Martian lake basins and lacustrine plains

Details Martian lake basins and lacustrine plains Martian lake basins and lacustrine plains

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992em%26p...56...95d&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 56, no. 2, Feb. 1992, p. 95-122.

Physics

37

Lakes, Mars Surface, Plains, Planetary Geology, Structural Basins, Structural Properties (Geology), Glacial Drift, Landforms, Mars Photographs, Water

Scientific paper

A classification of Martian lake basins based on the location of the basin in respect to water sources is proposed. The classes are type 1: valley-head basins; type 2: intravalley basins; type 3: valley-terminal basins; and type 4: isolated basins. Martian lakes are ephemeral features. Many craters and irregular depressions impounded water only until the basins filled and overflowed. Water escaping by spillover rapidly cut crevasses in the downstream side of basins and drained the ponds. Clastic lacustrine sediments collected in the lakes as flowing water lost velocity and turbulence. Evaporitic deposits may be significant in those basins that were not rapidly drained. Sediments deposited in lake basins form smooth, featureless plains. Lacustrine plains are potentially candidate sites for Mars landings and for the search for evidence of ancient life.

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