Rheological analyses of lava flows on Mars

Details Rheological analyses of lava flows on Mars Rheological analyses of lava flows on Mars

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..170m&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 170-171 (SEE N92-10728 01-91)

Physics

Geophysics

Fluid Flow, Lava, Mars (Planet), Mars Surface, Mars Volcanoes, Photogrammetry, Rheology, Andesite, Basalt, Comparison, Elevation, Hawaii, Mineralogy, Silicon Dioxide

Scientific paper

Researchers obtained 183 profiles of lava flows on Mars using photoclinometry. These photoclinometric profiles were leveled by adjusting them until the levee crests or bases had the same elevations (depending on the situation). Here, researchers report some of the results of their analysis of 27 flows on the flanks of Alba Patera (3 flows), near the summit of Ascraeus Mons (6 flows), the flanks of Arsia Mons (3 flows), and the flanks of Olympus Mons (15 flows). Results suggest that the flows examined to date are not felsic or ultramafic; rather, they probably range from basalts to basaltic andesites. Thus, the suggestion that flows on Olympus Mons and elsewhere may be more silicic than Hawaiian basalts is supported by the researchers' results. These suggestions are testable with suitable measurements of silica contents of the flows.

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