Knobs Bright Deposits and Inverted Channels in Eberswalde
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Knobs, Bright Deposits, and Inverted Channels in Eberswalde Crater (PSP_010052_1560)

July 28, 2010
Eberswalde Crater is an approximately 65-kilometer diameter, closed basin crater. It contains a delta, which indicates that flowing water was present for an extended period of time in the past.

Parts of the crater have inverted channels that have higher relief because a more resistant material was deposited in the channel and therefore it was less susceptible to erosion than the surrounding area. The image also shows resistant knobs and mounds as well as a scoured surface.

The CRISM instrument on-board MRO has detected phyllosilicates (clays) in some of the bright layers here. On Earth, clays form in the presence of water, so this is more evidence that there was a persistent flow of water in Eberswalde.

Written by: Jennifer Griffes

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