Landform sequences and environmental changes on Mars

Details Landform sequences and environmental changes on Mars Landform sequences and environmental changes on Mars

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986crasb.303.1371t&link_type=abstract

Academie des Sciences (Paris), Comptes Rendus, Serie II Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Terre

Physics

Hydrology Models, Landforms, Mars Environment, Mars Surface, Planetary Geology, Glaciers, Ground Water, Mars Volcanoes, Tectonics, Valleys

Scientific paper

Mariner 9 and Viking images are used to trace sequential changes in the surface topography and environment of Mars. In summary, water at one time flowed freely enough to cut V-shaped valleys in the surface. The lower ends of the valleys were buried by sedimentation, partially volcanic ash, then deformed by tectonic activities. Some groundwater outflows occurred, followed by reshaping of the valleys by glacial movements. Thinning of the atmosphere and subsequent cooling formed the permafrost that eliminates any chance for further groundwater outflows.

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