Stratigraphy and major paleoenvironmental changes in the Sea of Okhotsk during the last million years inferred from radiolarian data

Matul, A. G., Abelmann, A., Nürnberg, Dirk and Tiedemann, R. (2009) Stratigraphy and major paleoenvironmental changes in the Sea of Okhotsk during the last million years inferred from radiolarian data Oceanology, 49 (1). pp. 93-100. DOI 10.1134/S0001437009010111.

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Abstract

The radiolarian distribution is studied in Core IMAGES MD01-2415(46-m-long) from the central Sea of Okhotsk. The obtained data made it possible to refine the regional biostratigraphy and document the major paleoenvironmental changes in the basin in the last million years. In total, 17 radiolarian datum planes are defined with 12 of them being new. Their number exceeds that previously established for different fossil groups in the Subarctic Pacific for this period. Radiolarian datum planes are usually confined to the main boundaries and Quaternary climatic events. The analysis of the radiolaria distribution reveals several major paleoenvironmental shifts in the sea that occurred 950, 700, and 420-280 ka ago and are correlative with regional and global phases of the Middle Pleistocene climatic revolution.

Document Type: Article
Keywords: NORTH PACIFIC; SURFACE SEDIMENTS; PLEISTOCENE; OCEAN; PALEOCEANOGRAPHY; ATLANTIC; PART; ASSEMBLAGE; GREENLAND; EVOLUTION
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Refereed: Yes
DOI etc.: 10.1134/S0001437009010111
ISSN: 0001-4370
Projects: Future Ocean
Date Deposited: 10 Jan 2012 09:38
Last Modified: 19 Jan 2018 10:35
URI: http://eprints.uni-kiel.de/id/eprint/13342

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