Physics – Geophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pggp.rept..339s&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986 p 339-341 (SEE N87-23341 16-91)
Physics
Geophysics
Geochronology, Geomorphology, Lava, Mars Craters, Mars Surface, Mars Volcanoes, Bedrock, Spatial Distribution, Statistical Distributions, Tectonics
Scientific paper
Many large lava flows on the flanks of Alba Patera are astonishing in their volume and length. As a suite, these flows suggest tremendously voluminous and sustained eruptions, and provide dimensional boundary conditions typically a factor of 100 larger than terrestrial flows. One of the most striking features associated with Alba Patera is the large, radially oriented lava flows that exhibit a variety of flow morphologies. These include sheet flows, tube fed and tube channel flows, and undifferentiated flows. Three groups of flows were studied; flows on the northwest flank, southeast flank, and the intracaldera region. The lava flows discussed probably were erupted as a group during the same major volcanic episode as suggested by the data presented. Absolute ages are poorly constrained for both the individual flows and shield, due in part to disagreement as to which absolute age curve is representative for Mars. A relative age sequence is implied but lacks precision due to the closeness of the size frequency curves.
Pieri David C.
Schneeberger Dale M.
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