The downdropped block of surface seen in this image captured by NASA 2001 Mars Odyssey spacecraft is called a graben. The graben is younger than the crater, since the crater is cut by the graben.
The downdropped block of surface seen in this image captured by NASA 2001 Mars Odyssey spacecraft is called a graben. The graben is younger than the crater, since the crater is cut by the graben.