PIA04113: Bouldery Trough
NASA's Mars Global Surveyor shows the interior of a trough, formed by faulting, on the lower southwest flank of Biblis Patera, a volcano in the Tharsis region of Mars. Boulders attest to the hardness of volcano rock, largely mantled with dust.
 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:  2048 x 4144 pixels (w x h) 
 Produced By:  Malin Space Science Systems 
 Producer ID:  MOC2-1160  
 Full-Res TIFF:  PIA04113.tif (8.495 MB)
 Full-Res JPEG:  PIA04113.jpg (1.362 MB)  

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:

22 July 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a 1.5 meters per pixel (~5 ft/pixel) view of the interior of a trough, formed by faulting, on the lower southwest flank of Biblis Patera, a volcano in the Tharsis region of Mars. Boulders tend to be most common in volcanic regions, attesting to the hardness of the volcanic rock. In this case, the boulders and surrounding terrain have been largely mantled with dust.

Location near: 1.3°N, 124.9°W
Image width: width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Autumn

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2005-07-22