorro*; Torres, Esperanza; Vazquez, Gabriel;<br />
Ortega, Beatriz; Caballero, Margarita: EvidEncES oF<br />
cLimatE chanGE, voLcanic and human imPact<br />
durinG thE LatE PLEiStocEnE and hoLocEnE:<br />
thE rEcord oF LaKE ZirahuEn, WEStErn cEntraL<br />
mEXico<br />
21-7 11:10 Perez, Liseth C.*; Escobar, Jaime H.; Hodell, David A.;<br />
Brenner, Mark; Curtis, Jason; Lozano, Socorro; Schwalb, Antje:<br />
nEotroPicaL non-marinE oStracodES aS<br />
indicatorS oF PaSt LaKE LEvEL and WatEr<br />
chEmicaL comPoSition<br />
21-8 11:30 Ortega, Beatriz*; Soler, Ana Maria; Caballero, Cecilia;<br />
Gonzalez, Jose Antonio; Lozano, Socorro; Caballero,<br />
Margarita: rocK maGnEtiSm oF a 122 m LonG<br />
LacuStrinE SEQuEncE in chaLco BaSin, cEntraL<br />
mEXico: PrELiminary rESuLtS<br />
21-9 11:50 Gonzalez, Silvia Irma*; Huddart, David; Leng, Melanie;<br />
Metcalfe, Sarah: EarLy PLEiStocEnE LacuStrinE<br />
SEQuEncES From thE vaLSEQuiLLo BaSin, cEntraL<br />
mEXico<br />
21-10 12:10 Amezcua, N.*; Macquaker, Joe H.S.; Gawthorpe, Rob:<br />
LacuStrinE carBonatE LithoFaciES oF thE LatE<br />
nEoGEnE mayrÁn Formation, northEaSt mÉXico<br />
21-11 12:30 Batbaatar, J.*; Gillespie, Alan R.; Schreiber, B. Charlotte:<br />
tEctonicS and EnvironmEnt at thE WEStErn End<br />
oF thE BaiKaL riFt: PaLEoLaKE SEdimEnt rEcord<br />
From darhad BaSin, northErn monGoLia<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 47
SESSION NO. 22<br />
SESSion no. 22<br />
PoStEr<br />
tEchnicaL SESSionS<br />
Geochemistry and Petrology <strong>of</strong> Igneous Rocks (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
22-1 1 Ruiz, Elvira Cristina Sr.*; Toro, Luz Mary; Garcia Casco, Antonio;<br />
Blanco-Quintero, Idael; Moreno, Mario; Gómez, Arley; Vinasco,<br />
Cesar: GEochEmicaL comPoSition and oriGin oF<br />
mEtaBaSitE rocKS From thE arQuia comPLEX<br />
(cEntraL coLomBia)<br />
22-2 2 Toro Toro, Luz Mary Sr.*; Moreno, Mario; Blanco-Quintero, Idael;<br />
Ruiz, Elvira Cristina Sr.; Gómez, Arley; Vinasco, Cesar:<br />
comPoSicion GEoQuimica y oriGEn dE LaS mEtaBaSitaS<br />
dEL comPLEJo caJamarca, cordiLLEra cEntraL dE<br />
coLomBia<br />
22-3 3 Beraldi-Campesi, Hugo*: cuEXcomatE: From thE SmaLLESt<br />
voLcano to thE BiGGESt GEySEr on Earth<br />
22-4 4 Cisneros de León, Alejandro O. Sr.*: PEtroGraPhy and<br />
GEochEmiStry oF anorthoSitES in thE chiaPaS maSSiF<br />
22-5 5 Colby, Thomas A.*; Voyles, Erin M.; Rayburn, Jonathan Z.; Carrasco,<br />
Taylor L.; Girty, Gary H.: toWard a uniFiEd modEL For thE<br />
WEathErinG oF GranitoidS: thE caSE For K-FELdSPar<br />
dEFiciEnt SyStEmS<br />
22-6 6 García-Rodríguez, Enrique*; Franco-Rubio, Miguel: Zircon<br />
SEParation By GravimEtric, maGnEtic and<br />
ELEctroStatic tEchniQuES at thE mEtaLLurGicaL<br />
LaBoratory<br />
SESSion no. 23<br />
Structural Geology/Tectonics (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
23-1 7 Mendoza-Rosales, Claudia C.*; Centeno-García, Elena; Silva-Romo,<br />
Gilberto; Campos-Madrigal, Emiliano: thE chiviLLaS Formation<br />
in SouthEaSt oF mEXico: maGmatic and StratiGraPhic<br />
EvidEncE For BarrEmian riFtinG oF thE GuLF oF<br />
mEXico<br />
23-2 8 Soria-Caballero, Diana C.*; Velázquez-Bucio, M. Magdalena;<br />
Mennella, Luca; Garduño-Monroy, Victor Hugo: thE morELiaacamBay<br />
FauLt SyStEm<br />
23-3 9 Vásquez, Alberto Serrano*; Tolson, Gustavo; Gutierrez Navarro,<br />
Rodrigo; Morales-Luis, René: dEFormation oF thE<br />
tEPoScoLuLa Formation BEtWEEn chiLa dE LaS<br />
FLorES, PuEBLa, and huaJuaPan dE LEÓn, oaXaca<br />
23-4 10 Alaniz-Alvarez, Susana A.*; Nieto-Samaniego, A.F.; Santamaría-Díaz,<br />
Alfredo: cEnoZoic activity oF thrEE n-S trEndinG<br />
BaSEmEnt FauLtS in SouthErn mEXico<br />
23-5 11 Morgan, George J.*; Morgan, J.R.: rEcEnt maPPinG in thE<br />
coyotE mountainS, WEStErn SaLton trouGh, imPEriaL<br />
