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Late Holocene surface ocean conditions of the Norwegian Sea (Vøring Plateau)

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Show simple item record Andersson, Carin eng Risebrobakken, Bjørg eng Jansen, Eystein eng Dahl, Svein Olaf eng 2004-07-12T09:12:55Z 2004-08-03T12:58:20Z 2004-08-26T11:57:55Z 2004-07-12T09:12:55Z 2004-08-03T12:58:20Z 2004-08-26T11:57:55Z 2003-06-04 eng
dc.identifier.citation Paleoceanography 2003 18(2): 1044 en
dc.identifier.issn 0883-8305 eng
dc.description.abstract Late Holocene sea surface ocean conditions of the eastern Norwegian Sea (Vøring Plateau) are inferred from planktic stable isotopes and planktic foraminiferal assemblage changes in cores JM97-948/2A and MD95-2011 (66.97°N, 7.64°E). Strong covariance between the planktic stable oxygen isotopic record and abundance changes of N. pachyderma (sin) show that major changes in surface ocean conditions are reflected both in the geochemical composition of the foraminiferal tests as well as in the composition of the foraminiferal fauna. Surface ocean conditions warmer than present were common during the past 3000 years. During the so-called Medieval Warm Period, surface conditions were highly variable with marked changes in sea surface temperature. The warmest sea surface temperatures during this period occurred between 800 and 550 years BP (0 BP = AD 2000). Climatic deterioration, recorded as decreases in sea surface temperature, occurred at about 2750, 1550, 400, and 100 years BP. The cooling events at about 2750 and 1550 years BP appear to correlate with increases in ice-rafted debris in the North Atlantic. Based on the results from JM97-948/2A and MD95-2011, the onset of the Little Ice Age cooling trend seems to have occurred around 700–600 years BP. Faunal changes indicate two cooling events during the Little Ice Age (at 400 and 100 years BP) that correspond to decreases in Fennoscandian summer temperatures and increases in ice-rafted debris in the eastern North Atlantic. en
dc.format.extent 60650 bytes eng
dc.format.extent 869547 bytes eng
dc.format.extent 166 bytes eng
dc.format.mimetype text/plain eng
dc.format.mimetype application/pdf eng
dc.format.mimetype text/plain eng
dc.language.iso eng eng
dc.publisher American Geophysical Union eng
dc.subject Paleoceanography eng
dc.subject Stable isotope eng
dc.subject Holocene eng
dc.subject Micropaleontology eng
dc.title Late Holocene surface ocean conditions of the Norwegian Sea (Vøring Plateau) eng
dc.type Journal article eng
dc.type Peer reviewed eng
dc.rights.holder Copyright 2003 the American Geophysical Union
bora.peerreviewed Peer reviewed eng
bibo.doi eng

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