DOI: 10.1007/s00531-013-0985-2
论文题名: Extensional deformation along the southern boundary of the Gyeonggi Massif, South Korea: Structural characteristics, age constraints, and tectonic implications
作者: Han R. ; Min K. ; Ree J.-H. ; Foster D.A.
刊名: International Journal of Earth Sciences
出版年: 2014
卷: 103, 期: 3 起始页码: 757
结束页码: 776
语种: 英语
英文关键词: Extensional deformation
; Gyeonggi Massif
; North and South China blocks
; Okcheon Belt
; Permo-Triassic collision
; Songrim Orogeny
; Syn-tectonic muscovite
Scopus关键词: argon-argon dating
; crustal evolution
; deformation mechanism
; emplacement
; extensional tectonics
; muscovite
; Permian-Triassic boundary
; pluton
; regional metamorphism
; structural geology
; tectonic evolution
; tectonic setting
; Gyeonggi Massif
; Ogcheon Belt
; South Korea
英文摘要: The Permo-Triassic collision of the North and South China blocks caused the development of the Dabie-Sulu Orogen in China and Songrim Orogen in the Korean Peninsula. Extension after this collision is known from the Dabie-Sulu Orogen, but post-orogenic extension is not well defined in the Korean Peninsula. Extensional deformation along the southern boundary of the Gyeonggi Massif in Korea is characterized by top-down-to-the-south ductile shearing and subsequent brittle normal faulting, and was predated by regional metamorphism and north-vergent contractional deformation. Extension occurred between ~220 and 185 Ma based on the ages of pre-extensional regional metamorphism and post-extensional pluton emplacement. 40Ar/39Ar dating of syn-extensional muscovite in quartz-mica mylonite yields an age of 187.8 ± 5.6 (2σ) Ma, in agreement with constraints from structural relationships. Together with the extensional deformation identified along the northern boundary of the Gyeonggi Massif (~226 Ma), the extension along the southern boundary is probably related to the exhumation of the massif during late-orogenic or post-orogenic extension associated with the Songrim Orogeny of the Korean Peninsula and forms an important event in the Phanerozoic crustal evolution of East Asia. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896538015&doi=10.1007%2fs00531-013-0985-2&partnerID=40&md5=1c9312b2874c9ce42840d7139d4068b1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70481
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources, Daejeon, 305-350, South Korea; Department of Geological Sciences, University of Florida, Gainesville, FL, 32611, United States; Department of Earth and Environmental Sciences, Korea University, Seoul, 136-701, South Korea
Recommended Citation:
Han R.,Min K.,Ree J.-H.,et al. Extensional deformation along the southern boundary of the Gyeonggi Massif, South Korea: Structural characteristics, age constraints, and tectonic implications[J]. International Journal of Earth Sciences,2014-01-01,103(3)