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Mercury anomalies associated with three extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) in NW Pangea

  • STEPHEN E. GRASBY (a1) (a2), BENOIT BEAUCHAMP (a2), DAVID P.G. BOND (a3), PAUL B. WIGNALL (a4) and HAMED SANEI (a1) (a2)...

Strata of Permian – Early Triassic age that include a record of three major extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) were examined at the Festningen section, Spitsbergen. Over the c. 12 Ma record examined, mercury in the sediments shows relatively constant background values of 0.005–0.010 μg g–1. However, there are notable spikes in Hg concentration over an order of magnitude above background associated with the three extinctions. The Hg/total organic carbon (TOC) ratio shows similar large spikes, indicating that they represent a true increase in Hg loading to the environment. We argue that these represent Hg loading events associated with enhanced Hg emissions from large igneous province (LIP) events that are synchronous with the extinctions. The Hg anomalies are consistent across the NW margin of Pangea, indicating that widespread mercury loading occurred. While this provides utility as a chemostratigraphic marker the Hg spikes may also indicate loading of toxic metals to the environment, a contributing cause to the mass extinction events.

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A. W. Andren & R. C. Harriss 1975. Observations on the association between mercury and organic matter dissolved in natural waters. Geochimica et Cosmochimica Acta 39 (9), 1253–58.

B. Beauchamp , C. M. B. Henderson , S. E. Grasby , L. Gates , T. Beatty , J. Utting & N. P. James 2009. Late Permian sedimentation in the Sverdrup Basin, Canadian Arctic: the Lindström and Black Stripe formations. Canadian Society of Petroleum Geology Bulletin 57, 167–91.

D. P. G. Bond , P. B. Wignall , M. Joachimski , Y. Sun , I. Savov , S. E. Grasby , B. Beauchamp & D. P. G. Blomeier 2015. An abrupt extinction in the Middle Permian (Capitanian) of the Boreal Realm (Spitsbergen). Geological Society of America Bulletin, published online 14 April 2015, doi: 10.1130/B31216.1.

A. Brayard , H. Bucher , G. Escarguel , F. Fluteau , S. Bourquin & T. Galfetti 2006. The Early Triassic ammonoid recovery: Paleoclimatic significance of diversity gradients. Palaeogeography, Palaeoclimatology, Palaeoecology 239 (3–4), 374–95.

A. Embry 1989. Correlation of Upper Palaeozoic and Mesozoic sequences between Svalbard, Canadian Arctic Archipelago, and northern Alaska. In Correlation in Hydrocarbon Exploration (ed. J. D. Collinson ), pp. 8998. Netherlands: Springer.

C. Gagnon , É. Pelletier & A. Mucci 1997. Behaviour of anthropogenic mercury in coastal marine sediments. Marine Chemistry 59 (1–2), 159–76.

J. Golonka & D. Ford 2000. Pangean (Late Carboniferous–Middle Jurassic) paleoenvironment and lithofacies. Palaeogeography, Palaeoclimatology, Palaeoecology 161, 134.

S. E. Grasby , B. Beauchamp , D. P. G. Bond , P. B. Wignall , C. Talavera , J. M. Galloway , K. Piepjohn , L. Reinhardt & D. Blomeier 2015. Progressive environmental deterioration in NW Pangea leading to the Latest Permian Extinction. Geological Society of America Bulletin, published online 14 April 2015, doi: 10.1130/B31197.1.

S. E. Grasby , B. Beauchamp , A. F. Embry & H. Sanei 2013 a. Recurrent Early Triassic ocean anoxia. Geology 41, 175–78.

S. E. Grasby , H. Sanei , B. Beauchamp & Z. Chen 2013 b. Mercury deposition through the Permo–Triassic Biotic Crisis. Chemical Geology 351, 209–16.

G. Hall & P. Pelchat 1997. Evaluation of a direct solid sampling atomic absorption spectrometer for the trace determination of mercury in geological samples. Analyst 122 (9), 921–24.

S. Han , G. A. Gill , R. D. Lehman & K.-Y. Choe 2006. Complexation of mercury by dissolved organic matter in surface waters of Galveston Bay, Texas. Marine Chemistry 98 (2–4), 156–66.

