The Oldest Sedimentary Rocks on Mars
NASA/JPL-Caltech/UArizona
The Oldest Sedimentary Rocks on Mars
ESP_049832_1560  Science Theme: Sedimentary/Layering Processes
Some of the very oldest sedimentary rocks on Mars, perhaps the best places to search for signs of ancient life, may be exposed in the deeply eroded rim of the giant Hellas impact basin. The study of such geologic strata may inform the early evolution not only of Mars, but also Earth, where such ancient rocks are poorly preserved.

A stereo pair of HiRISE images over such layered bedrock has been processed into a digital terrain model, from which we produce image products composed of color-coded elevation combined with shaded relief. We also produced a perspective view of the rugged terrain. These products were generated from observations ESP_049898_1560 and ESP_049832_1560. The color images show diverse colors, perhaps due to alteration by water.

Written by: Alfred McEwen  (12 February 2024)


This is a stereo pair with ESP_049898_1560.
 
Acquisition date
14 March 2017

Local Mars time
14:07

Latitude (centered)
-23.970°

Longitude (East)
57.358°

Spacecraft altitude
255.8 km (159.0 miles)

Original image scale range
25.6 cm/pixel (with 1 x 1 binning) so objects ~77 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
1.7°

Phase angle
31.5°

Solar incidence angle
33°, with the Sun about 57° above the horizon

Solar longitude
332.8°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  23.2°
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   (693MB)

IRB color
map-projected   (382MB)

JP2 EXTRAS
Black and white
map-projected  (297MB)
non-map           (439MB)

IRB color
map projected  (117MB)
non-map           (339MB)

Merged IRB
map projected  (174MB)

Merged RGB
map-projected  (165MB)

RGB color
non map           (351MB)
ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

DIGITAL TERRAIN MODEL (DTM)
DTM 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-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.