Evaluating the role of sulfide-weathering in the formation of sulfates or carbonates on Mars

Dehouck, E.; Chevrier, V. F.; Gaudin, A.; Mangold, N.; Mathé, P.-E.; Rochette, P.

doi:10.1016/j.gca.2012.04.057

Cited by 65 publications

(73 citation statements)

References 94 publications

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“…Martian gypsum may have precipitated from chemical weathering, evaporation, hydrothermal activities, or possibly biotic factors in certain regions (Tanaka 2006;Chevrier and Mathé 2007;Dehouck et al 2012). For comparison, several hot springs on Earth were chosen to provide mineralogical information relevant to searching for hydrothermal environments on Mars (Bishop et al 2004Allen and Oehler 2008;Rossi et al 2008).…”

Section: Application To the Preservation Of Gypsum In Ancient Sedimenmentioning

confidence: 99%

“…These hypotheses include evaporative deposition, hydrothermal alteration of volcanic rocks, sulfide oxidation in bedrock, or leaching of bedrock by volcanic vapors (Bibring et al 2005;Langevin et al 2005;Tanaka 2006;Fishbaugh et al 2007;Squyres et al 2007;Szynkiewicz et al 2010;Dehouck et al 2012). As an important component in the biogeochemical sulfur cycle, gypsum can be the product of chemolithoautotrophic oxidization of reduced sulfur, or it may be reduced by sulfate-reducing bacteria through anaerobic respiration (Oschmann 2000).…”

Section: Introductionmentioning

confidence: 99%

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Gypsum in modern Kamchatka volcanic hot springs and the Lower Cambrian black shale: Applied to the microbial-mediated precipitation of sulfates on Mars

Tang

Ehreiser

2014

American Mineralogist

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Gypsum is a mineral that commonly precipitates in hydrothermal environments. This study reports the electron microscopic analyses of gypsum morphologies and crystal sizes found in hot springs on the Kamchatka Peninsula, Russia, and compares these analyses with gypsum morphologies of hydrothermal genesis found in Lower Cambrian black shale. In sediments of the Kamchatka hot springs, we observed prismatic, prismatic pseudo-hexagonal, fibrous, tubular, lenticular and twinned gypsum crystals, with crystal sizes ranging from <200 nm to >200 mm. The coexistence of diverse crystal habits of gypsum implies a constant interaction between hot spring geochemistry and the metabolisms of the microbial community. The crystallization of Ca-and Ba-sulfates in the black shale of the Lower Cambrian, which shows similar but less varied morphology, was influenced by post-depositional hydrothermal fluids. The partial replacement of pyrite by sulfates in a situation coexisting with rich biomass deposits and animal fossils indicates limited modification of the sedimentary records by biological materials. If the gypsum precipitated on Mars underwent similar interactions between microbial communities and their geochemical environments, the resulting crystal habits could be preserved even better than those on Earth due to the weak geodynamics prevailing on Mars throughout its evolutionary history.

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Section: Application To the Preservation Of Gypsum In Ancient Sedimenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gypsum in modern Kamchatka volcanic hot springs and the Lower Cambrian black shale: Applied to the microbial-mediated precipitation of sulfates on Mars

Tang

Ehreiser

2014

American Mineralogist

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“…Dehouck et al, 2012;King and McSween, 2005). Layered sulphate deposits are predominately associated with Late Noachian to Hesperian crustal terrains, providing evidence for widespread igneous activity and sulphur exhalation during these eons (Bibring et al, 2006).…”

Section: Crustal Sulphur-rich Reservoirsmentioning

confidence: 98%

Magmatic controls on the genesis of Ni–Cu±(PGE) sulphide mineralisation on Mars

Baumgartner

Fiorentini

Baratoux

et al. 2015

Ore Geology Reviews

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“…They are distributed in an equatorial band from Valles Marineris and Meridiani Planum, including chaotic terrains from Xanthe Terra (Gendrin et al 2005;Chojnacki and Hynek 2008;Mangold et al 2008b;Massé et al 2008;Flahaut et al 2010;SeftonNash et al 2012), some crater fills, including Gale crater (Milliken et al 2010a) and eolian deposits along the northern polar cap Massé et al 2010). The origin of sulfate deposits has been debated, requiring the common presence of liquid water and sulfur from either volcanic outgassing or sulfide alteration, or both (e.g., King and McLennan 2010;Dehouck et al 2012).…”

Section: Hydrous Minerals and Alterationmentioning

confidence: 99%

Mars: a small terrestrial planet

Mangold

Baratoux

Witasse

et al. 2016

Astron Astrophys Rev

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Mars is characterized by geological landforms familiar to terrestrial geologists. It has a tenuous atmosphere that evolved differently from that of Earth and Venus and a differentiated inner structure. Our knowledge of the structure and evolution of Mars has strongly improved thanks to a huge amount of data of various types (visible and infrared imagery, altimetry, radar, chemistry, etc) acquired by a dozen of missions over the last two decades. In situ data have provided ground truth for remote-sensing data and have opened a new era in the study of Mars geology. While large sections of Mars science have made progress and new topics have emerged, a major question in Mars exploration-the possibility of past or present life-is still unsolved. Without entering into the debate around the presence of life traces, our review develops various topics of Mars science to help the search of life on Mars, building on the most recent discoveries, going from the exosphere to the interior structure, from the magmatic evolution to the currently active processes, including the fate of volatiles and especially liquid water.

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Evaluating the role of sulfide-weathering in the formation of sulfates or carbonates on Mars

Cited by 65 publications

References 94 publications

Gypsum in modern Kamchatka volcanic hot springs and the Lower Cambrian black shale: Applied to the microbial-mediated precipitation of sulfates on Mars

Gypsum in modern Kamchatka volcanic hot springs and the Lower Cambrian black shale: Applied to the microbial-mediated precipitation of sulfates on Mars

Magmatic controls on the genesis of Ni–Cu±(PGE) sulphide mineralisation on Mars

Mars: a small terrestrial planet

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