Metamorphism

Reappraisal of the oldest high-pressure type schist in Japan: New zircon Usingle bondPb age of the Kitomyo Schist of the Kurosegawa Belt

The Kitomyo Schist from Kurosegawa Belt, Shikoku, has been long considered as the oldest records of subduction metamorphism in Japan, based on an early 1970s Ksingle bondAr dating of white mica. The schist consists of mafic and pelitic layers and …