The Origin of Warrego Valles: A Case Study for Fluvial Valley Formation on Early Mars

Details The Origin of Warrego Valles: A Case Study for Fluvial Valley Formation on Early Mars The Origin of Warrego Valles: A Case Study for Fluvial Valley Formation on Early Mars

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000stin...0094677g&link_type=abstract

Conference Paper, 9th Lunary and Planetary Science Meeting

Mathematics

Logic

Mars Surface, Valleys, Research, Erosion, Ground Water, Estimating, Geology, Intrusion, Melting, Plateaus, Rain, Snow

Scientific paper

Warrego Valles is one of the best examples of a well integrated fluvial valley system that formed early in the geological history of Mars, the lack of similar erosion elsewhere along the edge of Thaumasia plateau is not consistent with a formation by rainfall. Instead the radial pattern of this valley system centered on a region of localized uplift argues for a more localized water source. We conclude that this uplift was most likely the result of a subsurface magmatic intrusion and that the estimated volume of this intrusion is sufficient to cause enough hydrothermal ground-water outflow to form the valley system. A possible alternative to this scenario is hydrothermal ground-water outflow combined with a melting snow pack.

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