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Fe/Mg phyllosilicates near Marwth Vallis
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Fe/Mg phyllosilicates near Marwth Vallis

Acquired Date: May 27, 2010
Release Date: February 13, 2015
Latitude: 23.34 N
Longitude: -19.95 E
Keywords: Channel, Crater Interior/Rim/Ejecta, Landing Site, Hydrated Mineral, Phyllosilicate minerals, Dichotomy Boundary
Parameters: BD1900R/BD1950 (H2O), BD2290 (Mg/Fe-OH minerals), D2300 (Fe-Mg phyllosilicates)

This image shows iron/magnesium-bearing hydrated minerals called phyllosilicates in a white/red color. Phyllosilicates are clay and clay-like minerals formed by chemical reactions with liquid water. They are very thin (microscopic) stacked layer crystal forms, also called sheet silicates. The CRISM team took this image to characterize surface hazards in preparation for the Mars Science Laboratory (Curiosity) rover mission.



This image shows iron/magnesium-bearing hydrated minerals called phyllosilicates in a white/red color. Phyllosilicates are clay and clay-like minerals formed by chemical reactions with liquid water. They are very thin (microscopic) stacked layer crystal forms, also called sheet silicates. The CRISM team took this image to characterize surface hazards in preparation for the Mars Science Laboratory (Curiosity) rover mission.

Landing a rover on Mars is no easy task. There are many places that are "scientifically interesting", meaning they contain minerals like the ones that are shown in this image, but sometimes those regions contain treacherous terrain. Boulders, topography with high inclines, or even sand dunes that the rover could sink into are all thought to be surface hazards.

Link to further description of the spectral parameters shown in this image can be found here.

Disclaimer: Colors shown here represent indicators of mineralogy and are not what the human eye would see.

Acknowledgements: THEMIS, MOLA, CRISM, Google Earth.

The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is one of six science instruments on NASA's Mars Reconnaissance Orbiter. Led by The Johns Hopkins University Applied Physics Laboratory, the CRISM team includes expertise from universities, government agencies and small businesses in the United States and abroad.

CRISM's mission: Find the spectral fingerprints of aqueous and hydrothermal deposits and map the geology, composition and stratigraphy of surface features. The instrument also tracks seasonal variations in dust and ice aerosols in the Martian atmosphere, and water content in surface materials — leading to new understanding of the climate.

Credit: NASA/JPL/JHUAPL

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