Double ridge subduction recorded in the Shimanto accretionary complex, Japan, and plate reconstruction

Soichi Osozawa

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Combining a quantitative model relating ridge subduction and radiolarian biostratigraphical data from the Shimanto belt including accreted midocean ridge basalt, the plate configuration for the western North Pacific since 83 Ma can be reconstructed. The Kula-North New Guinea and North New Guinea-Pacific ridges passed along the Japan arc. Assuming a constant plate motion, the half-spreading rates, angles at which ridges entered the trench, convergent rates and angles, and migration rates of triple junctions can be calculated. -Author

Original languageEnglish
Pages (from-to)939-942
Number of pages4
JournalGeology
Volume20
Issue number10
DOIs
Publication statusPublished - 1992 Jan 1

ASJC Scopus subject areas

  • Geology

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