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A dynamic Archean sulfur cycle

Fischer, W. W. and Fike, D. A. and Guan, Y. and Eiler, J. M. and Kirschvink, J. L. and Raub, T. D. (2011) A dynamic Archean sulfur cycle. Mineralogical Magazine, 75 (3). p. 850. ISSN 0026-461X.

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Many aspects of the Earth’s early sulfur cycle, from the origin of mass anomalous fractionations to the scale and degree of biological involvement, remain poorly understood. We have been studying the nature of multiple sulfur isotope (^(32)S, ^(33)S, and ^(34)S) signals using a novel combination of scanning high-resolution low-temperature superconductivity SQUID microscopy and secondary ion mass spectrometry (SIMS) techniques in a suite of samples from distal slope and basinal environments adjacent to a major Late Archean-age (~2.6-2.52 Ga) carbonate platform. Coupled with petrography, these techniques allow us to interrogate, at the same microscopic scale, the complex history of mineralization in samples containing diverse sulfide-bearing mineral components. Because of a general lack of Archean sulfate minerals, we focused our analyses on early diagenetic pyrite nodules, precipitated in surface sediments. This allows us to assay fractionations by controlling for isotope mass balance.

Item Type:Article
Related URLs:
URLURL TypeDescription Table of Contents Website Abstracts
Fischer, W. W.0000-0002-8836-3054
Fike, D. A.0000-0003-2848-0328
Guan, Y.0000-0002-7636-3735
Kirschvink, J. L.0000-0001-9486-6689
Raub, T. D.0000-0002-7471-0246
Additional Information:© 2011 by the Mineralogical Society of Great Britain and Ireland. Open Access Article. Published online 1 August 2011.
Issue or Number:3
Record Number:CaltechAUTHORS:20130806-144651697
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39791
Deposited By: Tony Diaz
Deposited On:09 Aug 2013 18:32
Last Modified:09 Mar 2020 13:19

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