Abiotic Pyrite Formation Produces a Large Fe Isotope Fractionation

The iron isotope composition of sedimentary pyrite has been proposed as a potential proxy to trace microbial metabolism and the redox evolution of the oceans. We demonstrate that Fe isotope fractionation accompanies abiotic pyrite formation in the absence of Fe(II) redox change. Combined fractionati...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2011-06, Vol.332 (6037), p.1548-1551
Main Authors: Guilbaud, Romain, Butler, Ian B., Ellam, Rob M.
Format: Article
Language:English
Subjects:
Abiotic stress
Bacteria - metabolism
Chemical elements
Earth
Earth sciences
Earth, ocean, space
Encapsulation
Exact sciences and technology
Ferric Compounds - chemistry
Ferrous Compounds - chemistry
Fractionation
Geologic Sediments - chemistry
Iron
Iron - chemistry
Iron Isotopes - chemistry
Isotope fractionation
Isotope geochemistry
Isotope geochemistry. Geochronology
Isotopes
Kinetics
metabolism
Microorganisms
Mineralogy
Non silicates
Oceans
Oxidation-Reduction
Pyrite
Pyrites
redox potential
Research grants
Rocks
Sediments
Signatures
Sulfides - chemistry
Utilization
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