Formation of Thetis Deep metal-rich sediments in the absence of brines, Red Sea

Pierret, Marie‐Claire; Clauer, Norbert; Bosch, Delphine; Blanc, Guillaume

doi:10.1016/j.gexplo.2009.10.001

Cited by 26 publications

(18 citation statements)

References 76 publications

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“…Thetis Deep) or has ambient temperature (e.g. Shagara, Suakin Deep), may have experienced venting in the past (Gurvich, 2006 and references therein;Pierret et al, 2010). Due to the limited accessibility of the brine pools for modern camera systems, no active vent fields have yet been visually confirmed in the Red Sea.…”

Section: Geological Setting Of the Red Sea Riftmentioning

confidence: 99%

Hydrothermal activity at the ultraslow- to slow-spreading Red Sea Rift traced by chlorine in basalt

et al. 2015

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Section: Geological Setting Of the Red Sea Riftmentioning

confidence: 99%

Hydrothermal activity at the ultraslow- to slow-spreading Red Sea Rift traced by chlorine in basalt

et al. 2015

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“…Metalliferous sediments are found in close association with mid-ocean ridges and seamounts and their distribution is widespread with known occurrences in the Red Sea (Pierret et al, 2010), along the East Pacific Rise (Barrett et al, 1987;Bodei et al, 2008;German et al, 1999;Sayles and Bischoff, 1973), along the Mid-Atlantic Ridge (Dias and Barriga, 2006;Dias et al, 2008;German et al, 1993), in the Indian Ocean (Bostrom, 1973), in the Gulf of California (Lonsdale et al, 1980) and on many seamounts (Mascarenhas-Pereira and Nath, 2010). Modern metalliferous sediments however, occur in locations with low…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Neoproterozoic iron formation: An evaluation of its temporal, environmental and tectonic significance

et al. 2013

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Neoproterozoic iron formation (NIF) provides evidence for the widespread return of anoxic and ferruginous basins during a time period associated with major changes in climate, tectonics and biogeochemistry of the oceans. Here we summarize the stratigraphic context of Neoproterozoic iron formation and its geographic and temporal distribution. It is evident that most NIF is associated with the earlier Cryogenian (Sturtian) glacial epoch. Although it is possible that some NIF may be Ediacaran, there is no incontrovertible evidence to support this age assignment. The paleogeographic distribution of NIF is consistent with anoxic and ferruginous conditions occurring in basins within Rodinia or in rift-basins developed on its margins. Consequently NIF does not require whole ocean anoxia. Simple calculations using modern day iron fluxes suggest that only models that invoke hydrothermal and/or detrital sources of iron are capable of supplying sufficient iron to account for the mass of the larger NIF occurrences. This conclusion is reinforced by the available geochemical data that imply NIF record is a mixture of hydrothermal and detrital components. A common thread that appears to link most if not all NIF is an association with mafic volcanics.Word Count: 11,011

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“…The Red Sea is an ocean in statu nascendi , whose formation results from the diverging movement of the African and Arabian tectonic plate systems in a process that started 28–32 million years ago in the late Oligocene (Scholten et al ., 2000; Pierret et al ., 2010). Detailed studies suggest that emplacement of new oceanic crust occurs in regularly spaced ‘hot spots’ and has a south‐to‐north progression (Bonatti, 1985; 1987).…”

Section: The Red Sea and Its Deep‐sea Brinesmentioning

confidence: 99%

Microbiology of the Red Sea (and other) deep‐sea anoxic brine lakes

Antunes

Ngugi

Stingl

2011

Environ Microbiol Rep

158

137

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Summary The Red Sea harbours approximately 25 deep‐sea anoxic brine pools. They constitute extremely unique and complex habitats with the conjugation of several extreme physicochemical parameters rendering them some of the most inhospitable environments on Earth. After 50 years of research mostly driven by chemists, geophysicists and geologists, the microbiology of the brines has been receiving increased interest in the last decade. Recent molecular and cultivation‐based studies have provided us with a first glimpse on the enormous biodiversity of the local microbial communities, the identification of several new taxonomic groups, and the isolation of novel extremophiles that thrive in these environments. This review presents a general overview of these unusual biotopes and compares them with other similar environments in the Mediterranean Sea and the Gulf of Mexico, with a focus on their microbial ecology.

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Formation of Thetis Deep metal-rich sediments in the absence of brines, Red Sea

Cited by 26 publications

References 76 publications

Hydrothermal activity at the ultraslow- to slow-spreading Red Sea Rift traced by chlorine in basalt

Hydrothermal activity at the ultraslow- to slow-spreading Red Sea Rift traced by chlorine in basalt

Neoproterozoic iron formation: An evaluation of its temporal, environmental and tectonic significance

Microbiology of the Red Sea (and other) deep‐sea anoxic brine lakes

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