Ophir and Candor Chasmata

Today's VIS image shows western parts of Ophir Chasma (top of image) and Candor Chasma (bottom of image). Both are part of Valles Marineris. Candor Chasma is approximately 810 km long (503 miles) and is divided into two regions - eastern and western Candor. Ophir Chasma is approximately 317km long (197 miles). The floors of both chasmata include a variety of landforms, including layered deposits, dunes, landslide deposits and steep sided cliffs and mesas. Many forms of erosion have shaped both chasmata. There is evidence of wind and water erosion, as well as significant gravity driven mass wasting (landslides).