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Illustration of the suspected ice-rich MFF deposit of Eumenides Dorsum. The white line on Mars’s surface (top) shows the location that was scanned by MARSIS. The illustration below shows the shape of the land and the structure of the subsurface, with the layer of dry sediments (likely volcanic ash or dust) in brown and the layer of suspected ice-rich deposits in blue. The graph shows that the ice deposit is thousands of meters thick and hundreds of kilometers wide. If all the suspected water ice in the MFF melted, it would cover Mars in an ocean of water up to 2.7 m deep.
