THEMIS: Sand sheet, dunes in Matara Crater

Dunes in Matara Crater (THEMIS_IOTD_20190422)THEMIS Image of the Day, April 22, 2019. Today’s VIS image shows the floor of Matara Crater. A large sand sheet with surface dune forms dominates the floor of this crater located in Noachis Terra. The dunes’ dark tone indicates a lack of dust, which is light in tone. Thus the dune sands are probably active and moving under the wind.

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