Computer Science
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...34..600s&link_type=abstract
Icarus, vol. 34, June 1978, p. 600-613.
Computer Science
106
Fretting, Mars Surface, Photointerpretation, Soil Erosion, Terrain Analysis, Craters, Debris, Flow Distribution, Mars Photographs, Lineaments, Erosional Agents, Fretting, Climate, Scarps, Flow, Glaciers, Permafrost, Regolith, Nilosyrtis, Mensae, Protonilus, Mars, Erosion, Ice, Viking Orbiter, Particles, Topography, Morphology
Scientific paper
Viking orbital photographs of two regions of Martian fretted terrain have revealed a number of landforms which appear to possess distinct flow lineations. These range from valley floors with lineations which parallel the valley walls to debris aprons with distinctly lobate profiles and lineations which radiate outward from the source area. These features are attributed to the deformation and flow of a mass consisting of erosional particles and ice incorporated from the atmosphere. Such a flow should behave much like a terrestrial rock glacier. A plastic deformation model is presented which is consistent with the known mechanical properties of rock glaciers and with the observed features of the landforms. The valley floor lineations are interpreted as being due to compressional forces resulting from debris flowing inward from the valley walls. Climatic implications of the features are discussed.
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