Possible Phyllosilicate Near Margaritifer Chaos
NASA/JPL/University of Arizona
Possible Phyllosilicate Near Margaritifer Chaos
ESP_028288_1720  Science Theme: Composition and Photometry
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According to CRISM multispectral data, the exposures of light-toned materials (on small hills and between darker dunes) shows a strong iron-magnesium phyllosilicate signatures in this area. Phyllosilicates, or sheet silicates, are an important group of minerals that includes the micas, chlorite, serpentine, talc, and the clay minerals.

The existence of clay minerals is especially interesting on Mars since we want to know under what conditions these minerals formed. Could it have been the presence of water?

This image is a new one for HiRISE, since we have no previous observations of this area. With our camera's resolution and data from CRISM, we might be able to determine if these particular phyllosilicates are actually present here.

Written by: HiRISE Science Team (audio by Tre Gibbs)   (14 November 2012)

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Acquisition date:08 August 2012 Local Mars time:15:32
Latitude (centered):-7.899° Longitude (East):343.152°
Range to target site:265.6 km (166.0 miles)Original image scale range:from 26.6 cm/pixel (with 1 x 1 binning) to 53.1 cm/pixel (with 2 x 2 binning)
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:1.2° Phase angle:57.4°
Solar incidence angle:56°, with the Sun about 34° above the horizon Solar longitude:152.0°, Northern Summer

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