Contact between Two Distinct Types of Bedrock Northwest of Hellas Planitia
NASA/JPL/University of Arizona
Contact between Two Distinct Types of Bedrock Northwest of Hellas Planitia
ESP_047762_1585  Science Theme: Geologic Contacts/Stratigraphy


HICLIP

1080p (MP4)
720p (MP4)
Listen to the text

WALLPAPER

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

HIFLYER

PDF, 11 x 17 in

HISLIDES

PowerPoint
Keynote
PDF
In this context image is an old degraded crater that has undergone a complex history of burial and erosion. The image shows a surface with at least two types of exposed bedrock, one that is light-toned and one that is dark. An enhanced color infrared image highlights these two exposures in yellows and blues, which such colors representing altered and unaltered surfaces, respectively.

The overlying, rougher blueish-toned bedrock appears to have undergone the most extensive erosion, revealing the smoother, fractured yellowish-toned bedrock below. We see windblown (aeolian) bedforms across the image, possibly the culprit behind the erosive forces that have removed and uncovered the underlying yellowish-toned bedrock visible today.

Written by: Elise Harrington, Arya Bina, Eric Pilles, and Livio Tornabene (audio: Tre Gibbs)  (25 January 2017)
twitter  •  facebook  •  google+  •  tumblr
 
Acquisition date
04 October 2016

Local Mars time:
15:14

Latitude (centered)
-21.106°

Longitude (East)
52.042°

Range to target site
256.2 km (160.1 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:
0.2°

Phase angle:
45.3°

Solar incidence angle
45°, with the Sun about 45° above the horizon

Solar longitude
235.0°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  357.6°
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   (460MB)

IRB color
map-projected   (264MB)

JP2 EXTRAS
Black and white
map-projected  (182MB)
non-map           (300MB)

IRB color
map projected  (61MB)
non-map           (238MB)

Merged IRB
map projected  (123MB)

Merged RGB
map-projected  (117MB)

RGB color
non map           (238MB)
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.