Layering in Mawrth Vallis Crater
NASA/JPL/UArizona
Layering in Mawrth Vallis Crater
ESP_020297_2045  Science Theme: Geologic Contacts/Stratigraphy
Mawrth Vallis has a rich mineral diversity, including clay minerals that formed by the chemical alteration of rocks or loose regolith" (soil) by water. There is a high surface area of bedded phyllosilicate (clay) exposures (tens of kilometers), located in the bright-toned materials.

The CRISM instrument on the MRO spacecraft detects a variety of clay minerals here, which could signify different processes of formation. The high resolution of the HiRISE camera helps us to see and trace out layers, polygonal fractures, and with CRISM, examine the distribution of various minerals across the surface.

This surface is scientifically compelling for the Mars Science Laboratory (MSL) rover Curiosity and this region is one of four candidate landing sites for MSL.



Written by: Jennifer Griffes  (5 January 2011)

This is a stereo pair with ESP_028855_2045.
 
Acquisition date
25 November 2010

Local Mars time
15:45

Latitude (centered)
24.244°

Longitude (East)
341.287°

Spacecraft altitude
286.3 km (177.9 miles)

Original image scale range
32.0 cm/pixel (with 1 x 1 binning) so objects ~96 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
27.6°

Phase angle
34.6°

Solar incidence angle
61°, with the Sun about 29° above the horizon

Solar longitude
187.0°, Northern Autumn

For non-map projected images
North azimuth:  95°
Sub-solar azimuth:  343.5°
JPEG
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IRB color
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JP2 EXTRAS
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non-map           (462MB)

IRB color
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non-map           (363MB)

Merged IRB
map projected  (360MB)

Merged RGB
map-projected  (347MB)

RGB color
non map           (362MB)
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/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.