Textures in Deuteronilus Mensae
NASA/JPL/University of Arizona
Textures in Deuteronilus Mensae
ESP_018515_2225  Science Theme: Glacial/Periglacial Processes
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This enhanced color image shows the surface of a lobate debris apron in the Deuteronilus Mensae region of Mars, on the boundary between the Northern plains and Southern lowlands. These lobe-shaped formations commonly emanate from mesas in this region and have pitted, lineated textures that suggest the flow of water ice.

Results from the SHARAD (SHAllow RADar) instrument on MRO indicate that lobate debris aprons in Deuteronilus Mensae, similar to those visible here, are composed of material dominated by ice and are interpreted to be potential debris-covered glaciers or rock glaciers.

These debris apron surfaces are also covered by an ice-rich deposit that we’ve observed draping over entire regions in the mid-latitudes of Mars. It is this mantling deposit that filled in the crater, with its subsequent removal around the outer margins, probably due to differential sublimation of the ice. The same textures in the center of the crater are like those of the surrounding terrain.

Written by: Dan Berman  (18 September 2017)
 
Acquisition date
09 July 2010

Local Mars time
15:15

Latitude (centered)
42.131°

Longitude (East)
27.346°

Spacecraft altitude
300.2 km (186.6 miles)

Original image scale range
30.1 cm/pixel (with 1 x 1 binning) so objects ~90 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
3.1°

Phase angle
41.9°

Solar incidence angle
45°, with the Sun about 45° above the horizon

Solar longitude
115.7°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  354.8°
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   (588MB)

IRB color
map-projected   (253MB)

JP2 EXTRAS
Black and white
map-projected  (282MB)
non-map           (259MB)

IRB color
map projected  (86MB)
non-map           (193MB)

Merged IRB
map projected  (158MB)

Merged RGB
map-projected  (154MB)

RGB color
non map           (185MB)
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.