Small Mounds in Chryse Planitia
NASA/JPL/University of Arizona
Small Mounds in Chryse Planitia
ESP_022381_2000  Science Theme: Volcanic Processes
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The suggested area in this observation is characterized by a group of cones, shield-like features, and round mounds. They are a few hundred meters to kilometers in diameter but their heights are unknown.

Possible explanations for their formation include sedimentary (mud) volcanism and magmatic volcanism. HiRISE data would be essential for distinguishing these hypotheses.

This caption is based on the original science rationale.

Written by: HiRISE Science Team   (13 July 2011)

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Acquisition date
06 May 2011

Local Mars time:
14:23

Latitude (centered)
19.794°

Longitude (East)
322.546°

Range to target site
284.7 km (178.0 miles)

Original image scale range
57.0 cm/pixel (with 2 x 2 binning) so objects ~171 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
0.3°

Phase angle:
56.0°

Solar incidence angle
56°, with the Sun about 34° above the horizon

Solar longitude
287.4°, Northern Winter

North azimuth:
97°

Sub-solar azimuth:
316.5°
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HiView

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IRB: infrared-red-blue
RGB: red-green-blue
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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
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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.