Deposits on the Floor of Palos Crater
NASA/JPL/University of Arizona
Deposits on the Floor of Palos Crater
ESP_016943_1775  Science Theme: Sedimentary/Layering Processes
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This image shows a portion of the floor in Palos Crater. The floor appears bumpy with high-standing layered knobs. Most of the terrain on the floor is weathering into meter-size polygonal blocks. The circular structures in the image, many of which are filled with darker aeolian material, are eroded impact craters.

Palos Crater is breached in the south by the 180 kilometers-long Tinto Vallis. Water transported along Tinto Vallis could have could have collected into Palos Crater to form a lake that later drained to the north. Sediments carried by Tinto Vallis would have also been deposited within Palos Crater so the layered unit we see along the floor today could represent these fluvial sediments.

Written by: Cathy Weitz   (31 March 2010)

This is a stereo pair with ESP_017721_1775.

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Acquisition date
08 March 2010

Local Mars time:

Latitude (centered)

Longitude (East)

Range to target site
267.1 km (167.0 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

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Emission angle:

Phase angle:

Solar incidence angle
51°, with the Sun about 39° above the horizon

Solar longitude
61.3°, Northern Spring

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NASA/JPL/University of Arizona

For information about NASA and agency programs on the Web, visit: 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.