Nd isotope and detrital zircon U–Pb age constraints on the provenance of the Pyeongan Supergroup (late Paleozoic–Early Triassic) in central eastern Korea

Mun Gi Kim, KIOST Korea Institute of Ocean Science and Technology, Global Ocean Research Center, Busan, South Korea, Yong Il Lee, Seoul National University, School of Earth and Environmental, Seoul, South Korea and Taejin Choi, Chosun University, Gwangju, Korea, Republic of (South)