Channeling episodes of Kasei Valles, Mars, and the nature of ridged plains material

Details Channeling episodes of Kasei Valles, Mars, and the nature of ridged plains material Channeling episodes of Kasei Valles, Mars, and the nature of ridged plains material

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..138c&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 138-139 (SEE N92-10728 01-91)

Mathematics

Logic

Floods, Mapping, Mars Surface, Plains, Planetary Evolution, Terrain, Canyons, Fluid Flow, Fractures (Materials), Geological Surveys, Lava, Mesas, Plateaus, Structural Properties (Geology)

Scientific paper

The geologic mapping compiled at 1:500,000 scale of the northern Kasei Valles area of Mars (MTMs 25062 and 25067) indicates (1) at least three periods of Kasei Valles channeling, (2) the development of Sacra Fossae (linear depressions on Tempe Terra and Lunae Planum) in relation to Kasei channeling episodes, and (3) the nature of ridged plains material dissected by Kasei Valles on northern Lunae Planum. (The three channeling periods consists of two flood events and a later, sapping related event). These findings suggest hydrologic conditions and processes that formed Kasei Valles and associated features and terrains. It is concluded that an early period of flooding, whose source is perhaps buried beneath lava flows of Tharsis Montes, may have eroded streamlined features in northern Lunae Planum. Also, later floods originating from Echus Chasma formed after the initial flooding and the mesas adjacent to the plateau. The Sacra Fossae formed after the initial flooding and during the second flooding by sapping, outbreak, scarp retreat, and collapse along joints and fractures in ridged plains materials.

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