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《地质学报(英文版)》 2016-06
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Trilobite Biostratigraphy of the lower Paleozoic(Cambrian–Ordovician) Joseon Supergroup,Taebaeksan Basin,Korea

CHOI Duck K.;LEE Jeong Gu;LEE Seung-Bae;PARK,Tae-Yoon S.;HONG Paul S.;Research Institute of Basic Sciences,Seoul National University;Ministry of Science,ICT,and Future Planning;Korea Institute of Geoscience and Mineral Resources;Korea Polar Research Institute;  
In Korea,trilobites are among the most intensively studied fossil groups in the past century and provide invaluable information about lower Paleozoic stratigraphy,paleogeography,and tectonics of the Korean Peninsula. Trilobites occur in the lower Paleozoic Joseon Supergroup of the Taebaeksan Basin which was part of the Sino-Korean Craton in the Paleozoic. The Joseon Supergroup is divided into the Taebaek,Yeongwol,and Mungyeong groups. The Taebaek and Yeongwol groups are richly fossiliferous,while the Mungyeong Group is poorly fossiliferous. Contrasting trilobite faunal contents of the Taebaek and Yeongwol groups resulted in two separate biostratigraphic schemes for the Cambrian–Ordovician of the Taebaeksan Basin. A total of 22 biozones or fossiliferous horizons were recognized in the Taebaek Group; 19 zones were established in the Yeongwol Group; and four biozones were known from the Mungyeong Group. These trilobite biozones of the Taebaeksan Basin indicate the Joseon Supergroup ranges in age from the Cambrian Series 2 to Middle Ordovician and can be correlated well with the formations of North China,South China,and Australia.
【Key Words】: Trilobites biostratigraphy Cambrian–Ordovician Taebaeksan Basin
【Fund】: supported by a grant from the National Research Foundation of Korea(Grant No.NRF-2014R1A1A2002851)
【CateGory Index】: Q915
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