The 132nd Annual Meeting of the Geological Society of Japan
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Presentation Information

11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)

[T1-O-11]K-Ar geochronology of Abukuma metamorphic belt in NE Japan: towards a formation model of the plutonic metamorphic belt over 1,000km

*Tetsumaru ITAYA1 (1. Hiruzen Institute for Geology & Chronology)

Keywords:

Abukuma metamorphic belt,NE Japan,Low P/T type of metamorphism,K-Ar ages of biotite & muscovite,middle Cretaceous plutonic metamorphic belt,subduction roll-back,high Nb basalt,adakite,high Mg andesite

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