Geomorphology and geology of the Southwestern Margaritifer Sinus and Argyre regions of Mars. Part 3: Valley types and distribution

Details Geomorphology and geology of the Southwestern Margaritifer Sinus and Argyre regions of Mars. Part 3: Valley types and distribution Geomorphology and geology of the Southwestern Margaritifer Sinus and Argyre regions of Mars. Part 3: Valley types and distribution

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept..367p&link_type=abstract

In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 367-368 (SEE N85-23474 13-91)

Mathematics

Logic

Geomorphology, Landforms, Mars Surface, Planetary Geology, Valleys, Hydrogeology, Maps, Mars Craters, Plains, Spatial Distribution

Scientific paper

Three major valley tapes were identified in the SW Margaritefer Sinus and Argyre regions. Two are restricted to specific geologic units while the third is independent of the geology. The first type (the small valley networks) are found within the channeled and subdued plains unit in the eastern half of the map, in the grooved and channeled plains unit north of Nirgal Vallis, and in scattered instances in the cratered plateau unit north of Argyre. The even smaller valleys just inside Argyre's rim and on the inner slopes of many large craters are not directly related to the processes which formed the small valleys but are a result, instead, of post-impact modification of the crater walls. The second type of valley network is represented by Nirgal Vallis and the similar, shorter continuation of it to the west. This type is found only in the smooth plains material west of Uzboi Vallis in the map area. The third type of valley network is that of the Uzbol-Holden-Ladon valles system. This system is related to catastrophic outflow from Argyre Basin and is topographically rather than geologically controlled.

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