Dinoflagellate cysts in Upper Quaternary sediments from southwestern Norway and potential correlations with the oceanic record |
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| Authors: | KNUT BAKKEN BARRIE DALE |
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| Institution: | Statoil a.s., Postboks 300 Forus, N-4001 Stavanger, Norway;Barrie Dale, Institutt for geologi, Postboks 1047, Blindern, N-0316 Oslo 3, Norway |
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| Abstract: | Twenty-two samples from two locations at the Foss-Eigeland clay and gravel pit, Jæren, southwestern Norway were analysed for dinoflagellate cysts. Cyst recovery was generally poor and cyst assemblages indicate a cold temperate to arctic glacimarine environment. The percentage composition of a total of 19 cyst species identified allowed the recognition of five assemblage zones. These are thought to reflect fluctuating minor climatic changes during an interstadial period preceding the last glacial advance in the region. Cyst assemblages from these supposedly Middle Weichselian sediments at Foss-Eigeland are similar to those found in the northern North Sea and the Norwegian Sea in probably similarly aged sediments. This suggests a potential for using dinoflagellate cysts to correlate land-based Quaternary sequences with the deep sea record. |
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