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