THEMIS: Impact-triggered landslide in Kasei Valles

Impact landslide in Kasei Valles (THEMIS_IOTD_20160408)THEMIS Image of the Day, April 8, 2016. This VIS image shows a small portion of Kasei Valles. The channel rim at the top of the image shows a complex series of processes. The crater was the source of the landslide material – either as emplacement of ejecta or from collapse of the rim. To the right of the crater is a semi-circular feature that appears to have collapsed and created blocks of material. A relative time relationship in this image seems to be creation of the channel, impact formation and the ejecta/collapse of the crater, and then the collapse of the material in the semi-circular feature. These events could have happened days apart or millions of years apart.

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