THEMIS: Nilokeras Fossa

Parallel valleys of Nilokera Fossa (THEMIS_IOTD_20160527)THEMIS Image of the Day, May 27, 2016. Today’s VIS image shows parallel sets of depressions. These are tectonic graben formed when a block of material is down dropped between paired faults. Nilokeras Fossa is located on the margin of Kasei Valles.

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