Memnonia Sulci Yardangs
Caption:
8 December 2004
Yardangs are ridges formed by wind erosion. Most commonly, they will form in sedimentary rocks or volcanic ash deposits containing some amount of sand-sized grains (particles of 0.0625 to 2.0 millimeters size, like the grains in common table salt). This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a suite of yardangs in the Memnonia Sulci region. The scene is located near 9.3°S, 172.4°W, and covers an area about 3 km (1.9 mi) wide. The ridges are illuminated by sunlight from the upper 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 |
Grayscale, Volcano |
Acquisition Date |
|
Release Date |
2004-12-08 |
Date in Caption |
2004-12-08 |
|
Image Credit |
NASA/JPL/Malin Space Science Systems |
Source |
photojournal.jpl.nasa.gov/catalog/PIA07123 |
Identifier |
PIA07123 |