Public domain
Deposits along the Northern Wall of Melas Chasma
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
It has been known since the 1970s when the Viking orbiters took pictures of Mars that there are large (i.e., several kilometers-thick) mounds of light-toned deposits within the central portion of Valles Marineris. More recent higher resolution images of Mars, including this image of Melas Chasma, show that the wall rocks of Valles Mariners also contain similar, albeit thinner, light-toned deposits. Spectral data from the CRISM instrument indicate that the larger mounds are composed of sulfates.
NASA Image and Video Library’s own descriptionCredit lineDeposits along the Northern Wall of Melas Chasma. NASA/JPL, 2016-10-05. Public domain. ID: PIA21102.