county SouthErn caLiFornia, uSa<br />
23-6 12 Perez Gutierrez, Rosalva*; Jeronimo Villa, Maribel; Solari, Luigi:<br />
StructuraL EvoLution oF XoLaPa comPLEX in thE<br />
ayutLa-cruZ GrandE SEctor, SouthErn mEXico<br />
23-7 13 Bazán Perkins, Sergio Dale Jr.*; Bazán Barrón, Sergio Sr.:<br />
tEctonic EvoLution oF mEXico, durinG thE LatE<br />
PhanEroZoic<br />
48 <strong>2012</strong> GSA Abstracts with Programs<br />
SESSion no. 24<br />
T1. Silicic Volcanism (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
24-1 14 Orozco-Esquivel, Teresa*; Ferrari, Luca; López-Martínez, Margarita:<br />
nEoGEnE voLcaniSm at thE northEaStErn tranSmEXican<br />
voLcanic BELt: EvidEncE For arc-WidE FELSic-<br />
BimodaL voLcaniSm rELatEd to SLaB roLLBacK<br />
24-2 15 Torres-Hernandez, Jose Ramon*; Sieve, Claus; Caballero-Miranda,<br />
Cecilia I.; Alva Valdivia, Luis: an oLiGocEnE caLdEra at thE<br />
SouthErn Part oF thE mEXican mESa cEntraL, San LuiS<br />
PotoSÍ, mEXico<br />
24-3 16 Reyes-Orozco, Violeta Mirthala*; Orozco-Esquivel, Teresa; Ferrari,<br />
Luca; Velasco-Tapia, Fernando; López-Martínez, Margarita: SiLicic<br />
to BimodaL oLiGocEnE voLcaniSm in thE ZimaPÁn arEa,<br />
mEXico: StratiGraPhy, aGE and dEFormation<br />
24-4 17 Andrews, Graham*; Busby, Cathy J.; McDowell, Fred W.: a<br />
comBinEd u-PB, hF, and o in Zircon iSotoPic Study oF<br />
thE northErn SiErra madrE occidEntaL SiLicic LarGE<br />
iGnEouS ProvincE<br />
24-5 18 Petrone, Chiara Maria*; Ferrari, Luca; Orozco-Esquivel, Teresa;<br />
López Martínez, Margarita: PEtroGEnESiS and GEodynamic<br />
SiGniFicancE oF SiLicic voLcaniSm in thE WEStErn<br />
tranS-mEXican voLcanic BELt<br />
24-6 19 Díaz-Bravo, B.A.*; Morán-Zenteno, D.J.: Formation ProcESS oF<br />
PhEnocrySt-rich and PhEnocrySt-Poor iGnimBritES<br />
oF thE EXhumEd EocEnE SuLtEPEc-GoLEta voLcanic<br />
cEntEr oF SouthErn mEXico<br />
24-7 20 Carley, Tamara L.*; Miller, Calvin F.; Wooden, Joseph; Padilla,<br />
Abraham De Jesus; Russel, Kathleen M.; Bindeman, Ilya; Schmitt,<br />
Axel K.; Economos, Rita: JuvEniLE SiLicic maGmatiSm<br />
and cruSt conStruction: icELand aS a modEL For<br />
EarLy-Earth or icELand aS a uniQuE PEtroGEnEtic<br />
EnvironmEnt?<br />
24-8 21 Lidzbarski, Marsha*; Miller, Jonathan; Miller, Calvin; Wooden,<br />
Joseph L.; Vazquez, Jorge A.; Pamukcu, Ayla S.; Carley, Tamara L.;<br />
Gualda, Guilherme A.R.: GEochronoLoGy and tracE<br />
ELEmEnt anaLySiS oF PEach SPrinG tuFF ZirconS and<br />
thEir BEarinG on GroWth oF thE PEach SPrinG tuFF<br />
maGma chamBEr and EruPtion<br />
24-9 22 Gómez-Vasconcelos, Martha Gabriela*; Garduño-Monroy,<br />
Víctor Hugo; Macías, José Luis: GEoLoGy and voLcanic<br />
StratiGraPhy oF SiErra dE miL cumBrES<br />
SESSion no. 25<br />
T2. Ore Deposits and Ore Genesis in the <strong>America</strong>n Cordillera<br />
(Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
25-1 23 Skewes, M. Alexandra*: GEnESiS oF Giant cu-mo dEPoSitS<br />
in thE andES oF cEntraL chiLE (32-34°S) aS a rESuLt oF<br />
ridGE SuBduction cauSinG uPLiFt, EroSion and arc<br />
miGration<br />
25-2 24 Vassallo, L.F.*: GEoLoGy and aLtEration oF voLcanicS<br />
hoStinG thE JuraSSic San nicoLÁS vhmS dEPoSit<br />
(SouthErn ZacatEcaS, mEXico)<br />
25-3 25 García Dobarganes-Bueno, Juan Esteban*; Levresse, Gilles;<br />
Aranda-Rodríguez, Armando; Pérez-Pérez, Pablo Francisco:<br />
charcaS intruSivES comPLEX: aGE and GEochEmiStry,<br />
charcaS mininG diStrict, mEXico<br />
25-4 26 Lyons, James I.; Kallstrom, Michael J.; Kyle, J. Richard*:<br />
mEtaLLoGEny oF thE BatoPiLaS nativE SiLvEr diStrict,<br />
chihuahua, mEXico
25-5 27 Caballero, Juan Antonio Sr.*; Sanchez, Luis Edmundo Sr.; Espinosa,<br />
Enrique G. Sr.: miSSiSSiPPi vaLLEy tyPE dEPoSitS in nE<br />
mEXico<br />
25-6 28 Ahn, Hyein; Kyle, J. Richard*; Miller, Nathan R.: oriGin oF<br />
