PIA04715: Alpine Glaciers
Target Name: Mars
Is a satellite of: Sol (our sun)
Mission: 2001 Mars Odyssey
Spacecraft: 2001 Mars Odyssey
Instrument: THEMIS
Product Size: 1333 x 3066 pixels (width x height)
Produced By: Arizona State University
Full-Res TIFF: PIA04715.tif (2.861 MB)
Full-Res JPEG: PIA04715.jpg (483.4 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:


Released 27 August 2003

This image shows part of the western flank of Arsia Mons, the southernmost of the three great Tharsis Montes. The surface shows parallel ridges more reminiscent of a Zen garden than any typical geological feature. These ridges are not typical of lava flow fronts, so a different explanation has been proposed by Mars scientists. These ridges may instead be ancient signs of previously existing glaciers that formed high on the volcano's flank. As glaciers retreat with the seasons and shifting climate, they leave behind a mound of debris along their receding edge. Successive retreats can produce a series of parallel ridges similar to those seen here.

Image information: VIS instrument. Latitude -6.9, Longitude 230.5 East (129.5 West). 19 meter/pixel resolution.

Image Credit:
NASA/JPL/Arizona State University

Image Addition Date:
2003-09-03