Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea ...

• Main Authors: Karpuz, Nalân, Jansen, Eystein
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1992
• Subjects: Piston corer; Gravity corer; Core; HM79; Håkon Mosby; Quaternary Environment of the Eurasian North QUEEN; Dye 3; Dye-3; Greenland; Greenland ice core; ice core; Norwegian Sea; Subarctic
• Online Access: https://dx.doi.org/10.1594/pangaea.728132; https://doi.pangaea.de/10.1594/PANGAEA.728132

Although the pulsating nature and the abruptness of the last deglaciation are well documented in marine and land records, very few marine records have so far been able to capture the high-frequency climatic changes recorded in the Greenland ice core Dye 3. We studied high-resolution sediment cores from SE Norwegian Sea, which display a detailed climatic record during the last deglaciation comparable to that of Dye 3. Accelerator mass spectrometry age control of the cores enables us to correlate this record in detail with continental records. The results indicate that the surface waters of the SE Norwegian Sea were seasonally ice free after 13,400 B.P. The Bølling/Allerød interstadial complex (13,200-11,200 B.P.) was a climatically unstable period with changing Arctic-Subarctic conditions. This period was punctuated by four progressively more severe sea surface temperature (SST) minima: between 12,900-12,800 B.P. (BCP I); 12,500-12,400 B.P. (BCP II); 12,300-12,000 B.P. (OD I); and 11,800-11,500 B.P. (OD II). ... : Supplement to: Karpuz, Nalân; Jansen, Eystein (1992): A high-resolution diatom record of the last deglaciation from the SE Norwegian Sea: documentation of rapid climatic changes. Paleoceanography, 7(4), 499-520 ...