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- W2923210600 abstract "Research Article| March 21, 2019 Marine anoxia and sedimentary mercury enrichments during the Late Cambrian SPICE event in northern Scotland Sara B. Pruss; Sara B. Pruss 1Department of Geosciences, Smith College, Northampton, Massachusetts 01063, USA Search for other works by this author on: GSW Google Scholar David S. Jones; David S. Jones 2Department of Geology, Amherst College, Amherst, Massachusetts 01002, USA Search for other works by this author on: GSW Google Scholar David A. Fike; David A. Fike 3Department of Earth & Planetary Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA Search for other works by this author on: GSW Google Scholar Nicholas J. Tosca; Nicholas J. Tosca 4Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, UK Search for other works by this author on: GSW Google Scholar Paul B. Wignall Paul B. Wignall 5The School of Earth Sciences, Leeds University, Leeds, West Yorkshire LS2 9JT, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Sara B. Pruss 1Department of Geosciences, Smith College, Northampton, Massachusetts 01063, USA David S. Jones 2Department of Geology, Amherst College, Amherst, Massachusetts 01002, USA David A. Fike 3Department of Earth & Planetary Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, USA Nicholas J. Tosca 4Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, UK Paul B. Wignall 5The School of Earth Sciences, Leeds University, Leeds, West Yorkshire LS2 9JT, UK Publisher: Geological Society of America Received: 29 Nov 2018 Revision Received: 26 Feb 2019 Accepted: 01 Mar 2019 First Online: 21 Mar 2019 Online Issn: 1943-2682 Print Issn: 0091-7613 © 2019 Geological Society of America Geology (2019) 47 (5): 475–478. https://doi.org/10.1130/G45871.1 Article history Received: 29 Nov 2018 Revision Received: 26 Feb 2019 Accepted: 01 Mar 2019 First Online: 21 Mar 2019 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Sara B. Pruss, David S. Jones, David A. Fike, Nicholas J. Tosca, Paul B. Wignall; Marine anoxia and sedimentary mercury enrichments during the Late Cambrian SPICE event in northern Scotland. Geology 2019;; 47 (5): 475–478. doi: https://doi.org/10.1130/G45871.1 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 Elevated mercury concentrations in ancient sedimentary rocks are used as a fingerprint for large igneous province (LIP) volcanism because there is a tight association between known LIPs and coeval sedimentary Hg anomalies. While nonvolcanic processes of sedimentary Hg enrichment, including redox variations, have been demonstrated in modern settings, interpretations of ancient sedimentary Hg records have focused on LIP volcanism. Here, we document a link between sedimentary Hg enrichment and marine redox changes during the late Cambrian Steptoean positive isotopic carbon excursion (SPICE) event, a time with no known LIP. We report a new occurrence of the SPICE event from the Eilean Dubh Formation of northern Scotland, which preserves a series of coeval Hg enrichments. Abundant glauconite, a redox-sensitive iron-bearing mineral, co-occurs stratigraphically with the SPICE and Hg enrichments but is rare to absent from the rest of the section, and bioturbation is low in strata spanning the SPICE. We suggest that local Hg enrichments were driven by changing marine redox conditions during the SPICE event, rather than emplacement of a LIP. Redox oscillations should be considered as an additional control on Hg enrichments in the geologic record. You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2923210600 title "Marine anoxia and sedimentary mercury enrichments during the Late Cambrian SPICE event in northern Scotland" @default.
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