Slumping Terraces on a Crater Wall
NASA/JPL/UArizona
Slumping Terraces on a Crater Wall
ESP_035702_2270  Science Theme: Impact Processes
This image shows the western rim of a well-preserved 8.5-kilometer (about 5 miles) diameter impact crater.

The wall features a slumped terrace that extends all the way around the crater diameter (the adjacent image show the rest of the terrace). This slumped terrace, a result of the crater formation process, gives the crater a concentric ringed appearance.

Terraces are an expected feature in Martian craters of this size or larger, as the material strength of the surface is overcome by the force of all-of-the-sudden-missing mass. Blocks of rock slump down the steep crater walls and slide inward (by contrast, terraces in smaller craters are often the product of an impact of an object into a surface with layers of differing material strength).



Written by: Nicole Baugh (audio: Tre Gibbs)  (9 April 2014)

This is a stereo pair with ESP_035768_2270.
 
Acquisition date
09 March 2014

Local Mars time
15:05

Latitude (centered)
46.548°

Longitude (East)
238.867°

Spacecraft altitude
296.8 km (184.5 miles)

Original image scale range
60.2 cm/pixel (with 2 x 2 binning) so objects ~181 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
9.8°

Phase angle
52.6°

Solar incidence angle
43°, with the Sun about 47° above the horizon

Solar longitude
99.9°, Northern Summer

For non-map projected images
North azimuth:  98°
Sub-solar azimuth:  352.8°
JPEG
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

JP2
Black and white
map-projected   (492MB)

IRB color
map-projected   (288MB)

JP2 EXTRAS
Black and white
map-projected  (264MB)
non-map           (218MB)

IRB color
map projected  (94MB)
non-map           (224MB)

Merged IRB
map projected  (476MB)

Merged RGB
map-projected  (436MB)

RGB color
non map           (209MB)
ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

ADDITIONAL INFORMATION
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products
HiView

NB
IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

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

USAGE POLICY
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

POSTSCRIPT
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.