PIA04773: Valley Near Phlegra Dorsa


Valley Near Phlegra Dorsa

Caption:

MGS MOC Release No. MOC2-499c, 30 September 2003

This February 2003 Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) picture shows a valley in the Phlegra Dorsa region of Mars near 26.3°N, 186.2°W. The valley might have formed by flowing water or lava, but very little is yet known about this valley--where is its source? where does it end? The valley is intimately associated with lava flows, and might therefore result from volcanism rather than water. The fluid responsible for the valley moved from the lower left (southwest) toward the upper right (northeast). The picture covers an area 3 km (1.9 mi) wide. The scene is illuminated by sunlight from the 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, Water
Acquisition Date
Release Date 2003-09-30
Date in Caption 2003-09-30
Image Credit NASA/JPL/Malin Space Science Systems
Source photojournal.jpl.nasa.gov/catalog/PIA04773
Identifier PIA04773