Exposing Memnonia Terrain
Caption:
21 June 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the results of a process that is underway in the Memnonia uplands near 12.9°S, 152.7°W, to strip away one layer of material and reveal a formerly-buried landscape from beneath. All of the area shown here was once covered by a material that has been eroded by wind to form the sharp-crested, nearly-parallel ridges that run diagonally from the upper left toward lower right in this image. These ridges are a classic wind erosion form, known as a
yardang
. The image covers an area about 3 km (1.9 mi) wide and is illuminated by sunlight from the left/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 |
Acquisition Date |
|
Release Date |
2004-06-21 |
Date in Caption |
2004-06-21 |
|
Image Credit |
NASA/JPL/Malin Space Science Systems |
Source |
photojournal.jpl.nasa.gov/catalog/PIA06325 |
Identifier |
PIA06325 |