In some regions of Mars the relative ages of different materials can be determined. One example is shown in this VIS image. Here the younger lava flows of Daedalia Planum are on top of the older Terra Sirenum materials. The crater rim of older material is inundated by the younger flows.
Orbit Number: 36871 Latitude: -22.6534 Longitude: 216.746 Instrument: VIS Captured: 2010-04-07 05:34
Please see the THEMIS Data Citation Note for details on crediting THEMIS images.
NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Science Mission Directorate, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.