Mawrth Vallis
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Mawrth Vallis is a valley on Mars, located in the Oxia Palus quadrangle at 22.3°N, 343.5°E with an elevation approximately two kilometers below datum. Situated between the southern highlands and northern lowlands, the valley is a channel formed by massive flooding which occurred in Mars’ ancient past. It is an ancient water outflow channel with light-colored clay-rich rocks.
Mawrth Vallis
Comparison of TES and THEMIS spatial resolution.
Colour variations in Mawrth Vallis are among the most spectacular on Mars.
CRISM Visible and IR images of Mawrth Vallis. Top left: True color visible image of Mawrth Vallis. Top right: False color infrared reflectance. Bottom left: Detection of an Fe-rich smectite, nontronite, found primarily in the lower elevations of Mawrth Vallis. Bottom right: Detection of an Al-rich smectite, montmorillonite, found primarily at higher elevations than nontronite.
Oxia Palus quadrangle
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The Oxia Palus quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Oxia Palus quadrangle is also referred to as MC-11.
Image of the Oxia Palus Quadrangle (MC-11). The region contains heavily cratered highlands in the southeast which are intersected by several large outflow channels terminating in the relatively smooth plains of Chryse basin in the northwest.
The Sojourner Rover is taking its Alpha Proton X-ray Spectrometer measurement of the Yogi Rock (NASA). Note: Sojourner Rover was the rover part of the Mars Pathfinder. It rolled off of the lander. This picture was taken by the lander.
Erosion in Aram Chaos, as seen by THEMIS
Blocks in Aram showing possible source of water, as seen by THEMIS