HiRISE | Layered Deposits within Unnamed Crater in Arabia Terra (PSP_008982

NASA/JPL-Caltech/UArizona

Layered Deposits within Unnamed Crater in Arabia Terra
PSP_008982_1965 Science Theme: Sedimentary/Layering Processes

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This image shows the floor of an unnamed impact crater in Arabia Terra that has layered deposits. There are many craters in this region where layering is observed.

These layers are often exposed along the sides of large isolated mounds, small knobs and mesas, and other positive relief features. In some cases, the layering is expressed as narrow sinuous ridge-like structures along crater floors.

The presence of layered deposits is of particular interest because these materials are not likely to be related to the impact event, but rather post-impact infill of the crater. Modification of the deposits has now revealed layers of material.

HiRISE and other instruments onboard the Mars Reconnaissance Orbiter may provide more clues to the origin of the these deposits.

Written by: Frank Chuang (6 August 2008)

Acquisition date
26 June 2008

Local Mars time
15:18

Latitude (centered)
16.152°

Longitude (East)
13.147°

Spacecraft altitude
280.8 km (174.5 miles)

Original image scale range
28.1 cm/pixel (with 1 x 1 binning) so objects ~84 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
1.0°

Phase angle
47.9°

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

Solar longitude
90.5°, Northern Summer

For non-map projected images
North azimuth: 97°
Sub-solar azimuth: 25.9°

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   (1019MB)

IRB color
map-projected   (439MB)

JP2 EXTRAS
Black and white
map-projected (537MB)
non-map           (502MB)

IRB color
map projected (156MB)
non-map           (395MB)

Merged IRB
map projected (228MB)

Merged RGB
map-projected (220MB)

RGB color
non map           (412MB)

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-Caltech/UArizona

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.