The Iwanai Nappe in the Kamuikotan Tectonic Belt, Sothern Hokkaido, Japan

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Description

The Sarugawa ultramafic mass is interpreted as a nappe here called the "Iwanai Nappe", resting, with its sedimentary cover, on a unit reworking ophiolitic rocks and Cretaceous Yezo deposits. The Iwanai Nappe has been emplaced toward the south-west from an area situated east of the "Yezo Syncline". The age of movement is inferred to be Eocene, contemporaneous with the beginning of the strike-slip movement in Hidaka belt. This structure is a good explanation for the Lower Cretaceous facies distribution in the concerned area.

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Details 詳細情報について

  • CRID
    1050845763927646976
  • NII Article ID
    120001152037
  • HANDLE
    2115/36731
  • ISSN
    00183474
  • Text Lang
    en
  • Article Type
    departmental bulletin paper
  • Data Source
    • IRDB
    • CiNii Articles

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