Date:June 3 2013
Height: 8.25 in
Width: 18 in
Note: Frame Dimensions: 15" x 24"
This map from the European Space Agency’s Mars Express shows deposits of the mineral pyroxene over a background image from NASA’s Global Surveyor. Because pyroxene results from volcanic processes, its chemical composition reveals the evolution of the temperature and pressure in the planet’s interior. Concentrations of pyroxene are indicated from low (blue) to high (red).