Exposing the Rock in Impact Craters
NASA/JPL/University of Arizona
Exposing the Rock in Impact Craters
ESP_057866_1670  Science Theme: 
twitter  •  tumblr

HICLIP
1080p (MP4)
Audio (MP3)

WALLPAPER
800
1024
1152
1280
1440
1600
1920
2048
2560
2736
2880
4500
4K
8K
10K

HIFLYER
PDF (11 x 17)

HISLIDES
PowerPoint
Keynote
PDF

In this complex crater (about 44-kilometers in diameter), we see bedrock in several locations from different depths in the crust. The central uplift exposes large fragments of green-toned bedrock that possibly originated from several kilometers beneath the surface.

To the south of the crater, we see more of this bedrock along with material that was excavated and thrown out after the impact. In craters of this size, the rim is unstable and collapses inwards forming terraces, which occasionally exposes more bedrock that would have originated from close to the surface than the rocks exposed within the uplift itself. Central uplifts have better exposures of bedrock, but in this example the terraces steal the show, displaying beautiful green- and light-toned bedrock at multiple locations.

Written by: Eric Pilles and Livio Tornabene (audio: Tre Gibbs)  (4 February 2019)

This is a stereo pair with ESP_057932_1670.
 
Acquisition date
30 November 2018

Local Mars time
14:10

Latitude (centered)
-12.944°

Longitude (East)
331.358°

Spacecraft altitude
261.8 km (162.7 miles)

Original image scale range
53.4 cm/pixel (with 2 x 2 binning) so objects ~160 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
10.4°

Phase angle
42.5°

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

Solar longitude
297.8°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  344.6°
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   (364MB)

IRB color
map-projected   (212MB)

JP2 EXTRAS
Black and white
map-projected  (200MB)
non-map           (188MB)

IRB color
map projected  (92MB)
non-map           (216MB)

Merged IRB
map projected  (401MB)

Merged RGB
map-projected  (364MB)

RGB color
non map           (200MB)
ANAGLYPHS
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph 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/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.