Title: Neoproterozoic sulfur isotopes, the evolution of microbial sulfur species, and the burial efficiency of sulfide as sedimentary pyrite
Abstract: Research Article| January 01, 2005 Neoproterozoic sulfur isotopes, the evolution of microbial sulfur species, and the burial efficiency of sulfide as sedimentary pyrite Matthew T. Hurtgen; Matthew T. Hurtgen 1Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, USA Search for other works by this author on: GSW Google Scholar Michael A. Arthur; Michael A. Arthur 2Pennsylvania State Astrobiology Research Center, Pennsylvania State University, University Park, Pennsylvania 16802, USA Search for other works by this author on: GSW Google Scholar Galen P. Halverson Galen P. Halverson 3Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Matthew T. Hurtgen 1Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, USA Michael A. Arthur 2Pennsylvania State Astrobiology Research Center, Pennsylvania State University, University Park, Pennsylvania 16802, USA Galen P. Halverson 3Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, USA Publisher: Geological Society of America Received: 14 Jun 2004 Revision Received: 21 Sep 2004 Accepted: 22 Sep 2004 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2005) 33 (1): 41–44. https://doi.org/10.1130/G20923.1 Article history Received: 14 Jun 2004 Revision Received: 21 Sep 2004 Accepted: 22 Sep 2004 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Matthew T. Hurtgen, Michael A. Arthur, Galen P. Halverson; Neoproterozoic sulfur isotopes, the evolution of microbial sulfur species, and the burial efficiency of sulfide as sedimentary pyrite. Geology 2005;; 33 (1): 41–44. doi: https://doi.org/10.1130/G20923.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Significant variability in δ34Spyrite values in Neoproterozoic sedimentary rocks has been attributed to the evolution of nonphotosynthetic sulfide-oxidizing bacteria and the advent of sulfur disproportionation reactions in response to Earth's evolving redox chemistry. We analyzed trace sulfate in carbonates from South Australia and Namibia and reconstructed the sulfur isotope evolution of seawater sulfate. Comparison of our δ34Ssulfate record with published δ34Spyrite data from the same or equivalent successions indicates that δ34Ssulfate − δ34Spyrite (Δ34S) rose gradually through the second half of the Neoproterozoic and fluctuated coincident with episodes of glaciation, but did not exceed 46‰ before ca. 580 Ma. Large variability in δ34Spyrite in the Neoproterozoic can be explained as a consequence of low sulfate concentrations and rapidly fluctuating δ34Ssulfate in seawater rather than the onset of sulfur disproportionation reactions mediated by nonphotosynthetic sulfide-oxidizing bacteria. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 161
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