The Corfu landslide: Analog to giant landslides on Mars

Details The Corfu landslide: Analog to giant landslides on Mars The Corfu landslide: Analog to giant landslides on Mars

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept..230l&link_type=abstract

In NASA. Washington Rept. of Planetary Geology Program, 1983 p 230 (SEE N84-23431 13-91)

Physics

Earth (Planet), Geology, Landslides, Mars (Planet), Mars Surface, Washington, Analogs, Climate, Glacial Drift, Glaciers, Mapping, Mountains, Planetary Quakes

Scientific paper

In an analog to the great landslides of the Vales Marineris, Mars, a detailed study was made of the Corfu Landslide in south-central Washington. This prehistoric slide is located on the northern flank of the Saddle Mountains, southwest of Othello, Washington. The slide covers a 13 square km area centered on section 11 of T.15N., R.27E., Willamette Meridian, adjacent to the Corfu townsite. Approximately 1 cubic km of material is involved in sliding that was probably initiated by Missoula flooding through the Channeled Scabland. It is concluded that there were four primary factors involved in the initiation of the Corfu landsliding: (1) A slip surface was present at the right orientation; (2) Glacial flooding undercut the slope; (3) Wetter climatic conditions prevailed during that time period; and (4) Some seismic vibrations, known to occur locally, probably acted as a trigger. These factors show that special conditions were required in conjunction to produce landsliding. Studies in progress of the Vales Marieneris suggest that the same factors probably contributed to landsliding there.

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