Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992msat.work...86k&link_type=abstract
In Lunar and Planetary Inst., Workshop on the Martian Surface and Atmosphere Through Time p 86-87 (SEE N92-28988 19-91)
Astronomy and Astrophysics
Astrophysics
Erosion, Landforms, Mars Surface, Morphology, Planetary Evolution, Terraces (Landforms), Terrain, Canyons, Lakes, Ocean Models, Water
Scientific paper
Many investigators have proposed potential lakes in Valles Marineris based on the relationship with outflow channels, and a proposed lacustrine origin of layered deposits. We have investigated the erosional style of the layered terrains and evaluated their potential origins as sedimentation in and erosional modification by these lakes. The erosional features that will be discussed are distributed in the central canyon area and classified into terraces and layered depressions. Many terraces can be explained by coastal erosion in lakes as well as by eolian erosion. The lack of terraces on the canyon walls is probably due to more recent sapping and mass wasting of materials with different mechanical response to erosion than the layered terrains. Catastrophic water discharges in Valles Marineris as hypothesized by an ocean model may have been the source of the lakes and the eventual catastrophic release of water from the canyons.
Gulick Virginia Claire
Komatsu Goro
Parker Timothy J.
Strom Richard G.
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