Disclosing of a deepest section of continental-type crust up- thrust as the final event of collision of arcs in Hokkaido, north Japan.

M. Komatsu, S. Miyashita, J. Maeda, Y. Osanai, T. Toyoshima

研究成果: Chapter in Book/Report/Conference proceedingChapter

59 被引用数 (Scopus)

抄録

The metamorphic sequence in the main zone of the Hidaka metamorphic belt represents almost the whole section through the continent-type crust which was obducted on the accretion complex along the collision zone of two island arcs. The exposed crust section has about 23 km in thickness, consisting of granulite facies gneisses at the base, amphibolite facies gneisses in the middle to upper and greenschist facies rocks and unmetamorphosed sediments at the top. The crust might have been developed in an island arc environment during the Paleogene to Early Miocene and thrust up E to W, having been affected by the westward collision of the third island arc, the Kuril arc, in the Late Miocene to Pliocene time. -Authors

本文言語英語
ホスト出版物のタイトルAccretion tectonics in the circum-Pacific regions. Proc. seminar, 1981, Japan
編集者M. Hashimoto, S. Uyeda
出版社Terra Scientific, Tokyo; Reidel, Dordrecht
ページ149-165
ページ数17
出版ステータス出版済み - 1983
外部発表はい

All Science Journal Classification (ASJC) codes

  • 地球惑星科学(全般)
  • 環境科学(全般)

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