Other
Scientific paper
May 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icar...62..191t&link_type=abstract
Icarus (ISSN 0019-1035), vol. 62, May 1985, p. 191-206.
Other
34
Contacts (Geology), Ice, Mars Volcanoes, Volcanology, Deformation, Lava, Regolith, Rheology, Strain Rate, Mars, Ice, Gravity Effects, Olympus Mons, Aueroles, Deposits, Structure, Morphology, Volcanoes, Shear, Pressure, Formation, Rheology, Layers, Models, Deformation, Analogs, Composition, Concentration, Photographs
Scientific paper
The huge aureole deposits and the perimeter scarp of Olympus Mons in the Tharsis region of Mars were first observed by Mariner 9. It is pointed out that no other Martian volcano approaches the size of Olympus. Hypotheses of aureole formation are discussed and evaluated. It is concluded that gravity-sliding and gravity-spreading models for the Olympus Mons aureoles can account qualitatively for the observations regarding surface morphology, structure, and size. The presence of the basal scarp can also be understood. However, the proposed models require detachment between the aureoles and the substrate. In the present investigation, the proposal is made that widespread detachment may have occurred within a basal layer containing approximately 10 percent by volume of interstitial or interbedded ice.
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