Chemical Alteration by Water, Mawrth Vallis
Caption:
Thick stacks of clay minerals indicate chemical alteration of thick stacks of rock by interaction with liquid water on ancient Mars. Aluminum clays overlying iron/magnesium clays here in the ancient terrains of Mawrth Vallis indicate a change in environmental conditions. Aluminum clays may form by near-surface leaching while iron/magnesium clays may form in the subsurface. The image is from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter. (References: Wray
et al
., 2008; Loizeau
et al
., 2010.)
Cataloging Keywords:
Name |
Value |
Additional Values |
Target |
Mars |
|
System |
|
|
Target Type |
Planet |
|
Mission |
Mars Reconnaissance Orbiter (MRO) |
|
Instrument Host |
Mars Reconnaissance Orbiter |
|
Host Type |
Orbiter |
|
Instrument |
High Resolution Imaging Science Experiment (HiRISE) |
|
Detector |
|
|
Extra Keywords |
Color, Water |
Acquisition Date |
|
Release Date |
2011-11-21 |
Date in Caption |
|
|
Image Credit |
NASA/JPL-Caltech/Univ. of Arizona |
Source |
photojournal.jpl.nasa.gov/catalog/PIA15098 |
Identifier |
PIA15098 |