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Tag Archives: layered ejecta craters
THEMIS: Impact crater on volcanic plains
THEMIS Image of the Day, August 23, 2018. This VIS image shows an unnamed crater located northeast of Ascraeus Mons, on the volcanic plains of the Tharsis region. The rim has several concentric ridges. There are multiple layers of ejecta, … Continue reading
Posted in Reports
Tagged Arizona State University, Ascraeus Mons, ASU, impact craters, layered ejecta craters, Mars Odyssey, NASA, Tharsis, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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Long-term preservation of subsurface ice on Mars
Layered-ejecta craters on Mars that are associated with impacts into rock mixed with volatiles have been formed throughout the planet’s history indicating the long-term preservation of subsurface ice. Water ice on Mars is not currently stable in the near-equatorial regions … Continue reading
Posted in Reports
Tagged ground ice, layered ejecta craters, rampart craters, rampart ejecta
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