thE non-SuLFidE Zn dEPoSitS oF thE SiErra moJada<br />
diStrict, coahuiLa, mEXico<br />
SESSion no. 26<br />
T3. Convergent Margin <strong>of</strong> Western Pangea: Triassic-Jurassic<br />
Magmatism, Sedimentation, and Tectonics From Colombia to<br />
Oregon (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
26-1 29 Silva-Romo, Gilberto*; Mendoza-Rosales, Claudia C.;<br />
Campos-Madrigal, Emiliano; Centeno-García, Elena: triaSSic<br />
FLuviaL FaciES in miXtEca tErranE, SouthErn mEXico<br />
26-2 30 Sierra-Rojas, Maria Isabel*; Molina-Garza, Roberto S.;<br />
Palchor-Ocampo, Anderzon Felipe; Franco, Cezar:<br />
SEdimEntoLoGy and PaLEomaGnEtiSm oF thE ZicaPa<br />
Formation, GuErrEro: an aPProach to undErStandinG<br />
oF thE EarLy crEtacEouS activE marGin in WEStErn<br />
oaXaQuia PrEviouS thE inStauration oF thE<br />
GuErrEro-morELoS PLatForm<br />
26-3 31 Campos-Madrigal, Emiliano*; Centeno-García, Elena;<br />
Mendoza-Rosales, Claudia C.; Silva-Romo, Gilberto:<br />
SEdimEntation, dEFormation and maGmatiSm oF thE<br />
JuraSSic ayuQuiLa and tEcomaZÚchiL FormationS<br />
in tEXcaLaPa, PuEBLa - huaJuaPan dE LEon, oaXaca<br />
rEGion<br />
26-4 32 Zavala, Aurora*; Barboza, Rafael: GEochronoLoGy and<br />
GEochEmEStry oF JuraSSic voLcanic rocKS in northcEntraL<br />
to northEaStErn mEXico: imPLicationS For<br />
thE oriGin and EvoLution oF thE naZaS arc<br />
26-5 33 Nova, Giovanny*; Montaño, Paola Catalina; Bayona, Germán;<br />
Rapalini, Augusto.E.; Montes, Camilo; Silva, Cesar:<br />
PaLEomaGnEtiSm oF JuraSSic and LoWEr crEtacEouS<br />
rocKS in thE WEStErn FLanK oF thE PEriJa ranGE;<br />
conStraintS For JuraSSic PaLEoGEoGraPhy and<br />
rotationS<br />
26-6 34 Montaño, Paola Catalina*; Nova, Giovanny; Bayona, Germán;<br />
Montenegro, Omar; Cardona, Agustin; Montes, Camilo; Mahecha,<br />
Hernando; Valencia, Victor: SEdimEntoLoGicaL and<br />
ProvEnancE anaLySiS oF thE JuraSSic La Quinta<br />
Formation in thE WEStErn FLanK oF thE PEriJa ranGE<br />
SESSion no. 27<br />
T5. Mechanisms <strong>of</strong> Arc Magma Generation Along the Cordillera<br />
(Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
27-1 35 Vázquez-Duarte, Alma C.*; Gómez-Tuena, Arturo: iGnEouS<br />
PEtroGEnESiS oF tEQuiLa voLcano, WEStErn mEXico<br />
27-2 36 Juárez-López, Karla*; Martínez-Serrano, Raymundo G. Sr.;<br />
Valadez-Cabrera, Sac-Nicté; García-Tovar, Gloria P.; Solís-Pichardo,<br />
Gabriela: maGmatic EvoLution in thE EaStErn SEctor<br />
oF thE tranS-mEXican voLcanic BELt: chichicuautLa<br />
voLcanic FiELd, hidaLGo, mEXico<br />
27-3 37 Torres-Carrillo, Xochitl G.*; Delgado-Argote, Luis Alberto;<br />
Avilez-Serrano, Porfirio; Weber, Bodo: GEoLoGic anaLySiS oF<br />
thE San JErÓnimo PLuton in thE SouthErn Part oF<br />
thE PEninSuLar ranGES BathoLith, BaJa caLiFornia,<br />
mEXico<br />
27-4 38 Díaz-Bravo, Beatriz*; Gómez-Tuena, Arturo: GEochEmicaL<br />
FEaturES oF aLKaLinE BaSaLtS in thE tEPic-ZacoaLco<br />
riFt, WEStErn mEXican voLcanic BELt<br />
SESSION NO. 29<br />
27-5 40 Pompa-Mera, Valerie*; Schaaf, Peter; Hernández-Treviño, Teodoro;<br />
Weber, Bodo; Solís-Pichardo, Gabriela; Villanueva-Lascurain,<br />
Daniel: GEochEmiStry and GEochronoLoGy oF<br />
iSLa maria madrE iGnEouS rocKS: PaLEotEctonic<br />
intErPrEtationS<br />
27-6 41 Valadez-Cabrera, Sac-Nicté*; Martínez-Serrano, Raymundo G.;<br />
García-Tovar, Gloria P.; Juárez-López, Karla; Solís-Pichardo,<br />
Gabriela: GEochEmicaL and iSotoPic EvidEncES oF thE<br />
maGmatic SourcES in thE XihuinGo-La PaiLa voLcanic<br />
FiELd, EaStErn SEctor oF thE tranS-mEXican voLcanic<br />
BELt<br />
27-7 42 García-Sierra, Mayra G.*; Orozco-Esquivel, Teresa; Velasco-Tapia,<br />
Fernando; Ferrari, Luca; López-Martínez, Margarita:<br />
PEtroGraPhy and GEochEmiStry oF cErro San martÍn<br />
