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20100017207 NASA, Washington, DC, USA
Geologic Mapping of Holden Crater and the Uzboi-Ladon-Morava Outflow System
Grant, J. A.; Irwin, R. P., III; Wilson, S. A.; Abstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio,
TX, 2009; June 2009, pp. 25-26; In English; See also 20100017196; Original contains color illustrations; Copyright;
Avail.: CASI: A01, Hardcopy
ONLINE: http://hdl.handle.net/2060/20100017207
Geologic mapping in Margaritifer Terra (Fig. 1) yields important new information regarding the inventory, sources, and
sinks of water during the Noachian and early Hesperian on Mars [1-7]. Drainage in southwest Margaritifer Terra is dominated
by the segmented Uzboi-Ladon-Morava (ULM) meso-scale outflow system that traverses northward along the southwestern
flank of the Chryse trough [4-9]. Mapping of lower Uzboi Vallis through Ladon basin highlights the extent and complexity
of sedimentary deposits associated with the ULM system [5-13].
Author
Geological Surveys; Mars Surface; Drainage; Craters; Mars 1 Spacecraft; Segments
20100017208 NASA, Washington, DC, USA
Geology of the Southern Utopia Planitia Highland-Lowland Boundary Plain: Second Year Results and Third Year Plan
Skinner, J. A., Jr.; Tanaka, K. L.; Hare, T. M.; Abstracts of the Annual Meeting of Planetary Geologic Mappers, San Antonio,
TX, 2009; June 2009, pp. 39-40; In English; See also 20100017196; Original contains color illustrations; Copyright;
Avail.: CASI: A01, Hardcopy
ONLINE: http://hdl.handle.net/2060/20100017208
The southern Utopia highland-lowland boundary (HLB) extends >1500 km westward from Hyblaeus Dorsa to the
topographic saddle that separates Isidis and Utopia Planitiae. It contains bench-like platforms that contain depressions, pitted
cones (some organized into arcuate chains and thumb-print terrain), isolated domes, buried circular depressions, ring fractures,
polygonal fractures, and other locally- to regionally-dispersed landforms [1-2]. The objective of this map project is to clarify
the geologic evolution of the southern Utopia Planitia HLB by identifying the geologic, structural, and stratigraphic
relationships of surface materials in MTMs 10237, 15237, 20237, 10242, 15242, 20242, 10247, 15247, and 20247. The project
was originally awarded in April, 2007 and is in its final year of support. Mapping is on-schedule and formal map submission
will occur by December, 2009, with finalization anticipated by April, 2010. Herein, we (1) review specifics regarding mapping
data and methods, (2) present nomenclature requests that we feel will assist with unit descriptions, (3) describe Year 2 mapping
and science accomplishments, and (4) outline Year 3 technical and managerial approaches for finalizing the geologic map.
Author
Geology; Mars Surface; Surface Properties; Topography; Highlands; Landforms; Stratigraphy
20100017209 NASA, Washington, DC, USA
Mars Global Geologic Mapping: About Half Way Done
Tanaka, K. L.; Dohm, J. M.; Irwin, R.; Kolb, E. J.; Skinner, J. A., Jr.; Hare, T. M.; Abstracts of the Annual Meeting of Planetary
Geologic Mappers, San Antonio, TX, 2009; June 2009, pp. 41-42; In English; See also 20100017196; Original contains color
illustrations; Copyright; Avail.: CASI: A01, Hardcopy
ONLINE: http://hdl.handle.net/2060/20100017209
We are in the third year of a five-year effort to map the geology of Mars using mainly Mars Global Surveyor, Mars
Express, and Mars Odyssey imaging and altimetry datasets. Previously, we have reported on details of project management,
mapping datasets (local and regional), initial and anticipated mapping approaches, and tactics of map unit delineation and
description [1-2]. For example, we have seen how the multiple types and huge quantity of image data as well as more accurate
and detailed altimetry data now available allow for broader and deeper geologic perspectives, based largely on improved
landform perception, characterization, and analysis. Here, we describe mapping and unit delineation results thus far, a new unit
identified in the northern plains, and remaining steps to complete the map.
Author
Mars Surface; Planetary Geology; Landforms; 2001 Mars Odyssey; Mars Global Surveyor
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