PIA05480_modest.jpg
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Summary
Description PIA05480 modest.jpg |
English:
This image, taken by the microscopic imager on the Mars Exploration Rover Opportunity, shows an extreme close-up of the "El Capitan" region, part of the rock outcrop at Meridiani Planum, Mars. As seen in panoramic images of "El Capitan," this region appears laminated, or composed of layers of firmly united material. The upper left portion of this image shows how the grains of the region might be arranged in planes to create such lamination.
At the upper right, in the zone surrounding two larger sphere-shaped particles, this image also shows another apparent characteristic at the scale of individual grains. The granularity of the matrix -- the rock in which the spherules are embedded -- is modified near the spherules compared with grains farther from the spherules. Around the upper spherule, the grain size is increased. This change in grain size might represent a "reaction rim," a feature produced by fluid interaction with the matrix material adjacent to the spherule during the growth of the spherule.
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Source | http://photojournal.jpl.nasa.gov/catalog/pia05480 |
Author | NASA/JPL/US Geological Survey |
Permission
( Reusing this file ) |
PD-USGOV-NASA. |
This image or video was catalogued by Jet Propulsion Laboratory of the United States
National Aeronautics and Space Administration
(NASA) under
Photo ID:
PIA05480
.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing .
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Licensing
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This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .) | ||
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Original upload log
The original description page was
here
. All following user names refer to en.wikipedia.
- 2004-03-02 23:40 Perl 999×1000× (168601 bytes) This image, taken by the microscopic imager on the Mars Exploration Rover Opportunity, shows an extreme close-up of the "El Capitan" region, part of the rock outcrop at Meridiani Planum, Mars. As seen in panoramic images of "El Capitan," this region appea