Delta Structure in Eberswalde Crater
NASA/JPL/University of Arizona
Delta Structure in Eberswalde Crater
PSP_001336_1560  Science Theme: Sedimentary/Layering Processes
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Eberswalde Crater contains layered rocks about 100-meters thick exposed in a a well-preserved delta.

This sedimentary deposit contains dozens of shallowly tilted, alternating bright and dark layers of varying thickness (1 to 10 meters). HiRISE terrain models reveal structures in these layers which are interpreted as lake-floor deposits.

This delta is distinguished from other fan-shaped deposits on Mars by the presence of a preserved distributary network including lobes, inverted channels, and meander cutoffs. Another example of a fan with a distributary network can be found in Jezero Crater, which may represent a more degraded version of the same kind of system.

Written by: Ross A. Beyer (audio by Tre Gibbs)  (27 February 2013)

This is a stereo pair with PSP_001534_1560.
 
Acquisition date
08 November 2006

Local Mars time:
15:35

Latitude (centered)
-23.835°

Longitude (East)
326.381°

Range to target site
256.3 km (160.2 miles)

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

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25 cm/pixel and North is up

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Equirectangular

Emission angle:
0.3°

Phase angle:
67.2°

Solar incidence angle
67°, with the Sun about 23° above the horizon

Solar longitude
132.4°, Northern Summer

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North azimuth:  97°
Sub-solar azimuth:  39.8°
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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.