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- W2316952183 abstract "Research Article| January 01, 2012 Latest Permian mercury anomalies Hamed Sanei; Hamed Sanei * 1Geological Survey of Canada, 3303-33rd Street NW, Calgary, Alberta T2L2A7, Canada2Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada *E-mail: hsanei@nrcan.gc.ca. Search for other works by this author on: GSW Google Scholar Stephen E. Grasby; Stephen E. Grasby 1Geological Survey of Canada, 3303-33rd Street NW, Calgary, Alberta T2L2A7, Canada2Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar Benoit Beauchamp Benoit Beauchamp 2Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar Geology (2012) 40 (1): 63–66. https://doi.org/10.1130/G32596.1 Article history received: 27 Jun 2011 rev-recd: 22 Aug 2011 accepted: 24 Aug 2011 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 Hamed Sanei, Stephen E. Grasby, Benoit Beauchamp; Latest Permian mercury anomalies. Geology 2012;; 40 (1): 63–66. doi: https://doi.org/10.1130/G32596.1 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 A sedimentary record from the Buchanan Lake section, Canadian High Arctic, shows anomalous high levels of mercury (Hg) during the latest Permian extinction (LPE) on northwest Pangea. Significant influx of Hg progressively overwhelmed the marine system. Major disruption of the organic matter–mediated Hg drawdown process resulted in accumulation of dissolved Hg to maximum levels at the LPE boundary, affecting an already stressed global ecosystem. A switch to euxinic marine conditions at the LPE boundary led to chemical drawdown of Hg sulfides, as marked by progressive Hg mitigation. This allowed self-recovery from toxic Hg conditions, and ultimately led to reestablishment of the internal Hg–organic matter drawdown process. We hypothesize that anomalous Hg levels may be attributed to the significant natural atmospheric emissions caused by catastrophic Siberian Traps volcanic eruptions. 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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- W2316952183 title "Latest Permian mercury anomalies" @default.
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