and SiErra dE LoS caBaLLoS miocEnE voLcaniSm,<br />
north-cEntraL tranS-mEXican voLcanic BELt<br />
SESSion no. 28<br />
T6. Terrane Accretion, Flat Slab Subduction, and Convergence Rate<br />
Variations: What Caused the Cretaceous-Paleogene Shortening<br />
across the Mexican Cordillera? (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
28-1 43 Rueda-Gaxiola, Jaime*: iS thE mEXican SiErra madrE<br />
oriEntaL FoLd and thruSt BELt rEaLLy a LaramidE<br />
oroGEnic BELt?<br />
28-2 44 Palacios García, Norma Betania*; Martini, Michelangelo:<br />
ProvEnancE chanGES For SandStonES From thE<br />
SiErra dE LoS cuarZoS (cEntraL mEXico): thE<br />
PoSSiBLE rEcord oF a tErranE accrEtion<br />
28-3 45 Jacques-Ayala, César*; Jacobson, Carl E.; Barth, Andrew P.;<br />
García y Barragán, Juan Carlos: comParativE LatE JuraSSic-<br />
LatE crEtacEouS SEdimEntary and tEctonic<br />
EvoLution oF nW Sonora, mEXico and SE caLiFornia-<br />
SW ariZona, uSa<br />
28-4 46 Manea, Vlad Constantin*; Manea, Marina: GEodynamic<br />
modELinG oF FLat SLaB SuBduction<br />
28-5 47 Hernández Treviño, Teodoro*; Schaaf, Peter; Solís-Pichardo,<br />
Gabriela; Meza García, Vianney: GEochronoLoGy oF iGnEouS<br />
rocKS and itS rELation to tEctonic ProcESSES in thE<br />
chiLPancinGo – tiErra coLorada rEGion, GuErrEro<br />
StatE, SouthErn mEXico<br />
28-6 48 Gonzalez-Becuar, Elizard*; Perez-Segura, Efrén: thE PuErta<br />
dEL SoL mEtamorPhic corE comPLEX: tracE ELEmEnt<br />
and iSotoPic GEochEmiStry, comPariSon BEtWEEn<br />
Laramidic PLutonS in cEntraL Sonora, mEXico<br />
28-7 49 Gracia-Marroquín, Diego*; Cerca, Mariano; Barrientos-García,<br />
Bernardino: accrEtion cycLES in ductiLE WEdGES With a<br />
FrontaL ramP oBSErvEd in SandBoX modELS<br />
SESSion no. 29<br />
T10. The Caribbean Plate and Its Geologic Connections with<br />
North and South <strong>America</strong> (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
29-1 50 Tunesi, Annalisa; Ferrari, Luca*; Ferrario, Alfredo; Martini,<br />
Michelangelo; López Martínez, Margarita: a maFic and<br />
uLtramaFic SuitE in coaStaL GuErrEro, SouthErn<br />
mEXico: EvidEncE For an EocEnE, EXtEnSionaL EPiSodE<br />
rELatEd to thE riFtinG oF thE chortiS BLocK?<br />
29-2 51 Villagómez, Diego*; Pindell, James; Martens, Uwe K.; Donelick,<br />
Raymond; Spikings, Richard: thE thErmo-tEctonic hiStory<br />
oF SouthErn mEXico, PrELiminary rESuLtS From thE<br />
chiaPaS maSSiF<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 49
SESSION NO. 29<br />
29-3 52 Villagómez, Diego*; Spikings, Richard: cEnoZoic couPLinG<br />
BEtWEEn thE SouthErn cariBBEan and thE<br />
northWEStErn South amErican PLatES conStrainEd<br />
By aPatitE FiSSion tracK thErmochronoLoGy From<br />
thE SiErra nEvada dE Santa marta (coLomBia)<br />
SESSion no. 30<br />
T12. Limnogeology Studies and Paleoenvironmental Records<br />
From Ancient and Modern Lakes (Posters)<br />
08:30, Hotel Misión Juriquilla, Juarez 1 and 2<br />
Authors will be present from 16:30 to 18:30<br />
Booth #<br />
30-1 53 Ortega, Beatriz*; Vazquez, Gabriel; Lozano, Socorro; Caballero,<br />
Margarita; Parra, Angel; Leon, Paul Daniel; Schaaf, Peter; Rodriguez,<br />
Alejandro: LaKE ZirahuEn (cEntraL mEXico): an EXamPLE<br />
oF LacuStrinE SEdimEntation in voLcanic SEttinGS<br />
30-2 54 Chavez-Lara, Claudia*; Roy, Priyadarsi; Caballero, Margarita;<br />
Lakshumanan, C.: LacuStrinE oStracodS From<br />
chihuahua dESErt oF mEXico and inFErrEd LatE<br />
QuatErnary PaLEoEcoLoGicaL conditionS<br />
30-3 55 Vazquez, Gabriel*; Ortega, Beatriz; Lozano, Socorro; Caballero,<br />
Margarita: LatE PLEiStocEnE-hoLocEnE EnvironmEntaL<br />
maGnEtiSm From LaKE ZirahuEn SEdimEntS, michoacan,<br />
mEXico<br />
30-4 56 Giles, Gustavo*; Caballero, Margarita; Ruiz Fernández, Carolina;<br />
Lozano, Socorro; Vazquez, Gabriela: LatE hoLocEnE diatom<br />
