Tag Archives: hydrated minerals

CRISM: Hydrated minerals in Chryse Planitia

The Chryse Planitia is a smooth circular plain that has a diameter of 1600 km, and has a depth of 2.5 km below its average surface altitude, making it one of Mars’s lowest regions. Chryse Planitia was a landing site … Continue reading

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Seeking microbial biosignatures for studying Mars rocks

Scientists around Tetyana Milojevic from the Faculty of Chemistry at the University of Vienna are in search of unique biosignatures, which are left on synthetic extraterrestrial minerals by microbial activity. The biochemist and astrobiologist investigates these signatures at her own … Continue reading

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HiRISE: Light-toned layers in Noctis Labyrinthus

Understanding both the spatial and temporal distribution of hydrated (water-bearing) minerals on Mars is essential for deciphering the aqueous history of the planet. Over 300 meters of layered beds are exposed in this trough of Noctis Labyrinthus, at the western … Continue reading

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HiRISE: The plains are not plain

This image covers some of the plains south of Capri Chasma in eastern Valles Marineris. Where the aeolian (wind-blown) sedimentary cover has been stripped away, we see diverse colors indicative of of a variety of altered minerals formed in Mars’ … Continue reading

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HiRISE: Southern floor of Gale Crater

This image along the southern interior floor of Gale Crater hosts many different landforms. Light-toned, scabby, and presumably hydrated materials on the crater floor are covered by large, darker-toned dunes. The small crater, about 2 kilometers in diameter, in the … Continue reading

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HiRISE: Northwest floor of Gale Crater

West of the Curiosity landing site, this image along the northwestern floor of Gale Crater is between Aeolis Mons (informally called “Mt. Sharp”) and the crater rim. A small, 5 kilometer-diameter impact crater to the west created lobes of ejecta. … Continue reading

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HiRISE: Light-toned hydrated deposits

Light-toned hydrated deposits in eastern Noctis Labyrinthus  — Because no likes a deposit with split ends. Beautiful Mars series.

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Clays greased long landslides in Valles Marineris

Beds of clays and hydrated silicate minerals on the floor of Valles Marineris made it easy for landslides there to flow long distances, according to a new paper published online in Geology. The work, done by a team of scientists … Continue reading

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CRISM: Hydrated minerals near Nili Fossae

This image shows a site near Nili Fossae, a group of long, narrow tectonic depressions called graben. Mars’ crust is mostly made up of igneous rock and mafic materials, shown here with red denoting olivine. There are also aqueously-altered minerals … Continue reading

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Nakhla meteorite: newly found mineral features

A new ovoid structure discovered in the Nakhla Martian meteorite is made of nanocrystalline iron-rich clay, contains a variety of minerals, and shows evidence of undergoing a past shock event from impact, with resulting melting of the permafrost and mixing … Continue reading

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