Viscous liquid film flow on dune slopes of Mars

Details Viscous liquid film flow on dune slopes of Mars Viscous liquid film flow on dune slopes of Mars

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010icar..207..654m&link_type=abstract

Icarus, Volume 207, Issue 2, p. 654-658.

Mathematics

Logic

6

Scientific paper

It is shown that viscous liquid film flow (VLF-flow) on the surfaces of slopes of martian dunes can be a low-temperature rheological phenomenon active today on high latitudes. A quantitative model indicates that the VLF-flows are consistent with the flow of liquid brines similar to that observed by imaging at the Phoenix landing site. VLF-flows depend on the viscosity, dynamics, and energetics of temporary darkened liquid brines. The darkening of the flowing brine is possibly, at least partially, attributed to non-volatile ingredients of the liquid brines. Evidence of previous VLF-flows can also be seen on the dunes, suggesting that it is an ongoing process that also occurred in the recent past.

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