Tectonique d'accrétion dans les îles du Japon et évolution de la croûte continentale

Asahiko Taira, Shoichi Kiyokawa, Kan Aoike, Saneatsu Saito

研究成果: Contribution to journalReview article査読

10 被引用数 (Scopus)

抄録

Revised interpretation of the basement geology of the Japanese island arcs which has emerged in the last 20 years or so, indicates that they are mostly composed of two geological belts: volcanics (greenstone)-granitoid belt (VGB) and turbidite-granitoid belt (TGB). The VGB exhibits thrust-bounded thick sequences of basic volcanics and associated granitoid plutons and was formed by arc-arc collision process. The TGB is composed of turbidite and melange units and was formed by progressive growth of trench accretionary prism and later intrusion of granitoid. Both belts represent a style of crustal growth in a convergent margin. In these orogenic belt, involvement of many oceanic island arcs and formation of the VGB were a major mechanism of juvenile crust, in addition to the continental crust. The formation of the TGB played a major role in the reworking and recycling of the continental crust which resulted in a long-term secular compositional change of the upper crust.

寄稿の翻訳タイトルAccretion tectonics of the Japanese islands and evolution of continental crust
本文言語フランス語
ページ(範囲)467-478
ページ数12
ジャーナルComptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
325
7
DOI
出版ステータス出版済み - 10 1997
外部発表はい

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ocean Engineering

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