HiRISE | Exploring the Mounds in the Chryse Region (ESP_027339

NASA/JPL-Caltech/UArizona

Exploring the Mounds in the Chryse Region
ESP_027339_2060 Science Theme: Future Exploration/Landing Sites

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The mounds in this observation may have been formed by a process called “diapirism,” where material at depth is more buoyant (i.e., lower density) than the surrounding rocks so it rises to the surface.

Why might this be of interest? At HiRISE resolution, we might be able to study the uplifted material more closely, such as if there are clays or other aqueous materials present. If these mounds were formed by diapirism, it offers a deeper window into the Martian past. This area could also be an interesting site for a future exploration rover.

This caption is based on the original science rationale.

Written by: HIRISE Science Team (29 August 2012)

This is a stereo pair with ESP_026284_2060.

Acquisition date
26 May 2012

Local Mars time
15:21

Latitude (centered)
25.964°

Longitude (East)
326.314°

Spacecraft altitude
287.3 km (178.5 miles)

Original image scale range
30.1 cm/pixel (with 1 x 1 binning) so objects ~90 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
17.9°

Phase angle
28.5°

Solar incidence angle
46°, with the Sun about 44° above the horizon

Solar longitude
116.0°, Northern Summer

For non-map projected images
North azimuth: 96°
Sub-solar azimuth: 11.9°

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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-Caltech/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.