K-Ar age and chemical composition of volcanites from the Sea of Okhotsk

Volcanogenic rocks from the Sea of Okhotsk are divided into seven age complexes: Late Jurassic, Early Cretaceous, Late Cretaceous, Eocene, Late Oligocene, Late Miocene, and Pliocene-Pleistocene. All these complexes are united into two groups - Late Mesozoic and Cenozoic. Each group reflects a certai...

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Bibliographic Details
Main Authors: Emelyanova, T A, Lelikov, Evgeny P, Sedin, V T, Naryzhnyy, V L
Format: Dataset
Language:English
Published: PANGAEA 2003
Subjects:
Archive of Ocean Data
ARCOD
Dredge
DRG
LV27-14
LV27-19
Sea of Okhotsk
SOO03-2120
SOO03-2122
SOO03-2357
SOO03-3105
SOO03-3110
SOO03-3111
SOO03-3115
SOO03-3116
SOO03-3118
SOO03-3120
SOO03-3125
SOO03-3133
SOO03-3157
SOO03-4218
Okhotsk
Chukotka
okhotsk sea
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.779116
https://doi.org/10.1594/PANGAEA.779116
Description
Summary:Volcanogenic rocks from the Sea of Okhotsk are divided into seven age complexes: Late Jurassic, Early Cretaceous, Late Cretaceous, Eocene, Late Oligocene, Late Miocene, and Pliocene-Pleistocene. All these complexes are united into two groups - Late Mesozoic and Cenozoic. Each group reflects a certain stage of development of the Sea of Okhotsk region. Late Mesozoic volcanites build the geological basement of the Sea of Okhotsk, and their petrochemical features are similar to those of the volcanic rocks from the Okhotsk-Chukotka Volcanogen. Pliocene-Pleistocene volcanites reflect stages of tectono-magmatic activity; the latter destroyed the continental margin and produced riftogenic troughs. Geochemical features of volcanites from the Sea of Okhotsk indicate influence of the sialic crust on magma formation and testify formation of the Okhotsk Sea Basin on the destructive margin of the Asian continent.

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