Different Materials Exposed along a Wallrock Slope in Coprates Chasma
NASA/JPL/University of Arizona
Different Materials Exposed along a Wallrock Slope in Coprates Chasma
ESP_027063_1655  Science Theme: Geologic Contacts/Stratigraphy
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This image shows several kilometers of topography exposed along the wallrock within Coprates Chasma. Higher topography is towards the bottom of the image while the floor of Coprates Chasma is visible at the top of the image.

There are patches of brighter materials exposed within the wallrock and along the chasma floor. The bright massive rocks exposed in the wallrock likely represent weathered rocks that have altered to this brighter material.

Lower down the wallrock and along the chasma floor, the brighter material appears layered and could represent sediments deposited within the chasma when water or ice may have existed here. The image also shows finer material composed of eroded wallrock and eolian debris that is mass wasting downslope.

Written by: Cathy Weitz  (30 May 2012)

This is a stereo pair with ESP_026786_1655.
 
Acquisition date
05 May 2012

Local Mars time
15:21

Latitude (centered)
-14.354°

Longitude (East)
304.634°

Spacecraft altitude
259.3 km (161.1 miles)

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6.2°

Phase angle
58.3°

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63°, with the Sun about 27° above the horizon

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106.1°, Northern Summer

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POSTSCRIPT
NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.