Bedrock Exposures on the Floor of Bakhuysen Crater
NASA/JPL/University of Arizona
Bedrock Exposures on the Floor of Bakhuysen Crater
ESP_044981_1560  Science Theme: Impact Processes
twitter  •  tumblr

HICLIP
1080p (MP4)
Audio (MP3)

WALLPAPER
800
1024
1152
1280
1440
1600
1920
2048
2560
2880
4K

HIFLYER
PDF (11 x 17)

HISLIDES
PowerPoint
Keynote
PDF

This HiRISE image shows an exposure of bedrock on the floor of Bakhuysen Crater, a 150-kilometer diameter impact crater in Noachis Terra. The bedrock is highly fragmented and fractured. The distinct false-color in the image may indicate that the tan-colored, fractured bedrock may have been altered in the presence of water.

The location of this bedrock and context of its surroundings give us significant clues to the possible water-involved origin of these materials. Numerous channels are carved into the rim of the crater. At this particular location, one such channel has deposited a smooth-textured, fan-like deposit onto the crater floor. The bedrock is now exposed at the edge of this fan-like deposit, which overlies a heavily pitted surface to the north.

The pitted surface likely represents an older impact-related deposit, possibly containing melt and rock fragments produced during the crater’s formation. If the fan formed soon after, while these deposits were still hot, the heat and any available fluids may have altered materials and were quickly transported and deposited within the crater.

This interpretation of the origin of these deposits may be further tested through data returned by HiRISE’s sister instrument, CRISM , a spectrometer also aboard MRO.

Written by: Christy Caudill, Livio Tornabene, Ian Pritchard, Eric Pilles (audio: Tre Gibbs)  (18 May 2016)

This is a stereo pair with ESP_051785_1560.
 
Acquisition date
01 March 2016

Local Mars time
15:06

Latitude (centered)
-23.685°

Longitude (East)
16.100°

Spacecraft altitude
255.4 km (158.7 miles)

Original image scale range
27.7 cm/pixel (with 1 x 1 binning) so objects ~83 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
21.8°

Phase angle
80.3°

Solar incidence angle
65°, with the Sun about 25° above the horizon

Solar longitude
116.3°, Northern Summer

For non-map projected images
North azimuth:  96°
Sub-solar azimuth:  49.4°
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   (1095MB)

IRB color
map-projected   (644MB)

JP2 EXTRAS
Black and white
map-projected  (557MB)
non-map           (530MB)

IRB color
map projected  (208MB)
non-map           (439MB)

Merged IRB
map projected  (268MB)

Merged RGB
map-projected  (253MB)

RGB color
non map           (415MB)
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.