Raised Bedrock in Terra Cimmeria
NASA/JPL/University of Arizona
Raised Bedrock in Terra Cimmeria
ESP_013514_1630  Science Theme: Geologic Contacts/Stratigraphy

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Large impact craters have central hills or mountains, because the tremendous shock waves from the impact first compresses the ground, then causes a rebound when it becomes uncompressed. This effectively raises bedrock that was once deeply buried to the surface.

Furthermore, some of the most interesting bedrock on Mars is amongst the oldest and deeply buried. Thus, these crater central uplifts act as windows into ancient Mars, and enable us to peer into a time when certain geologic processes were more active than today.

The enhanced colors in this image reflect different bedrock compositions. Some of the large blocks are broken up and jumbled by this impact event or were resampled from previous large impacts.

Written by: Alfred McEwen  (5 January 2017)

This is a stereo pair with ESP_013092_1630.

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Acquisition date
14 June 2009

Local Mars time:
14:50

Latitude (centered)
-16.898°

Longitude (East)
129.068°

Range to target site
284.4 km (177.7 miles)

Original image scale range
56.9 cm/pixel (with 2 x 2 binning) so objects ~171 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
25.0°

Phase angle:
16.2°

Solar incidence angle
40°, with the Sun about 50° above the horizon

Solar longitude
285.0°, Northern Winter

North azimuth:
97°

Sub-solar azimuth:
347.5°
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ADDITIONAL INFORMATION
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IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

USAGE POLICY
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona



Postscript
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.