SHRIMP allanite U-Th-Pb dating of bimodal Triassic metamorphism of Neoarchean tonalitic gneisses, Daeijak Island, central Korea

Kim, Yoonsup; Cheong, Chang-Sik; Lee, Yuyoung; Williams, Ian

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SHRIMP allanite U-Th-Pb dating of bimodal Triassic metamorphism of Neoarchean tonalitic gneisses, Daeijak Island, central Korea

Date

2009

Authors

Kim, Yoonsup

Cheong, Chang-Sik

Lee, Yuyoung

Williams, Ian

Publisher

Springer

Abstract

The microstructures, compositions and U-Th-Pb ages of allanite from tonalitic gneisses in a Neoarchean migmatite complex, Daeijak Island, central Korea, have been investigated. Allanite crystals up to ∼300 μm in diameter occur with accessory apatite, i