CRISM: Carbonate minerals near Huygens Crater

Here we see Fe/Ca carbonates (pink) along the southeastern wall of an unnamed crater’s central pit. Because these carbonates are seen in the central pit, it is thought that they were formed in the subsurface (underground) but then brought up and exposed by the impact that formed this crater. The high resolution image on the right shows a close up of the location of the carbonates…. [More at link]