Scarp and Landslides
Scarp and Landslides
PSP_005343_2170  Science Theme: Mass Wasting Processes
This observation shows an equatorial scarp (cliff) with possible landslides and boulder tracks.

The cliff has several distinct layers visible near its top. There is a smoother, possibly fine-grained layer on top, underlain by a relatively bright and a dark layer. It is possible that the entire cliff face consists of layers but that erosion has not exposed others yet.

There are two main landslide scars, locations where a landslide has carved into the slope. Both of the scars have boulder tracks, several of which have boulders at their ends as they progress down the slope or reach the end of the slope. The subimage (approximately 480 meters across) shows boulder tracks from the landslide scar on the left side of the image. Some boulders can be seen forming trails along the slope at the top part of the subimage, while others can be seen at the end of their trails. For example, see the two boulders just right of center at the bottom of the subimage.

Written by: Kelly Kolb  (21 November 2007)
Acquisition date
16 September 2007

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
296.1 km (184.0 miles)

Original image scale range
59.3 cm/pixel (with 2 x 2 binning) so objects ~178 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
62°, with the Sun about 28° above the horizon

Solar longitude
315.0°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  311.0°
Black and white
map projected  non-map

IRB color
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Merged IRB
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Merged RGB
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RGB color
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Black and white
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IRB color
map-projected   (238MB)

Black and white
map-projected  (290MB)
non-map           (296MB)

IRB color
map projected  (143MB)
non-map           (258MB)

Merged IRB
map projected  (590MB)

Merged RGB
map-projected  (547MB)

RGB color
non map           (246MB)
B&W label
Color label
Merged IRB label
Merged RGB label
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IRB: infrared-red-blue
RGB: red-green-blue
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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

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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.