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South Mid-latitude Gullies November 19, 2005

Posted by jtintle in JPL, Mars, Mars Global Surveyor, NASA, Space Fotos.
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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 deep gullies cut into the wall of a south mid-latitude crater. Erosion has exposed layers in the upper wall of the crater; it is possible that groundwater seeping through a layer or layers in the wall led to the genesis of the gullies. The banked nature of the gully channels suggests that a liquid was involved.
Location near: 35.5°S, 194.8°W
Image width: ~2 km (~1.2 mi)
Illumination from: upper left
Season: Southern Spring
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