Physical properties of lava flows on the southwest flank of Tyrrhena Patera, Mars

Details Physical properties of lava flows on the southwest flank of Tyrrhena Patera, Mars Physical properties of lava flows on the southwest flank of Tyrrhena Patera, Mars

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..167c&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 167-169 (SEE N92-10728 01-91)

Physics

Geophysics

Calderas, Fluid Flow, Lava, Magma, Mars (Planet), Mars Surface, Mars Volcanoes, Planetary Geology, Volcanoes, Yield Strength, Channel Flow, Estimates, Highlands, Morphology, Structural Basins, Vents

Scientific paper

Tyrrhena Patera (TP) (22 degrees S, 253.5 degrees W), a large, low-relief volcano located in the ancient southern highlands of Mars, is one of four highland paterae thought to be structurally associated with the Hellas basin. The highland paterae are Hesperian in age and among the oldest central vent volcanoes on Mars. The morphology and distribution of units in the eroded shield of TP are consistent with the emplacement of pyroclastic flows. A large flank unit extending from TP to the SW contains well-defined lava flow lobes and leveed channels. This flank unit is the first definitive evidence of effusive volcanic activity associated with the highland paterae and may include the best preserved lava flows observed in the Southern Hemisphere of Mars. Flank flow unit averages, channelized flow, flow thickness, and yield strength estimates are discussed. Analysis suggests the temporal evolution of Martian magmas.

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