Concentric Crater Fill: How Martian Craters Filled With Ice And Why It’s Still There
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Nora is a postdoctoral research fellow at the University of Western Ontario.

                       

Concentric Crater Fill: How Martian Craters Filled With Ice And Why It’s Still There

Many mid-latitude impact craters on Mars are filled to variable degrees with a combination of ice, dust, and rocky debris. Ring-shaped surface features visible in satellite images in these craters led to the nomenclature Concentric Crater Fill, or CCF. Concentric Crater Fill is one of many glacial features found on Mars and originates from ice flow and debris transportation during glacial and periglacial processes. CCF observed today is interpreted to be the remains of repeated periods of ice accumulation and...

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