| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
A high-resolution radiolarian-derived paleotemperature record for the Late Pleistocene-Holocene in the Norwegian Sea
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| Autores: |
Dolven, Jk
Cortese, G
Bjorklund, Kr
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| Data: |
2002-12
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| Ano: |
2002
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| Palavras-chave: |
Radiolarians
Paleoclimate
Late Pleistocene-Holocene
Norwegian Sea
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| Resumo: |
Polycystine radiolarians are used to reconstruct summer sea surface temperatures (SSSTs) for the Late Pleistocene-Holocene (600-13,400 C-14 years BP) in the Norwegian Sea. At 13,200 C-14 years BP, the SSST was close to the average Holocene SSST (similar to12degreesC). It then gradually dropped to 7.1degreesC in the Younger Dryas. Near the Younger Dryas-Holocene transition (similar to10,000 C-14 years BP), the SSST increased 5degreesC in about 530 years. Four abrupt cooling events, with temperature drops of up to 2.1degreesC, are recognized during the Holocene: at 9340, 7100 ("8200 calendar years event''), 6400 and 1650 C-14 years BP. Radiolarian SSSTs and the isotopic signal from the GISP2 ice core are strongly coupled, stressing the importance of the Norwegian Sea as a mediator of heat/precipitation exchange between the North Atlantic, the atmosphere, and the Greenland ice sheet. Radiolarian and diatom-derived SSSTs display similarities, with the former not showing the recently reported Holocene cooling trend.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00223/33384/31894.pdf
DOI:10.1029/2002PA000780
https://archimer.ifremer.fr/doc/00223/33384/
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| Editor: |
Amer Geophysical Union
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| Formato: |
application/pdf
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| Fonte: |
Paleoceanography (0883-8305) (Amer Geophysical Union), 2002-12 , Vol. 17 , N. 4 , P. 24.1-24.13
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| Direitos: |
Copyright 2002 by the American Geophysical Union.
info:eu-repo/semantics/openAccess
restricted use
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