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Sirenum Fossae Troughs

Oct. 21, 2005
NASA's Mars Global Surveyor shows two troughs/depressions formed along the trend of the Sirenum Fossae, a suite of very extensive troughs formed by faults that are radial to the giant Tharsis Bulge on Mars.

21 October 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows two troughs/depressions formed along the trend of the Sirenum Fossae, a suite of very extensive troughs formed by faults that are radial to the giant Tharsis Bulge. As the Tharsis region bulged outward, adjacent terrain expanded and formed a series of long, extensional fault systems.

Location near: 26.4°S, 142.4°W
Image width: width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Southern Spring

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