EGU21-1279
https://doi.org/10.5194/egusphere-egu21-1279
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Volcanism and carbon cycling in the High Arctic during the Late Jurassic – Early Cretaceous

Madeleine L. Vickers1, Mads E. Jelby1, Jennifer M. Galloway2, Lawrence Percival3, Feiyue Wang4, Hamed Sanei5, Kasia K. Śliwińska6, Gregory D. Price7, Clemens V. Ullmann8,9, Iben W. Hougård1, Ivar Midtkandal10, Tamsin Mather9, and Christoph Korte1
Madeleine L. Vickers et al.
  • 1University of Copenhagen, Department of Geosciences and Natural Resource Management, Geology Section, Copenhagen K, Denmark (mlv@ign.ku.dk)
  • 2Geological Survey of Canada / Commission géologique du Canada, Natural Resources Canada /Ressources naturelles Canada, 3303 33rd St N.W., Calgary, Alberta T2L 2A7, Canada
  • 3Analytical, Environmental, and Geochemistry Group, Vrije Universiteit Brussel, 1050 Brussels, Belgium
  • 4Centre for Earth Observation Science (CEOS) & Department of Environment and Geography 588 Wallace Building Clayton H. Riddell Faculty of Environment, Earth, and Resources, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
  • 5Department of Geoscience, Aarhus University, Høegh-Guldbergs Gade 2, Building 1671, 223, 8000 Aarhus C, Denmark
  • 6Geological Survey of Denmark and Greenland, Department of Stratigraphy, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
  • 7School of Geography, Earth and Environmental Sciences, Plymouth University, Drake Circus, Plymouth, PL4 8AA, U.K.
  • 8Camborne School of Mines, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9FE, U.K.
  • 9Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, UK
  • 10Department of Geosciences, University of Oslo, 0316 Oslo, Norway

Arctic carbon cycling and its regional climate have been observed to deviate from global trends in the Late Jurassic and across the Jurassic–Cretaceous boundary interval, but appear to recouple with global trends in the Early Cretaceous (Galloway et al., 2019; Jelby et al., 2020). We investigate the possible link between these observed trends and volcanism by examining the mercury (Hg) and other element records from Arctic sites in Svalbard (Norway) and the Queen Elizabeth Islands, Canada. We assess whether pulsed phases of the High Arctic Large Igneous Province, or the globally significant emplacement of Paraná-Etendeka or Greater Ontong-Java Plateau, are expressed by stratigraphic Hg trends recorded in the studied sites of Arctic Canada and Svalbard, and how any signals correlate with the regional stable carbon-isotope (δ13C) record. We compare these new data to Hg and δ13C records from other globally distributed sites, focusing on the carbon isotope excursion (CIE) intervals: the Arctic-wide Volgian CIE (“VOICE”), the global Valanginian positive CIE (“Weissert Event”), and the global early Aptian CIE associated with Ocean Anoxic Event 1a (OAE1a).

How to cite: Vickers, M. L., Jelby, M. E., Galloway, J. M., Percival, L., Wang, F., Sanei, H., Śliwińska, K. K., Price, G. D., Ullmann, C. V., Hougård, I. W., Midtkandal, I., Mather, T., and Korte, C.: Volcanism and carbon cycling in the High Arctic during the Late Jurassic – Early Cretaceous, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-1279, https://doi.org/10.5194/egusphere-egu21-1279, 2021.

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