Physics – Geophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pggp.rept..342t&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986 p 342-344 (SEE N87-23341 16-91)
Physics
Geophysics
Basalt, Chemical Composition, Lava, Mars Volcanoes, Rheology, Terrain Analysis, Thermal Mapping, Flow Distribution, Mars Surface, Planetary Evolution, Viscosity, Viscous Flow
Scientific paper
The Fink and Fletcher, and Fink model was used to assess and compare flow rheology for two terrestrial basalt flows and one Martian flow with previous studies. Based on the morphologic similarities between the Martian flows and the Icelandic flows and knowledge of the emplacement of the terrestrial flows, the flows west of Arsia Mons are considered to have been emplaced as large sheet flows from basaltic flood style eruptions. Festoon ridges represent folding of the surface crust in the last stages of emplacement when viscosities would be high due to cooling. Alternatively, the lava may have had a high crystallinity or was erupted at low temperatures. In addition, increased compressive stress behind halted flow fronts or in ponded areas may have contributed to ridge formation.
Greeley Ronald
Theilig Eilene
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