
Memnonia Fossae
Huge fractures cutting through the surface of Terra Sirenum are called Memnonia Fossae. The term fossae means linear depression. This image is from NASA 2001 Mars Odyssey.

Huge fractures cutting through the surface of Terra Sirenum are called Memnonia Fossae. The term fossae means linear depression. This image is from NASA 2001 Mars Odyssey.