Hebes and Ophir Chasmata

Today's VIS image shows part of two chasmatas - Hebes Chasma at the top of the image and Ophir Chasma at the bottom. Both chasmata have large landslide deposits. Ophir Chasma has a large layered deposit, which has subsequently been eroded by wind and fluvial processes (bottom of image). Hebes Chasma is an inclosed basin not connected to Valles Marineris. It is 319 km long (east/west, 198 miles), 130 km wide (north/south, 81miles) and up to 8km (5 miles) deep. Ophir Chasma is approximately 317km long (197 miles) and is part of the Valles Marineris system of canyons.