Paleo-oceanography of the Norwegian Sea during the past 130,000 years: Coccolithophorid and foraminferal data

Boreas
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Abstract

Faunal, floral and sedimentological properties of Norwegian Sea core V27-86 were examined in order to reconstruct the paleo-oceanographic history of this region. Downcore variations in the relative abundance of three microfossil groups and several sediment properties exhibit three different climate response patterns (CRP). Each pattern is judged to represent the response of a different part of the climate system. The covariance patterns among coccoliths, henthic foraminifera, and other properties suggest that the Norwegian Sea has been ice-free and productive during the present interhlacial. the penultimate interglacial (isotopic-stage se) and at least partially ice-free during an intermediate climatic regime (stages sa-d). A maximum change in these measures occurs at the boundary between isotopic stage 5a (an intermediate climatic regime)and isotopic stage 4 (a glacial climatic regime). In contrast, planktic foraminiferal assemblages and oxygen isotope measurements on planktic foraminifera show a major change at the end of stage 5e (the penultimate interglacial). The contrasting behavior of these two sets of observations is explained by a model which postulates a low-salinity surface layer 115,000 to 75,000 years ago (stages 5a-d).

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Paleo-oceanography of the Norwegian Sea during the past 130,000 years: Coccolithophorid and foraminferal data
Series title Boreas
DOI 10.1111/j.1502-3885.1982.tb00516.x
Volume 11
Issue 1
Year Published 1982
Language English
Publisher Wiley
Contributing office(s) Woods Hole Coastal and Marine Science Center
Description 8 p.
First page 29
Last page 36
Other Geospatial Norwegian Sea