rEcord From LaKE chaLchoaPan, EaStErn mEXico<br />
30-5 57 Rivas, Jorge*; Vazquez, Gabriel; Ortega, Beatriz: EnvironmEntaL<br />
maGnEtiSm Study oF WEStErn mEXico voLcanic SoiLS<br />
and thEir rELationShiP With LaKE SEdimEntS<br />
30-6 58 Sosa-Nájera, Susana*; Lozano, Socorro; Correa-Metrio, Alexander;<br />
Roy, P.D; Caballero, Margarita: vEGEtationaL chanGES and<br />
cLimatic inFErEncES in nW oF mEXico durinG thE LatE<br />
hoLocEnE<br />
30-7 59 Castro-López, Valerio*; Domínguez-Vázquez, Gabriela: cLimatic<br />
and antroPoGEnic inFLuEncE in thE vEGEtation oF EL<br />
BaJio durinG thE hoLocEnE<br />
30-8 60 Cuna, Estela*; Caballero, Margarita; Lozano, Socorro;<br />
Ruiz-Fernández, Carolina: PaLEoEnvironmEntaL rEcord<br />
From tWo hiGh mountain troPicaL LaKES in mEXico<br />
30-9 61 Israde-Alcántara, Isabel*; Sanchez-Gonzalez, María de Jesús;<br />
Garduño-Monroy, Victor Hugo: thE LatE PLEiStocEnEhoLocEnE<br />
Limit in thE BaSinS oF ZacaPu and cuitZEo<br />
north michoacÁn BaSEd in thE diatom rEcord<br />
aFtErnoon oraL<br />
tEchnicaL SESSionS<br />
SESSion no. 31<br />
Structural Geology/Tectonics<br />
14:30, Hotel Misión Juriquilla, Siglo XVIII<br />
31-1 14:30 Singleton, John S.*: miocEnE StructuraL EvoLution<br />
oF thE BucKSKin-raWhidE mEtamorPhic corE<br />
comPLEX, WESt-cEntraL ariZona<br />
31-2 14:50 Ortega-Gutiérrez, Fernando*: tEctonic SyStEmS oF<br />
mEXico, 50 yEarS oF diScovEry and innovation<br />
31-3 15:10 McKee, Ryan A.*; Miller, Jonathan S.: StratiGraPhy<br />
and StructurE oF thE northErn hiGhLand<br />
ranGE, coLorado rivEr EXtEnSionaL corridor,<br />
SouthErn nEvada<br />
31-4 15:30 Poole, Forrest G.; Amaya-Martínez, Ricardo*; Harris, Anita G.;<br />
Sandberg, Charles A.; Page, William R.: PaLEoGEoGraPhy<br />
and StratiGraPhy oF PaLEoZoic Strata in thE<br />
50 <strong>2012</strong> GSA Abstracts with Programs<br />
rancho EL BÍSani arEa, northWEStErn Sonora,<br />
mEXico<br />
31-5 15:50 Aranda-Gómez, José Jorge*; Cerca-Martínez, Mariano;<br />
Rocha-Treviño, Luis; Carreon-Freyre, Dora; Levresse, Gilles:<br />
Gravity-drivEn dEFormation in dESiccatEd LaKE<br />
SEdimEntS oF rinc”n dE ParanGuEo, cEntraL<br />
mÉXico<br />
31-6 16:10 Flanagan, Daniel M.*; Furbish, David J.; Miller, Calvin F.;<br />
Claiborne, Lily L.: imProvinG thE StatiSticaL viaBiLity<br />
oF u-th modEL aGE hiStoGramS and ProBaBiLity<br />
dEnSity curvES With montE carLo SimuLation<br />
31-7 16:30 Delavari, Morteza; Amini, Sadaraddin*: mid-ocEan ridGE<br />
and SuPra-SuBduction ZonE PEtroLoGicaL<br />
charactEriSticS From thE nEhBandan oPhioLitic<br />
comPLEX, EaStErn iran<br />
SESSion no. 32<br />
T1. Silicic Volcanism II<br />
14:30, Hotel Misión Juriquilla, Juarez 3<br />
Cathy J. Busby and Graham Andrews, Presiding<br />
32-1 14:30 Roldan-Quintana, Jaime Sr.*; Aguirre-Díaz, Gerardo J.;<br />
Layer, Paul W.: thE San PEdro Summit caLdEra,<br />
tEmaScaLcinGo, mEXico<br />
32-2 14:50 Huddart, David*; Gonzalez, Silvia Irma: dEPoSitionaL<br />
ProcESSES,chronoLoGy and StratiGraPhy,<br />
tLaLoc iGnimBritE aPron, BaSin oF mEXico<br />
32-3 15:10 Morán Zenteno, Dante J.*; Díaz Bravo, Beatriz A.; Mori,<br />
Laura; González-Torres, Enrique A.; Chapela-Lara, Maria;<br />
Ramírez Perez Amaya, Erick: timinG, EvoLution and<br />
voLcanic StructurES oF PaLEoGEnE SiLicic<br />
voLcanic cEntErS oF thE northErn SiErra madrE<br />
dEL Sur, SouthErn mEXico<br />
32-4 15:30 Busby, Cathy J.*: EXtEnSionaL and tranStEnSionaL<br />
continEntaL arc BaSinS oF SouthWESt u.S. and<br />
mEXico<br />
32-5 15:50 Kay, Suzanne Mahlburg*; Calixto, Frank; Heit, Ben; Liang,<br />
Xiafeng; Coira, Beatriz; Mulcahy, Patrick; Sandvol, Eric;<br />
Yuan, Xiaohui: maGmatic and SEiSmic EvidEncE For<br />
dELamination oF continEntaL LithoSPhEric<br />
undEr thE cErro GaLan iGnimBritE cEntEr in thE<br />
