HiRISE | Purple Mountain’s Majesty (ESP_041088

NASA/JPL-Caltech/UArizona

Purple Mountain’s Majesty
ESP_041088_1535 Science Theme: Geologic Contacts/Stratigraphy

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This image of an isolated mountain in the Southern highlands reveals a large exposure of “purplish” bedrock.

Since HiRISE color is shifted to longer wavelengths than visible color and given relative stretches, this really means that the bedrock is roughly dark in the broad red bandpass image compared to the blue-green and near-infrared bandpass images.

In the RGB (red-green-blue) color image, which excludes the near-infrared bandpass image, the bedrock appears bluish in color. This small mountain is located near the northeastern rim of the giant Hellas impact basin, and could be impact ejecta.

Written by: Alfred McEwen (narration: Tre Gibbs) (15 July 2015)

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   (177MB)

IRB color
map-projected   (98MB)

JP2 EXTRAS
Black and white
map-projected (90MB)
non-map           (103MB)

IRB color
map projected (31MB)
non-map           (86MB)

Merged IRB
map projected (166MB)

Merged RGB
map-projected (161MB)

RGB color
non map           (86MB)

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-Caltech/UArizona

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.