CRISM (Compact Reconnaissance Imaging Spectrometer for Mars)
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Mafic minerals and phyllosilicates in Elorza crater’s central pit

Elorza crater is a central pit crater (CPC) located to the north of Coprates Chasma and west of Ganges Chasma in Valles Marineris. CPCs are a type of complex crater that display central depressions on their floors instead of (or on top of) central peaks. The presence of a pit on the central peak of Elorza suggests that there was a volatile-rich material present before the crater formed, as CPCs are thought to form due to a release of volatiles during impact or a drainage of subsurface volatiles after the impact event.

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Mafic minerals and phyllosilicates in Elorza crater’s central pit
07-20-2020
Mafic minerals and phyllosilicates in Elorza crater’s central pit
Polyhydrates Sulfates, Gypsum, and Fe Silicates surrounding the top of a dome in the Sisyphi Montes
07-01-2019
Polyhydrates Sulfates, Gypsum, and Fe Silicates surrounding the top of a dome in the Sisyphi Montes
Olivine and pyroxene in ejecta from northern plains crater
06-13-2019
Olivine and pyroxene in ejecta from northern plains crater
Fe/Mg Phyllosilicates near the rim of Gale Crater
01-25-2019
Fe/Mg Phyllosilicates near the rim of Gale Crater
Hydrated Minerals of Cydonia Colles
12-03-2018
Hydrated Minerals of Cydonia Colles