Paleolakes and lacustrine basins on Mars

Details Paleolakes and lacustrine basins on Mars Paleolakes and lacustrine basins on Mars

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..131s&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 131-132 (SEE N92-10728 01-91)

Physics

Geophysics

1

Climate, Climatology, Glaciers, Ice, Lakes, Water, Deformation, Glacial Drift, Mars (Planet), Paleontology, Planetary Evolution, Planetary Geology, Structural Basins, Valleys

Scientific paper

The problems of how warm and wet Mars once was and when climate transitions may have occurred are not well understood. Mars may have had an early environment similar to Earth's that was conducive to the emergence of life. In addition, increasing geologic evidence indicates that water, upon which terrestrial life depends, has been present on Mars throughout its history. This evidence does not detract from the possibility that life may have originated on early Mars, but rather suggests that life could have developed over longer periods of time in longer lasting, more clement local environments than previously envisioned. It is suggested herein that such environments may have been provided by paleolakes, located mostly in the northern lowlands and probably ice covered. Such lakes probably would have had diverse origins. Glacial lakes may have occupied ice eroded hollows or formed in valleys obstructed by moraines or ice barriers. Unlike Earth, the Martian record of the origin and evolution of possible life may have not been erased by extensive deformation of the surface. Thus the basins that may have contained the paleolakes are potential sites for future biological, geological, and climatological study.

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