EGU21-10659
https://doi.org/10.5194/egusphere-egu21-10659
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

 Middle and Late Jurassic climatic, oceanographic and environmental trends along the Viking Corridor

Iben W. Hougård1, Madeleine L. Vickers1, Peter Alsen2, Mads E. Jelby1, Clemens V. Ullmann3,4, and Christoph Korte1
Iben W. Hougård et al.
  • 1University of Copenhagen, Faculty of Science, Section for Geology, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
  • 2Geological Survey of Denmark and Greenland, Department of Stratigraphy, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
  • 3University of Oxford, Department of Earth Sciences, South Parks Road, OX1 3AN, UK
  • 4Camborne School of Mines, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9FE, U.K.

Keywords: Late Jurassic; palaeoclimate; Greenland; carbon cycling; Viking Corridor; belemnite stable isotopes

The “polar amplification” effect, whereby the poles experience greater changes in temperature compared to the low latitudes for a given global average temperature change, makes high-latitude isotope records ideally suited to investigate fluctuations in palaeoclimate. The present study investigates palaeoclimatic and oceanographic changes along the Viking Corridor – the narrow seaway that connected the Tethys to the Arctic Boreal Realm during the Middle and Late Jurassic.

Stable-isotope data obtained from belemnites from East Greenland, originating from along the western margin of the Viking Corridor, show a M. Bathonian warming trend, which may indicate the reopening of the corridor after North Sea doming. We also discuss various controls on the carbon-isotope record that may dampen or amplify global signals. Changes in local depositional settings caused partial overprinting of the δ13C record during the Late Jurassic VOICE event.

How to cite: Hougård, I. W., Vickers, M. L., Alsen, P., Jelby, M. E., Ullmann, C. V., and Korte, C.:  Middle and Late Jurassic climatic, oceanographic and environmental trends along the Viking Corridor, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-10659, https://doi.org/10.5194/egusphere-egu21-10659, 2021.

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