PIA05790: Collapsed Subsurface Channel
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Global Surveyor (MGS)
 Spacecraft:  Mars Global Surveyor Orbiter
 Instrument:  Mars Orbiter Camera (MOC)
 Product Size:  672 x 1008 pixels (w x h)
 Produced By:  Malin Space Science Systems
 Producer ID:  MOC2-698
 Full-Res TIFF:  PIA05790.tif (678.3 kB)
 Full-Res JPEG:  PIA05790.jpg (167 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

16 April 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows evidence of a collapsed lava tube (or other form of subterranean channel)on the plains northwest of the Elysium volcanoes. Lava or another fluid (e.g., water) was transported through a subsurface channel; later, the roof collapsed to form a series of pits and troughs, revealing the channel's location. This landform is located near 32.7N, 219.5W. The image covers an area about 3 km (1.9 mi) across. Sunlight illuminates the scene from the lower left.

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2004-04-16