Amino acid geochronology of selected interglacial sites in the North Sea area. |
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| Authors: | KAREN LUISE KNUDSEN HANS PETTER SEJRUP |
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| Institution: | Department of Micropalaeontology, Institute of Geology, University of Aarhus, DK-8000 Århus C, Denmark;Department of Geology, Section B, University of Bergen, Allégt. 41, N-5000 Bergen, Norway |
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| Abstract: | Isoleucine epimerization (alle/Ile) ratios have been measured on foraminiferal tests from interglaical sites in the southern North Sea region. In order to evaluate the possibilities of this amino acid method on benthic foraminifera, sites were chosen from areas where the stratigraphy was already well known. The study demonstrates that the isoleucine epimerization reaction in benthic foraminifera can be used for correlation and as a means of relative age estimation within a limited geographic area. Previous suggestions of a Holsteinian age for the Rug rd, Tornskov, and Wacken sites are supported for the Kås Hoved site. The age of most presumed Eemian sites is supported by the amino acid results; the Reighton site also seems to belong in this interglacial. |
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