Olivine-Rich Terrain in Ganges Chasma
Olivine-Rich Terrain in Ganges Chasma
ESP_062930_1720  Science Theme: 
HiRISE has been striving to image locations that have high-resolution infrared spectral coverage by CRISM showing interesting mineralogy, but lacks HiRISE coverage to better interpret the geologic setting.

This image covers a location in which the mineral olivine was detected, and shows that the surface is ancient fractured bedrock, eroded by wind, and with a few wind-blown deposits.

Written by: Alfred McEwen  (27 February 2020)
Acquisition date
30 December 2019

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
268.5 km (166.9 miles)

Original image scale range
54.1 cm/pixel (with 2 x 2 binning) so objects ~162 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
127.9°, Northern Summer

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  36.0°
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   (169MB)

IRB color
map-projected   (104MB)

Black and white
map-projected  (71MB)
non-map           (98MB)

IRB color
map projected  (27MB)
non-map           (97MB)

Merged IRB
map projected  (185MB)

Merged RGB
map-projected  (169MB)

RGB color
non map           (88MB)
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.