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Mars Global Surveyor
Mars Orbiter Camera

Polar Unconformity

MGS MOC Release No. MOC2-1566, 26 August 2006

Medium-sized view of MGS MOC Picture of the Day, updated daily
NASA/JPL/Malin Space Science Systems

This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layered material exposed on a slope in the north polar region. An unconformity is visible in the middle/upper left of the image, where layers are abruptly truncated. Unconformities are indicators of drastic change in the region—the lower layers were deposited first, then eroded, then the upper layers were deposited.
Location near: 81.1°N, 75.2°W
Image width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Spring

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Malin Space Science Systems and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, California. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, California and Denver, Colorado.

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