SouthErn Puna oF thE cEntraL andES<br />
32-6 16:10 Russell, Kathleen M.*; Carley, Tamara L.; Miller, Calvin F.;<br />
Wooden, Joseph; Schmitt, Axel K.; Economos, Rita; Fisher,<br />
Christopher M.; Hanchar, John M.: KraFLa Zircon:<br />
inSiGhtS into GEnEration oF SiLicic maGma at<br />
an icELandic cEntraL voLcano<br />
SESSion no. 33<br />
T14. Ground Deformation Related to Anthropogenic Activities:<br />
Achievements in the Development <strong>of</strong> Geoscience Information<br />
System for Improved Management <strong>of</strong> Natural Resources<br />
14:30, Hotel Misión Juriquilla, Goyesco 1<br />
Dora Carreon-Freyre, Mariano Cerca, Devin L. Galloway, and Penélope<br />
López-Quiroz, Presiding<br />
33-1 14:30 Cerca, Mariano*; Carreon-Freyre, Dora; López-Quiroz,<br />
Penélope; Ovando-Shelley, Efraín; Doin, Marie-Pierre;<br />
Gutierrez-Calderon, Raul; González-Hernández, Marcos;<br />
Jimenez-Sánchez, Alejandra; Blancas-Dominguez, Daniel:<br />
EnGinEErinG GEoLoGy aPProach to thE EFFEctS<br />
oF Land SuBSidEncE in mEXico city<br />
33-2 14:50 López-Quiroz, Penélope; Carrera-Hernández, Jaime J.*:<br />
FactorS aFFEctinG Land SuBSidEncE cauSEd By<br />
GroundWatEr EXtraction in thE BaSin oF mEXico<br />
33-3 15:10 Ochoa-González, Gil H.*; Teatini, Pietro; Carreon-Freyre, Dora:<br />
conStruction oF a numEricaL modEL to aSSESS
Land SuBSidEncE rELatEd to GroundWatEr<br />
WithdraWaL in thE vaLLEy oF QuErEtaro<br />
33-4 15:30 Colvin, David C.*: onE dimEnSionaL modFLoW<br />
modELinG oF Land SuBSidEncE duE to FLuid<br />
WithdraWaL<br />
33-5 15:50 López-Quiroz, Penélope*; Doin, Marie-Pierre: EiGht yEarS<br />
oF mEXico city SuBSidEncE mEaSurEmEntS<br />
throuGh inSar<br />
33-6 16:10 Carreon-Freyre, Dora*; Barrientos-García, Bernardino;<br />
Gutierrez-Calderon, Raul; Mares-Castro, Carlos; Cerca,<br />
Mariano: inStrumEntation SyStEm For in Situ<br />
monitorinG oF Ground dEFormation in<br />
iZtaPaLaPa, mEXico city<br />
Saturday, 31 march <strong>2012</strong><br />
morninG oraL<br />
tEchnicaL SESSionS<br />
SESSion no. 34<br />
T2. Ore Deposits and Ore Genesis in the <strong>America</strong>n Cordillera<br />
08:30, Hotel Misión Juriquilla, Goyesco 1<br />
Antoni Camprubi, Presiding<br />
34-1 08:30 Espinosa, Enrique G. Sr.*: GEoLoGicaL maPPinG: a<br />
vaLuaBLE tooL For minEraL EXPLoration in<br />
mEXico<br />
34-2 08:50 Vèlez, Julio Lòpez*: contriBution to thE<br />
aEromaGnEtic intErPrEtation mininG<br />
EXPLoration<br />
34-3 09:10 Aguirre-Díaz, Gerardo J.*; Tristán-González, Margarito;<br />
González-Partida, Eduardo; Labarthe-Hernández, Guillermo;<br />
Marti, Joan; Nieto-Obregón, Jorge: GraBEn tyPE<br />
caLdEraS oF thE SiErra madrE occidEntaL:<br />
PotEntiaL SitES For hydrothErmaL orE dEPoSitS<br />
34-4 09:30 Rojas-Pardo, Andrea*; Campos, Eduardo; Díaz Viera, Martín;<br />
Vega, David; Bembow, María Soledad: a mEthodoLoGicaL<br />
ProPoSaL For modELinG coPPEr Wad diStriBution<br />
in thE LomaS BayaS orE dEPoSit, northErn chiLE<br />
34-5 09:50 Vasquez-Mendoza, Rigoberto*; Moreno-Lopez,<br />
Miguel Humberto; Cendejas-Cruz, Francisco: GEoLoGicaL<br />
mininG PotEntiaL oF yEcorato ProJEct, choiX,<br />
SinaLoa<br />
34-6 10:10 González-Jiménez, José María*; Camprubí, Antoni; Griffin,<br />
William L.; Centeno-García, Elena; O’Reilly, Suzanne Y.;<br />
Martini, Michelangelo; Proenza, Joaquín A.; Pearson,<br />
Norman J.: a mESoZoic BacK-arc in thE GuErrEro<br />
comPoSitE tErranE (mEXico): EvidEncE From<br />
tracE ELEmEntS and rE-oS iSotoPES in PodiForm<br />
chromititES From Loma Baya<br />
10:30 Break<br />
34-7 10:50 Kyle, J. Richard*: SiErra moJada aG-PB-Zn diStrict,<br />
coahuiLa: EvoLution oF an EndmEmBEr<br />
PoLymEtaLLic carBonatE rEPLacEmEnt<br />
minEraLiZation SyStEm?<br />
34-8 11:10 Camprubí, Antoni*; Martini, Michelangelo; González-Jiménez,<br />
