Doklady Earth Sciences

, Volume 472, Issue 2, pp 167–172 | Cite as

The role of tectonic flow of crustal material in the formation of the Sea of Japan and the Sea of Okhotsk



Based on the concept of tectonic delamination of the lithosphere, we revealed that the Sea of Japan and the Sea of Okhotsk were formed as a result of the tectonic flow of crustal material. The intermittent southward movement of southwestern Japan (Late Cretaceous–Cenozoic) along the eastern Japanese leftlateral strike-slip fault zone resulted in the formation of paired structures: back-arc extensional (Central Japan rift) and frontal compressional (South Japan imbricate–thrust belt) structures. The Sea of Okhotsk was formed in a similar tectonic setting: South Okhotsk rift (back-arc extensional structure) and Kamuikotan–Susunai compressional belt (frontal imbricate-thrust structure). Synchronous extension, compression, and strike-slip movements suggest that the tectonic flow of crustal material played a critical role in the formation of the Sea of Japan and the Sea of Okhotsk.


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© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Far East Geological Institute, Far East BranchRussian Academy of SciencesVladivostokRussia

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