This map showing the location of some clay minerals in of a portion of the
Mawrth Vallis region of Mars covers an area about 10 kilometers (6.2 mile)
wide. The map is draped over a topographical model that exaggerates the
vertical dimension tenfold.
The mineral mapping information comes from an image taken on Sept. 21,
2007, by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM).
Iron-magnesium phyllosilicate is shown in red. Aluminum phyllosyllicate is
shown in blue. Hydrated silica and a ferrous iron phase are shown in
yellow/green.
The topographical information comes from the Mars Orbiter Laser Altimeter
instrument on NASA's Mars Global Surveyor orbiter.
Mawrth Vallis is an outflow channel centered near 24.7 degrees north
latitude, 339.5 degrees east longitude, in northern highlands of Mars.
CRISM is one of six science instruments on the Mars Reconnaissance
Orbiter. Led by The Johns Hopkins University Applied Physics Laboratory,
Laurel, Md., the CRISM team includes expertise from universities,
government agencies and small businesses in the United States and abroad.
NASA's Jet Propulsion Laboratory, a division of the California Institute
of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for
NASA's Science Mission Directorate, Washington. Lockheed Martin Space
Systems, Denver, built the orbiter.