José María; González-Partida, Eduardo; Proenza, Joaquín A.;<br />
Centeno-García, Elena; Fitz-Díaz, Elisa; Valencia-Moreno,<br />
Martín; Izaguirre, Aldo; Iriondo, Alexander: mEtaLLoGEnic<br />
and tEctonomaGmatic EvoLution oF mEXico<br />
durinG thE mESoZoic: a rEviEW and nEW inSiGhtS<br />
SESSION NO. 35<br />
34-9 11:30 Camprubí, Antoni*: mEtaLLoGEnic EvoLution oF<br />
mEXico durinG thE mESoZoic: a comPariSon With<br />
thE rESt oF thE cordiLLEra oF WEStErn north<br />
amErica and thE andES<br />
SESSion no. 35<br />
T5. Mechanisms <strong>of</strong> Arc Magma Generation along the Cordillera<br />
08:30, Hotel Misión Juriquilla, Juarez 3<br />
Laura Mori, Peter Schaaf, and Arturo Gómez-Tuena, Presiding<br />
35-1 08:30 Straub, Susanne M.*; Gómez-Tuena, Arturo; Zellmer, Georg F.:<br />
ni-co SyStEmaticS oF hiGh-ni oLivinES in thE<br />
cEntraL mEXican voLcanic BELt: conStraintS<br />
For PyroXEnitE Formation in thE mantLE WEdGE<br />
35-2 08:50 Martínez-Serrano, Raymundo G.*; García-Tovar, Gloria P.;<br />
Núñez-Castillo, Elizabeth Y.; Correa-Tello, Juan Carlos;<br />
Solís-Pichardo, Gabriela: maGmatic EvoLution in thE<br />
aPan-tLÁLoc rEGion, EaStErn SEctor oF thE<br />
tranS-mEXican voLcanic BELt: Sr, nd and PB<br />
iSotoPic and GEochEmicaL EvidEncES<br />
35-3 09:10 Gómez-Tuena, Arturo*; Vázquez-Duarte, Alma; Díaz-Bravo,<br />
Beatriz; Pérez-Arvizu, Ofelia; Mori, Laura: andESitic<br />
voLcaniSm in WEStErn mEXico By mELtinG oF<br />
amPhiBoLitic mantLE WEdGE PLumES<br />
35-4 09:30 Schaaf, Peter*: idEntiFyinG SuBduction comPonEntS<br />
in thE tranS mEXican voLcanic BELt: a comPLEX<br />
maGmatic arc in a comPLEX SuBduction ZonE<br />
rEGimE<br />
35-5 09:50 Mori, Laura*; Agostini, Samuele; Ramos-Arias, Mario;<br />
Gómez-Tuena, Arturo: GEochEmicaL rEcycLinG and<br />
maGma GEnEration in thE EaStErn tranS-mEXican<br />
voLcanic BELt: thE caSE Study oF thE SErdÁnoriEntaL<br />
BaSin<br />
35-6 10:10 Delgado-Argote, Luis Alberto*; Avilez-Serrano, Porfirio;<br />
Torres-Carrillo, Xochitl G.; Peña-Alonso, Tomás; Weber, Bodo:<br />
PEtroLoGic FEaturES and tEctonic contEXt oF<br />
diScrEtE PLutonS in thE SouthWEStErn marGin<br />
oF thE PEninSuLar ranGES BathoLith, mEXico<br />
10:30 Break<br />
35-7 10:50 Stern, Charles R.*: KEynotE: thE roLE oF SuBduction<br />
EroSion in ProducinG tEmPoraL and SPatiaL<br />
variationS in andEan maGma chEmiStry<br />
35-8 11:20 Chapman, Alan D.*; Ducea, Mihai N.: LithoSPhEric<br />
raindroPS BEnEath thE PEruvian aLtiPLano:<br />
EvidEncE From BacK arc PotaSSic maFic<br />
voLcanic rocKS<br />
35-9 11:40 Farmer, G. Lang*; Glazner, Allen F.; Kortemeier, Winifred T.;<br />
Schweickert, Richard A.; Moore, Jessica: mantLE<br />
LithoSPhErE aS SinK and SourcE oF continEntaL<br />
arc and PoSt-arc maGmatiSm<br />
35-10 12:00 Claiborne, Lily L.*; Wooden, Joseph L.; Miller, Calvin F.; Gualda,<br />
Guilherme A.R.; Clynne, Michael A.; Flanagan, Daniel M.:<br />
undErStandinG thE mount St. hELEnS maGmatic<br />
SyStEm uSinG Zircon SurFacE GEochronoLoGy<br />
and GEochEmiStry, 3d X-ray tomoGraPhy, and<br />
GLaSS comPoSitionS<br />
35-11 12:20 Barnes, Calvin G.*; Frost, Carol D.; Nordgulen, Oystein;<br />
Prestvik, Tore: maGma miXinG and GarnEt Formation<br />
in thE middLE cruSt aS an anaLoG For dEEPcruStaL<br />
maGma miXinG in continEntaL arcS<br />
12:40 10 minutes discussion at the end <strong>of</strong> the second block <strong>of</strong><br />
oral talks<br />
<strong>2012</strong> GSA Cordilleran Section Meeting 51
SESSION NO. 36<br />
SESSion no. 36<br />
T6. Terrane Accretion, Flat Slab Subduction, and Convergence Rate<br />
Variations: What Caused the Cretaceous-Paleogene Shortening<br />
across the Mexican Cordillera?<br />
08:30, Hotel Misión Juriquilla, Siglo XVIII<br />
Michelangelo Martini, Mariano Cerca, Martin Valencia, Elisa Fitz, Gabriel Chávez,<br />
