Layers in Gale Crater
NASA/JPL/University of Arizona

Layers in Gale Crater
PSP_001897_1745  Science Theme: Aeolian Processes
Spanish Italian 


This HiRISE image covers a portion of the layered deposits in Gale crater, but is located to the southeast of the main stack of the deposits and is perhaps revealing a lower part of the section.

The deposits are remarkably uniform at submeter scales and are not comprised of loose sediment, as evidenced by numerous fractures and scarps that run through and along some layers.

Though there are a few impact craters preserved, wind erosion has stripped and etched the surface of the layers, producing few large blocks and little in the way of talus or other debris.

The deposit's uniform character—and the manner of erosion—suggests it is comprised of fine-grained sediments, perhaps an accumulation of dust or volcanic ash blown in by the wind.

Written by: John Grant   (11 April 2007)

  Click to share this post on Twitter Click to share this post on Facebook Click to share this post on Google+ Click to share this post on Tumblr


 Image Products: All image links are drag & drop for HiView, or click to download
JPEG
Grayscale: map projected  non-map
IRB color: map projected  non-map
Merged IRB: map projected
Merged RGB: map projected
RGB color: non-map projected

JP2 DOWNLOAD
Grayscale: map-projected (1068.4 MB)
IRB color: map-projected (566.1 MB)

JP2 EXTRAS
Grayscale: map-projected  (483.2 MB),
non-map  (637.5 MB)
IRB color: map projected  (195.4 MB)
non-map  (476.9 MB)
Merged IRB: map projected  (266.8 MB)
Merged RGB: map-projected  (271.0 MB)
RGB color: non map-projected  (443.1 MB)

ADDITIONAL IMAGE INFORMATION
Grayscale label   Color label
Merged IRB label   Merged RGB label
EDR products

About color products (PDF)
HiView main page

 Observation Toolbox
Acquisition date:22 December 2006 Local Mars time: 3:38 PM
Latitude (centered):-5.308° Longitude (East):138.293°
Range to target site:267.3 km (167.1 miles)Original image scale range:26.7 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:2.4° Phase angle:54.4°
Solar incidence angle:57°, with the Sun about 33° above the horizon Solar longitude:154.3°, Northern Summer
For non-map projected products:
North azimuth:97° Sub-solar azimuth:21.6°
For map-projected products
North azimuth:270°Sub solar azimuth:196.4°

Context map

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: Image: NASA/JPL/University of Arizona
Postscript
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.