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OMEGA discovers water-rich minerals in Marwth Vallis

OMEGA discovers water-rich minerals in Marwth Vallis
OMEGA discovers water-rich minerals in Marwth Vallis In this HRSC 3D image of the Marwth Vallis area (shades of grey), OMEGA has mapped the water-rich minerals, denoted here in blue. No hydrated minerals or sediments have been detected, either in the channel or in its opening. However, the outflow was so violent that it eroded and exposed ancient hydrated clay-rich minerals, dating back to an early era when water was present. Courtesy ESA / OMEGA / HRSC