This paper investigates the potential contamination of 8200-year BP cooling event records from Norwegian and North Sea sediments by the Storegga tsunami. The authors simulate tsunami flow velocities and re-investigate sediment core MD95-2011, finding that the cold-water foraminifera in the 8.2 ka layer are redeposited and much older than previously assumed. The study concludes that the Storegga tsunami significantly reworked seafloor sediments, potentially affecting climate interpretations based on these records.
Publisher
Nature Communications
Published On
Apr 04, 2024
Authors
Stein Bondevik, Bjørg Risebrobakken, Steven J. Gibbons, Tine L. Rasmussen, Finn Løvholt
Tags
Storegga tsunami
8200-year BP cooling event
Norwegian sediments
climate interpretation
sediment core MD95-2011
foraminifera
tsunami flow velocities
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