Radiolarian datum planes in Core MD01-2415

Radiolarian distribution is studied in Core IMAGES MD01-2415 (46 m long) from the central Sea of Okhotsk. Obtained data made it possible to refine regional biostratigraphy and document the major paleoenvironmental changes in the basin during last million years. In total, 17 radiolarian datum planes...

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Bibliographic Details
Main Authors: Matul, Alexander G, Abelmann, Andrea, Nürnberg, Dirk, Tiedemann, Ralf
Format: Dataset
Language:English
Published: PANGAEA 2009
Subjects:
AGE
Archive of Ocean Data
ARCOD
DEPTH
sediment/rock
Giant piston corer
GPC
IMAGES VII - WEPAMA
Isotopic event
Marion Dufresne (1995)
MD012415
MD01-2415
MD122
Occurrence
Sea of Ochotsk
Species
Okhotsk
Pacific
Subarctic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.727234
https://doi.org/10.1594/PANGAEA.727234
Description
Summary:Radiolarian distribution is studied in Core IMAGES MD01-2415 (46 m long) from the central Sea of Okhotsk. Obtained data made it possible to refine regional biostratigraphy and document the major paleoenvironmental changes in the basin during 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. Analysis of 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.

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