CENTER FOR INTEGRATIVE PLANETARY SCIENCE (CIPS)

BioMARSInteraction between the
geodynamic and hydrologic
processes on Mars
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Interaction between the geodynamic and hydrologic processes on Mars

Michael Manga, University of California, Berkeley

     

     Project members: Yoshiko Ogawa (postdoc: hydrothermal processes in the Martian crust), Bruno Cagnoli (postdoc: mobility of granular flow and the evidence for water on Mars), Mark Wenzel (graduate student: mantle convection on Mars), Veronika Soukhovitskaya (undergraduate: mobility of granular flow and the evidence for water on Mars), collaborations with Curt Oldenburg at LBNL on the numerical modeling.

      We have developed experimental and numerical models for the evolution of mantle convection on Mars (Wenzel et al.,Geophysical Research Letters, 2004). These models predict the spatial and temporal evolution of heat flow which in turn are the critical boundary conditions for hydrothermal processes in the crust. We have also started to develop numerical models to study the hydrothermal processes that occur when magma is intruded into the cryosphere.We have used surface observations to better constrain the distribution and amount of water present in the Martian subsurface. We have shown that recent floods at Cerberus Fossae can be explained by discharge from aquifers (Manga, Geophysical Research Letters, 2004).We have also studied experimentally the mobility of granular mass flows in order to reevaluate the potential role of water in mass wasting on Mars. We find that unusually large run-out distances of granular flows can be explained only by the presence of interstitial fluids such as liquid water.

Recent Research:


Department of Astronomy    601 Campbell Hall    Berkeley, CA 94720-3411    510-643-2457