Rhythmic Layers East of Medusae Fossae
NASA/JPL/University of Arizona
Rhythmic Layers East of Medusae Fossae
ESP_057092_1770  Science Theme: Sedimentary/Layering Processes
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The surface of this image looks wavy, like that of the sea. These wave shapes are the result of erosion: the removal of material, which has been ongoing for millions, if not billions, of years. This erosion is likely performed by the action of wind and has revealed layered rock that was deposited in this area in the ancient past.

The layers were deposited very regularly one on top of another and the erosion has cut across them—sometimes shallowly, sometimes more deeply—to create these giant undulations. More resistant layers protrude further, making them the visible crests of the waves.

Written by: Susan Conway (audio: Tre Gibbs)  (10 June 2019)

This is a stereo pair with ESP_057303_1770.
 
Acquisition date
01 October 2018

Local Mars time
14:50

Latitude (centered)
-2.895°

Longitude (East)
215.646°

Spacecraft altitude
265.0 km (164.7 miles)

Original image scale range
26.7 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
7.2°

Phase angle
40.1°

Solar incidence angle
47°, with the Sun about 43° above the horizon

Solar longitude
260.4°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  334.1°
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Black & white is 5 km across; enhanced color about 1 km
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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.