This region of the ancient Southern highlands has been shaped by tectonics: faulting and folding of bedrock units.

It also has proven to be quite interesting in HiRISE color. The colors ( enhanced in the subimage ) indicate that a variety of minerals are present. This region was targeted by CRISM to follow up on a prior detection of olivine here.

Olivine, a volcanic mineral, makes the blue-green color unit seen by HiRISE.

Written by: Alfred McEwen   (14 September 2011)

This is a stereo pair with ESP_022773_1545 .

More info and image formats at http://hirise.lpl.arizona.edu/ESP_023274_1545

Image: NASA/JPL/University of Arizona