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Rippley Channel

Sept. 18, 2006
This image from NASA's Mars Global Surveyor shows narrow channel on the upper east flank of the martian volcano, Hadriaca Patera. Located on a volcano, this channel was likely formed by lava, perhaps as a lava tube at which the thin roof later collapsed.

18 September 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a narrow channel on the upper east flank of the martian volcano, Hadriaca Patera. Because it is located on a volcano, most likely this channel was formed by lava, perhaps as a lava tube at which the thin roof later collapsed. Large ripples of windblown sediment now occur on the channel floor; their crests are generally perpendicular to the channel walls, suggesting that winds blow up and down through this channel.

Location near: 30.5°S, 266.2°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Autumn

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