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

Translated title of the contribution: Accretion tectonics of the Japanese islands and evolution of continental crust

Asahiko Taira, Shoichi Kiyokawa, Kan Aoike, Saneatsu Saito

Research output: Contribution to journalReview article

10 Citations (Scopus)

Abstract

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.

Original languageFrench
Pages (from-to)467-478
Number of pages12
JournalComptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
Volume325
Issue number7
DOIs
Publication statusPublished - Jan 1 1997
Externally publishedYes

Fingerprint

tectonics
Tectonics
granitoid
continental crust
accretion
turbidite
geology
recycling
island arc
arc-arc collision
convergent margin
melange
volcanic belt
greenstone
accretionary prism
orogenic belt
reworking
upper crust
pluton
Geology

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ocean Engineering

Cite this

Tectonique d'accrétion dans les îles du Japon et évolution de la croûte continentale. / Taira, Asahiko; Kiyokawa, Shoichi; Aoike, Kan; Saito, Saneatsu.

In: Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, Vol. 325, No. 7, 01.01.1997, p. 467-478.

Research output: Contribution to journalReview article

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