and Timothy F. Lawton, Presiding<br />
08:30 introductory remarks<br />
36-1 08:40 Cruz, Leonardo*; Fitz-Díaz, Elisa; Hudleston, Peter: KEynotE:<br />
numEricaL modELinG oF thE mEXican FoLd-andthruSt<br />
BELt<br />
36-2 09:10 Tolson, Gustavo*; Fitz-Díaz, Elisa; Hudleston, Peter;<br />
Chávez-Cabello, Gabriel: KEy iSSuES oF thE mEXican<br />
FoLd and thruSt BELt Which muSt BE addrESSEd<br />
By ProPoSEd mEchaniSmS oF crEtacEouS-<br />
PaLEoGEnE ShortEninG<br />
36-3 09:30 Valencia-Moreno, Martín*; Chávez-Cabello, Gabriel;<br />
Cerca-Martínez, Mariano; Ferrari, Luca: SynchronouS<br />
WaninG oF LaramidE ShortEninG and initiation oF<br />
cEnoZoic EXtEnSion in northWEStErn mEXico: a<br />
StiLL unSoLvEd iSSuE<br />
36-4 09:50 Xu, Shunshan Sr.*; Nieto-Samaniego, A.F.; Loza-Aguirre, I. Sr.:<br />
mEchaniSmS oF thE FauLtS aSSociatEd With thE<br />
LaramidE FoLdS in thE mESa cEntraL, mEXico<br />
36-5 10:10 Fitz-Diaz, Elisa*; Hudleston, Peter; Solé-Viñas, Jesús; Pi-Puig,<br />
Teresa; van der Pluijm, Ben A.: datinG oF FoLdS in thE<br />
mEXican FoLd-thruSt BELt, cEntraL mEXico<br />
10:30 Break<br />
52 <strong>2012</strong> GSA Abstracts with Programs<br />
36-6 10:50 Lawton, Timothy F.*: aGE oF thE caracoL Formation,<br />
SiErra dE ParraS, coahuiLa, mEXico<br />
36-7 11:10 González-León, Carlos M.*; Lawton, Timothy F.; Solari, Luigi:<br />
crEtacEouS tEctonicS in Sonora: conStraininG<br />
timE oF thE ShortEninG EvEntS<br />
36-8 11:30 Rodríguez-Castañeda, José Luis*; Roldán-Quintana, Jaime:<br />
ProvEnancE anaLySiS From dEtritaL ZirconS in<br />
uPPEr crEtacEouS SandStonES in thE arivEchi<br />
rEGion, EaStErn Sonora, mEXico<br />
36-9 11:50 Martini, Michelangelo*: thE GuErrEro tErranE SuturE<br />
BELt at GuanaJuato and itS rELation With thE<br />
mEXican FoLd-thruSt BELt<br />
36-10 12:10 Centeno-García, Elena*: rEconStructinG rEGionaL<br />
dEFormationaL EvEntS in thE ZihuatanEJo<br />
tErranE From StratiGraPhy and Zircon<br />
GEocronoLoGy<br />
36-11 12:30 Keppie, D. Fraser*: thE PiratE modEL For dErivation<br />
oF thE chortiS and chiaPaS BLocKS From<br />
thE WEStErn GuLF oF mEXico in thE LatESt<br />
crEtacEouS-cEnoZoic: imPLicationS For thE<br />
SiErra madrE oriEntaL and ZonGoLica FoLdBELtS<br />
12:50 concluding remarks
SPOTLIGHT ON THE CORDILLERA<br />
SPECIAL PAPER 484 ■ The 2 ka Eruption <strong>of</strong> Misti Volcano, Southern Peru—<br />
The Most Recent Plinian Eruption <strong>of</strong> Arequipa’s Iconic Volcano NEW!<br />
By Christopher J. Harpel, Shanaka de Silva, and Guido Salas, 2011<br />
SPE484, 72 p., ISBN 9780813724843 | $40.00 | member price $32.00<br />
SPECIAL PAPER 422 ■ Geology <strong>of</strong> México: Celebrating the Centenary<br />
<strong>of</strong> the <strong>Geological</strong> <strong>Society</strong> <strong>of</strong> México BACK IN PRINT!<br />
Edited by Susana A. Alaniz-Álvarez and Ángel F. Nieto-Samaniego, 2007<br />
SPE422, 458 p. plus index, ISBN 9780813724225<br />
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SPECIAL PAPER 442 ■ The Terrane Puzzle: New Perspectives on<br />
Paleontology and Stratigraphy from the North <strong>America</strong>n Cordillera<br />
Edited by Robert B. Blodgett and George D. Stanley Jr., 2008<br />
SPE442, 326 p., ISBN 9780813724423<br />
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SPECIAL PAPER 457 ■ Did Westward Subduction Cause Cretaceous–<br />
Tertiary Orogeny in the North <strong>America</strong>n Cordillera?<br />
By Robert S. Hildebrand, 2009<br />
SPE457, 71 p., ISBN 9780813724577 | $40.00 | member price $28.00<br />
SPECIAL PAPER 467 ■ Mining and Metallurgy in Ancient Perú<br />
By Georg Petersen G.; translated by William E. Brooks, 2010<br />
SPE467, 90 p. ISBN 9780813724676 | $40.00 | member price $28.00<br />
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