Light and Dark Slope Streaks
Caption:
21 July 2004
Dark slope streaks are a common feature on slopes thickly-mantled by dust, especially in the Tharsis, Arabia, and western Amazonis regions of Mars. Less common are light-toned slope streaks, which often occur in the same area as dark streaks. They are most common in Arabia Terra, and some are shown in this Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image. Slope streaks are probably the result of sudden avalanches of extremely dry dust. The behavior of the avalanching dust is somewhat fluid-like, and new streaks have been observed to form over intervals of a few months to a Mars year. This image is located near 13.4°N, 340.3°W, and covers an area about 3 km (1.9 mi) wide. 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 |
2004-07-21 |
| Date in Caption |
2004-07-21 |
|
| Image Credit |
NASA/JPL/Malin Space Science Systems |
| Source |
photojournal.jpl.nasa.gov/catalog/PIA06699 |
| Identifier |
PIA06699 |