M. Horacek , R. Brandner & R. Abart 2007. Carbon isotope record of the P/T boundary and the Lower Triassic in the Southern Alps: Evidence for rapid changes in storage of organic carbon. Palaeogeography, Palaeoclimatology, Palaeoecology 252 (1–2), 347–54.

M. Horacek , T. Koike & S. Richoz 2009. Lower Triassic δ13C isotope curve from shallow-marine carbonates in Japan, Panthalassa realm: Confirmation of the Tethys δ13C curve. Journal of Asian Earth Sciences 36 (6), 481–90.

E. Lafargue , J. Espitalité , F. Marquis & D. Pillot 1998. Rock-Eval 6 applications in hydrocarbon exploration, production and soil contamination studies. Revue de L'institut Francais du Petrole 53 (4), 421–37.

M. J. Orchard 2007. Conodont diversity and evolution through the latest Permian and Early Triassic upheavals. Palaeogeography, Palaeoclimatology, Palaeoecology 252 (1–2), 93117.

P. M. Outridge , H. Sanei , G. A. Stern , P. B. Hamilton & F. Goodarzi 2007. Evidence for control of mercury accumulation in sediments by variations of aquatic primary productivity in Canadian High Arctic lakes. Environmental Science & Technology 41, 5259–65.

M. T. Paton , A. V. Ivanov , M. L. Fiorentini , N. J. McNaughton , I. Mudrovska , L. Z. Reznitskii & E. I. Demonterova 2010. Late Permian and Early Triassic magmatic pulses in the Angara-Taseeva syncline, Southern Siberian Traps and their possible influence on the environment. Russian Geology and Geophysics 51 (9), 1012–20.

H. Sanei , S. E. Grasby & B. Beauchamp 2015. Contaminants in marine sedimentary deposits from coal fly ash during the Latest Permian Extinction (Chapter 5). In: Environmental Contaminants: Using Natural Archives to Track Sources and Long-Term Trends of Pollution ( J. M. Blais , M. R. Rosen & J. P. Smol , eds), pp. 89100. Springer, Developments in Paleoenvironmental Research vol. 18.

H. Sanei , P. M. Outridge , G. A. Stern & R. W. Macdonald 2014.Classification of mercury-labile organic matter relationships in lake sediments. Chemical Geology 373, 8792.

P. F. Schuster , D. P. Krabbenhoft , D. L. Naftz , L. D. Cecil , M. L. Olson , J. F. Dewild , D. D. Susong , J. R. Green & M. L. Abbott 2002. Atmospheric mercury deposition during the last 270 years: a glacial ice core record of natural and anthropogenic sources. Environmental Science & Technology 36 (11), 2303–10.

C. R. Scotese 2004. A continental drift flipbook. Journal of Geology 112, 729–41.

A. N. Sial , L. D. Lacerda , V. P. Ferreira , R. Frei , R. A. Marquillas , J. A. Barbosa , C. Gaucher , C. C. Windmöller & N. S. Pereira 2013. Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition. Palaeogeography, Palaeoclimatology, Palaeoecology 387, 153–64.

F. Slemr & H. E. Scheel 1998. Trends in atmospheric mercury concentrations at the summit of the Wank mountain, Southern Germany. Atmospheric Environment 32 (5), 845–53.

G. A. Stern , H. Sanei , P. Roach , J. Delaronde & P. M. Outridge 2009. Historical interrelated variations of mercury and aquatic organic matter in lake sediment cores from a subarctic lake in Yukon, Canada: further evidence toward the algal-mercury scavenging hypothesis. Environmental Science & Technology 43, 7684–90.

Y. Sun , M. M. Joachimski , P. B. Wignall , C. Yan , Y. Chen , H. Jiang , L. Wang & X. Lai 2012. Lethally hot temperatures during the Early Triassic greenhouse. Science 338 (6105), 366–70.

P. B. Wignall , R. Morante & R. Newton 1998. The Permo–Triassic transition in Spitsbergen: δ13Corg chemostratigraphy, Fe and S geochemistry, facies, fauna and trace fossils. Geological Magazine 135, 4762.

S. Xie , R. D. Pancost , Y. Wang , H. Yang , P. B. Wignall , G. Luo , C. Jia & L. Chen 2010. Cyanobacterial blooms tied to volcanism during the 5 m.y. Permo–Triassic biotic crisis. Geology 38 (5), 447–50.

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Geological Magazine
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