Tuesday 26 April 2011
Mission: 2001 Mars Odyssey.
Instrument: Thermal Emission Imaging System (THEMIS).
Linear ridges are located in the topographic lows in this image located just north of Meridiani Planum. The ridges are likely caused by material that filled tectonic fractures which is more resistant to erosion than the surrounding materials. When the less resistant material is removed the ridges remain to mark the location of former tectonic fractures.
Orbit Number: 39885 Latitude: 11.8474 Longitude: 0.701863 Instrument: VIS Captured: 2010-12-11 11:32.