Steamlined Landforms in Western Charitum Montes
NASA/JPL/University of Arizona
Steamlined Landforms in Western Charitum Montes
PSP_003711_1275  Science Theme: Glacial/Periglacial Processes
twitter  •  tumblr

WALLPAPER
800
1024
1152



This observation shows part of a semi-circular embayment in the side wall of a valley. The valley is located in the Southern hemisphere of Mars near the rim of the Argyre impact basin in the western Charitum Montes. The bottom of the image is near the top of the valley side wall and the top of the image shows the edge of the valley floor.

Several streamlined landforms are visible on the wall of the valley. They have irregular shapes but are generally streamlined and are oriented in the direction of maximum slope. The streamlined hills vary in dimensions with widths up to hundreds of meters and lengths of more than a kilometer.

Near the top of the valley wall (near the bottom of the image) are several long and linear grooves. The grooves are locally parallel and are also oriented in the approximate downhill direction.

These features may have formed from what are called mass wasting processes, fluvial erosion, or possibly erosion from strong winds. However, landforms in the surrounding area strongly suggest that this region was sculpted by glacial processes. The grooves may have formed by glacial erosion where rocks at the bottom of the ice grind against and scour the underlying bedrock.The orientation of the streamlined hills is also consistent with glacially sculpted bedrock or subglacial till deposits.

Future high resolution stereo imaging should reveal more diagnostic details, such as shape, symmetry, and relief, in the streamlined features.

Written by: Maria Banks  (15 August 2007)

This is a stereo pair with PSP_005333_1275.
 
Acquisition date
12 May 2007

Local Mars time
15:37

Latitude (centered)
-52.312°

Longitude (East)
300.895°

Spacecraft altitude
250.9 km (155.9 miles)

Original image scale range
25.1 cm/pixel (with 1 x 1 binning) so objects ~75 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
1.0°

Phase angle
51.4°

Solar incidence angle
52°, with the Sun about 38° above the horizon

Solar longitude
236.5°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  21.3°
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   (1541MB)

IRB color
map-projected   (733MB)

JP2 EXTRAS
Black and white
map-projected  (744MB)
non-map           (1011MB)

IRB color
map projected  (354MB)
non-map           (713MB)

Merged IRB
map projected  (408MB)

Merged RGB
map-projected  (394MB)

RGB color
non map           (716MB)
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.