Diverse Deposits in Melas Chasma
Diverse Deposits in Melas Chasma
ESP_041134_1720  Science Theme: Sedimentary/Layering Processes
This scene includes chaotic deposits with a wide range of colors. The deposits are distinctive with both unique colors and small-scale textures such as fracture patterns.

These are probably sedimentary rocks, transported and deposited in water or air. The original layers may have been jumbled in a landslide. Dark or reddish sand dunes cover some of the bedrock.

Written by: Alfred McEwen (audio: Tre Gibbs)  (29 July 2015)
Acquisition date
06 May 2015

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
263.9 km (164.0 miles)

Original image scale range
26.6 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
34°, with the Sun about 56° above the horizon

Solar longitude
337.8°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  1.9°
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

Black and white
map-projected   (671MB)

IRB color
map-projected   (378MB)

Black and white
map-projected  (319MB)
non-map           (385MB)

IRB color
map projected  (130MB)
non-map           (314MB)

Merged IRB
map projected  (164MB)

Merged RGB
map-projected  (157MB)

RGB color
non map           (310MB)
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

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

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

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.