SEG 45 Final_qx4 - Society of Economic Geologists

32 SEG NEWSLETTER No 53 • APRIL 2003
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SEG-GAC-MAC Joint Spring Meeting 2003 (Continued)
ANNOUNCEMENTS
plutonic rocks and sedimentary rocks;
new deposit and camp descriptions;
regional semi-conformable to depositscale
hydrothermal alteration; metal
and fluid source tracing; timing of massive
sulphide events; and models for ore
deposition and genesis. Attendees interested
in this session also will be
attracted to field trips A1 and A2.
SS10.
TECTONIC CONTROLS ON PALEO-
PROTEROZOIC MINERALIZATION
Chris Beaumont-Smith
(cbeaumont@gov.mb.ca),
Alan Bailes (abailes@gov.mb.ca) and
Alan Galley (agalley@NRCan.gc.ca)
The Paleoproterozoic is one of the most
prolific periods of early Earth history for
production of base metal and gold mineralization.
This session will present
studies by researchers and explorationists
on the setting and control of deposits
formed during this important period
including lode gold, volcanogenic massive
Cu-Zn-Au sulphide, Olympic Damtype
Cu-Au mineralization, and cratonmargin
nickel and PGE mineralization.
All aspects of these deposits will be considered
including mine-scale studies,
research into geological controls of
mineralization in individual mining
areas, and studies emphasizing regionalscale
tectonic-metallogenic controls.
Attendees interested in this session also
will be attracted to short course SC2 and
field trips A1, A2, B1, and B2.
SS11.
GEM MATERIALS AND
MINERALOGY
Lee A. Groat (lgroat@eos.ubc.ca)
SS12.
APPLICATIONS OF GEOPHYSICAL
INVERSION FOR MINERAL
EXPLORATION: CURRENT STATUS
AND VISION FOR THE FUTURE
Douglas Oldenburg
(doldenburg@eos.ubc.ca) and
John McGaughey (johnm@
mirageoscience.com)
The last decade has seen large-scale
advances in our ability to generate 3D
physical property images of the Earth
by inverting data from different geophysical
surveys. With advanced visualization
tools, these inversions allow new
understanding about the geology at
both regional and deposit scales. Today,
geophysical inversions are carried out
routinely by many companies and the
inversions have been effective in finding
mineral deposits and in reducing exploration
costs. This session focuses on case
histories that illuminate the impact that
inversions have had on mineral exploration
programs and also present a
vision for future capabilities. Attendees
interested in this session also will be
attracted to the SEG workshop (WS1)
Understanding Geophysical Inversions for
Mineral Exploration.
SS13.
CANADIAN DIAMOND DEPOSITS:
HISTORY AND TECHNIQUES
OF THEIR DISCOVERY –
A TRIBUTE TO HUGO DUMMETT
Felix Kaminsky
(felixvkaminsky@cs.com)
and Donald K. Mustard
(amustard@attcanada.net)
The past decade has seen Canada move
into the select ranks of diamond producing
nations. This session consists of
contributions on all aspects of diamond
exploration especially the research techniques
employed in their discovery. The
session is focused on the Canadian diamond
scene, but contributions on diamond
deposits from other geographical
regions are considered. The session is a
tribute to the late SEG president Hugo
Dummett, a pioneer in diamond exploration
and mine development in Canada.
Attendees interested in this session also
will be attracted to the SEG workshop
(WS1) Understanding Geophysical
Inversions for Mineral Exploration.
SS14.
NEW PERSPECTIVES ON THE
EVOLUTION OF THE PLATINUM
GROUP ELEMENTS IN MAGMAS
AND ORE DEPOSITS
James Scoates (jscoates@eos.ubc.ca)
and David Peck
(dpeck@angloamerican.ca)
This special session brings together specialists
in the mineralogy and geochemistry
of platinum group elements (PGE)
and geologists who study the field and
structural aspects of PGE mineralization
to address advances in our understanding
of PGE evolution in magmas and
ore deposits. Some of the areas of
progress in recent years include:
increasingly sensitive analytical techniques
for PGE, the recognition of
dynamic processes as important for PGE
mineralization, and the development of
sophisticated physical and chemical
models for PGE variations in basaltic to
komatiitic magmas. Contributions
related to these and other aspects of
magmatic PGE evolution and mineralization
are considered. Attendees interested
in this session also will be
attracted to short course SC2 and field
trip B2.
SS15.
ORE-FORMING PROCESSES IN THE
PORPHYRY COPPER (GOLD) AND
EPITHERMAL GOLD ENVIRONMENTS:
WHAT DO WE REALLY KNOW?
Stephen Rowins (srowins@eos.ubc.ca)
and Anthony Williams-Jones
(willyj@eps.mcgill.ca)
It has become increasingly apparent
that both high- and low-sulphidation
epithermal gold deposits are, in many
cases, genetically related to large porphyry
copper-gold systems. These
genetic linkages, however, are incompletely
understood - a point underscored
by the recent flood of analytical, experimental,
theoretical, and field studies
which call into question many of the
assumptions commonly held regarding
ore-forming processes in the porphyryepithermal
environment. This special
session highlights analytical, theoretical,
experimental and field investigations
of the mobility, transport, deposition,
and source of metals in the
porphyry-epithermal environment.
Attendees interested in this session also
will be attracted to short courses SC1
and SC2 and field trips A2 and B1.
SS16.
CUTTING EDGE EXPLORATION
TECHNIQUES FOR CONCEALED
ORE DEPOSITS
Ron Britten
(rbritten@firstpointminerals.com)
and Dick Tosdal (rtosdal@eos.ubc.ca)
The discovery of new mineral deposits is
becoming more challenging as near
surface deposits are depleted. This
session highlights exploration techniques
that encompass various disciplines
including geology, geochemistry,
geophysics, and computer-aided visualization,
which aid in the search for