Middle and Late Jurassic climatic, oceanographic and environmental trends along the Viking Corridor
- 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.
Corresponding displays formerly uploaded have been withdrawn.