Tag Archives: layered ejecta craters

THEMIS: Impact crater on volcanic plains

Posted on August 23, 2018 by rburnham

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 →

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Long-term preservation of subsurface ice on Mars

Posted on February 22, 2018 by rburnham

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 →

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