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Tractus Fossae Collapse Pit
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Caption:
MGS MOC Release No. MOC2-419, 12 July 2003
Extensional faulting, wherein some fraction of the martian crust is pulled apart and faults are formed where the bedrock breaks, has also led to formation of collapse pits in the Tractus Fossae region. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows one such pit and the layered bedrock exposed in its walls. Dark streaks on the slopes of the pit result from avalanches of dry, fine-grained debris (probably dust, as these streaks are only found in the dust-mantled regions of Mars). This pit is located near 23.5°N, 103.8°W. Sunlight illuminates the scene 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 | Dust, Grayscale | |
| Acquisition Date | ||
| Release Date | 2003-07-17 | |
| Date in Caption | 2003-07-12 | |
| Image Credit | NASA/JPL/Malin Space Science Systems | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA04636 | |
| Identifier | PIA04636 | |
