THEMIS Image of the Day, August 8, 2016. This VIS image shows a portion of Kasei Valles. Kasei Valles is a large channel system that drained from the Tharsis volcanic highlands to the lower elevation Chryse Plainitia. At the top of the image is a deeper section of the channel with a tear-drop shaped central island. The direction of fluid flow is identified by the shape of the island, with the narrow “tail” on the downhill end.
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