Layered Deposits within Unnamed Crater in Arabia Terra
NASA/JPL/UArizona
Layered Deposits within Unnamed Crater in Arabia Terra
PSP_009180_1840  Science Theme: Sedimentary/Layering Processes
Arabia Terra is an area of Mars that has an abundance of layered deposits within impact craters.

The region of Arabia has plateau material that is thought to be part of the ancient highland crust that is Noachian in age according to Martian timescale. Thus, the layered deposits may represent some of the earliest eroded and infilled materials on Mars. In this unnamed crater, we see layering exposed along the margins of a scarp-like bench.

The layering is of particular interest because on Earth, they may represent multiple sequences of deposited material or some geologic process (subaerial or subaqueous) that has modified and/or deposited material on the surface in some constant fashion. If the layered sequences are consistently the same, we can infer that the conditions of their deposition were the same for some period of time. If the layers changed in some way (e.g., thickens and thins), then we can infer that some condition(s) caused this to happen. From these observations and analyses, scientists can attempt to quantify and reconstruct what the ancient conditions were like in this region of Mars.



Written by: Frank Chuang  (27 August 2008)
 
Acquisition date
11 July 2008

Local Mars time
15:26

Latitude (centered)
3.755°

Longitude (East)
9.627°

Spacecraft altitude
272.6 km (169.4 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
Equirectangular

Emission angle
8.6°

Phase angle
46.9°

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

Solar longitude
97.3°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  34.2°
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   (1400MB)

IRB color
map-projected   (623MB)

JP2 EXTRAS
Black and white
map-projected  (761MB)
non-map           (700MB)

IRB color
map projected  (213MB)
non-map           (544MB)

Merged IRB
map projected  (321MB)

Merged RGB
map-projected  (309MB)

RGB color
non map           (579MB)
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.