Mathematics – Probability
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27....3a&link_type=abstract
Lunar and Planetary Science, volume 27, page 3
Mathematics
Probability
Blankets: Fluidized Ejecta, Ejecta: Fluidized, Ejecta: Impact, Flows: Gaseous Debris, Mars
Scientific paper
Previous workers have modeled Martian fluidized ejecta blankets (FEBs) as mud flows originating from impact vaporization of subsurface ice and recondensation during the expansion of the ejecta. The flows appear to be thin, ground-hugging and often are diverted by low-rising surface features. We believe that mud flows do not adequately describe FEBs due to the large amounts of entrained water required to sustain a debris-rich mud flow and the improbability of re-condensing water vapor in the ejecta flow from the impact event. Gaseous debris flows similar to terrestrial pyroclastic flows may better explain the rampart features of Martian FEBs. Pyroclastic flows from Mt. St. Helens and Mt. Pinatubo were ground-hugging and strongly slope dependent. Barriers often diverted the flow path, but when barriers were overcome little or no deposits were left on ridge crests. Martian FEB characteristics seem to favor a gas driven ejecta flow.
Akridge Glen
Sears Derek W. G.
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