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Ascraeus Caldera Wall
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- Full-Res JPEG (836 x 1254) (205.3 kB)
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Caption:
20 May 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the wall on one of the calderae at the summit of the large volcano, Ascraeus Mons. A caldera is a large depression formed by collapse after magma in a volcano is erupted from or withdrawn to a greater depth. After collapse, the wall of this caldera was further modified by downslope movement of debris and it was pelted by small meteors to form a scattering of small craters. This image is located near 11.6°N, 104.6°W, and covers an area about 3 km (1.9 mi) across. The picture is illuminated by sunlight from the lower left.
Cataloging Keywords:
| Name | Value | Additional Values |
|---|---|---|
| Target | Mars | |
| System | ||
| Target Type | Planet | |
| Mission | Mars Global Surveyor (MGS) | |
| Instrument Host | Mars Global Surveyor | |
| Host Type | Orbiter | |
| Instrument | Mars Orbiter Camera (MOC) | |
| Detector | ||
| Extra Keywords | Crater, Grayscale, Mountain, Volcano | |
| Acquisition Date | ||
| Release Date | 2004-05-20 | |
| Date in Caption | 2004-05-20 | |
| Image Credit | NASA/JPL/Malin Space Science Systems | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA05977 | |
| Identifier | PIA05977 | |
