The tectonic boundary between the Okcheon and Taebaeksan basins, South Korea: A restraining bend of a continental transform fault between the South and North China Cratons
- Authors
- Kim, Hyeong Soo; Ree, Jin-Han; Yi, Keewook
- Issue Date
- 3월-2018
- Publisher
- WILEY
- Keywords
- continental transform fault; Korean peninsula; Okcheon Basin; Taebaeksan basin
- Citation
- ISLAND ARC, v.27, no.2
- Indexed
- SCIE
SCOPUS
- Journal Title
- ISLAND ARC
- Volume
- 27
- Number
- 2
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/76819
- DOI
- 10.1111/iar.12237
- ISSN
- 1038-4871
- Abstract
- The geological relationship between the Okcheon and Taebaeksan basins of the Okcheon belt on the Korean peninsula is a key issue in reconstructing the tectonic evolution of the peninsula. The boundary between the two basin sequences has been variously interpreted as a conformable, unconformable, or thrust contact, without clear evidence being provided for any of these hypotheses. Detailed examination of structures and microfabrics of deformed rocks adjacent to the contact in the Bonghwajae area suggests that the boundary between the two basin sequences is a thrust. Based on the U-Pb ages of detrital zircons from metasedimentary rocks and pre-existing geologic data from the Okcheon belt, the thrust is a relay structure between two segments of a continental transform fault along which the Okcheon Basin was juxtaposed against the Taebaeksan Basin during the Permian-Triassic suturing of the North and South China Cratons.
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