Landslide in Shalbatana Vallis
Landslide in Shalbatana Vallis
PSP_005965_1855  Science Theme: Landscape Evolution
Shalbatana Vallis is a large channel that may be the result of lake formation and subsequent drainage from Ganges Chasma.

The valley has steep walls and a flat floor. Recently, a section of the steep wall collapsed and produced a landslide into the valley floor. This HiRISE image appears to show the source of this landslide to be a collapsed spur. The newly exposed surface has little dust coverage and is more blue in color when compared to the surrounding surface. It therefore appears quite fresh.

The debris in the valley floor is also interesting; the edges of the debris flow appear to be quite steep and surrounded by dunes.

Written by: Nicolas Thomas  (21 November 2007)

This is a stereo pair with ESP_011529_1855.
Acquisition date
04 November 2007

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
273.4 km (169.9 miles)

Original image scale range
27.7 cm/pixel (with 1 x 1 binning) so objects ~83 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
36°, with the Sun about 54° above the horizon

Solar longitude
341.8°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  344.7°
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Black and white
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non-map           (795MB)

IRB color
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Merged IRB
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RGB color
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Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.