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Amazonis Yardangs
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- Full-Res JPEG (836 x 4389) (673.2 kB)
- Full-Res TIFF (836 x 4389) (3.7 MB)
Caption:
26 August 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows yardangs -- a typical ridge pattern formed by wind erosion -- in southern Amazonis. Some time after the wind erosion occurred, conditions changed and, instead of erosion, the region experienced deposition by a relatively thin, uniform coating of dust. It is this coating of dust that gives the region a monotone appearance. Dark streaks occurring on slopes are formed by avalanching of the dry dust.
Location near
: 10.1°N, 156.9°W
Image width
: width: ~3 km (~1.9 mi)
Illumination from
: lower left
Season
: Northern Autumn
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 | 2005-08-26 | |
| Date in Caption | 2005-08-26 | |
| Image Credit | NASA/JPL/Malin Space Science Systems | |
| Source | photojournal.jpl.nasa.gov/catalog/PIA04170 | |
| Identifier | PIA04170 | |
