This Mars Global Surveyor (MGS) Orbiter Camera (MOC) image shows an inverted channel running down, through a valley in the Memnonia Sulci region of Mars. The original channel is gone, as are the rocks through which it cut. The channel floor and/or the material that filled the channel was more resistant to erosion, and thus left standing high as a ridge. Inverted channels and valleys are common on Mars. Many old valley networks have been filled, buried, and in some cases, exhumed and inverted, all across the planet.
Location near
: 11.4°S, 174.4°W
Image width
: ~3.0 km (~1.9 mi)
Illumination from
: upper left
Season
: Southern Winter
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 | 2005-02-20 | |
Date in Caption | ||
Image Credit | NASA/JPL/Malin Space Science Systems | |
Source | photojournal.jpl.nasa.gov/catalog/PIA07376 | |
Identifier | PIA07376 |