The Middle Permian to Triassic tectono-magmatic system in the southern Korean Peninsula

Kim, Sung Won; Kwon, Sanghoon; Jeong, Youn-Joong; Kee, Weon Seo; Lee, Byung Choon; Byun, Uk Hwan; Ko, Kyoungtae; Cho, Deung Lyong; Hong, Paul S.; Park, Seung-Ik; Santosh, M.

doi:10.1016/j.gr.2020.11.017

Cited by 21 publications

(5 citation statements)

References 54 publications

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“…The Imjingang and Okcheon belts are located between these massifs (Figure 1). The Permian–Triassic continental collision between the North China Block and South China Block caused orogenic events in the East Asian continental margins and significantly affected the present geological framework for the Korean Peninsula (Cheong et al, 2019; Cho et al, 2008; Kim, 2020; Kim et al, 2021; Kwon et al, 2009, 2013; Oh, 2012; Oh et al, 2005; Oh & Kusky, 2007; Park, Kim, et al, 2014; Park, Kwon, et al, 2014; Sagong et al, 2005). During the Early to Middle Triassic, strong deformation and (ultra) high‐pressure or high‐temperature metamorphism occurred in the central Korean Peninsula as a result of continent–continent collision and the resultant crustal thickening (Cho et al, 2008; Kim et al, 2000; Kim et al, 2006; Kwon et al, 2009, 2013; Lee & Cho, 2003; Oh et al, 2005).…”

Section: Geologic Settingmentioning

confidence: 99%

“…The Permian–Triassic continental collision between the North China Block and South China Block during the closure of the Palaeo‐Tethys Ocean resulted in the formation of the Early Mesozoic orogenic belt (Songrim orogeny) in the central Korean Peninsula (e.g., Cho et al, 2017; Choi & Park, 2019; de Jong et al, 2015; Kim, Kwon, et al, 2011; Kim et al, 2021; Kim et al, 2006; Kim, Oh, & Kim, 2011; Kwon et al, 2009; Kwon et al, 2013; Oh, 2006, 2012; Oh et al, 2005; Oh et al, 2015; Park, Kim, et al, 2014; Park, Kwon, et al, 2014; Park & Park, 2020). Recent studies suggest that, at the end of the Songrim orogeny, gravitational collapse of the thickened crust produced nonmarine sedimentary basins within or in front of the orogenic belts (e.g., Lee, Park, Choi, & Sim, 2021; Park et al, 2018; Park et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Post‐collisional sedimentation of the Early Mesozoic Munamdong Formation in South Korea

Choi

Gihm

2022

Geological Journal

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Post-collisional processes cause uplift and exhumation of the overthickened crust together with the formation of sedimentary basins. To determine the influence of post-collisional processes on sedimentation, we investigated the Early Mesozoic Munamdong Formation of the Yuljeon Basin in the Korean Peninsula, deposited immediately after the orogenic events caused by the collision of the North China Block and South China Block. Facies analysis shows that the Munamdong Formation was deposited in a streamflow-dominated alluvial fan under tropical/subtropical climatic conditions. Vertically, the Munamdong Formation exhibits a fining-upward trend with changes in stacking patterns, from highly amalgamated channel conglomerates to floodplain fines, indicating a progressive increase in the creation of accommodation space exceeding sediment supply. Moreover, the types of gravels in the conglomerate beds and the petrographic characteristics of the sandstones suggest that the sediments were supplied rapidly from nearby Precambrian high-grade metamorphic rocks and Triassic post-collisional plutons. These results indicate the supply of sediment from restricted sources, implying that the drainage basins did not widen even during intermittent quiescence of basin subsidence. We interpret the finingupward trend and uniform composition of sediments to have resulted from rapid uplift and exhumation of the orogenic crust, together with rapid tectonic subsidence, possibly aided by post-collisional magmatism. This study shows that the Munamdong Formation reflects a close connection between surficial sedimentation and postcollisional tectonic processes. This study will help to fill the gap of understanding between deep crustal processes and post-collision sedimentation with insight into the Early Mesozoic tectonic environment of the East Asian continental margins.

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Section: Geologic Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Post‐collisional sedimentation of the Early Mesozoic Munamdong Formation in South Korea

Choi

Gihm

2022

Geological Journal

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“…Zircon data from Sulu Orogenic belt are derived from: Li, Chen, Zheng, & Hu, 2016;Huang et al, 2006;Charles et al, 2011;Chen, Zheng, Sun, & Zhao, 2013;Chen, Tang, Zheng, & Wu, 2016;Katsube, Hayasaka, Santosh, Li, & Terada, 2009;Lan et al, 2011;Liou, Tsujimori, Chu, Zhang, & Wooden, 2006;Liu, Xu, Liou, & Song, 2004;Liu et al, 2008;Tang et al, 2008;Yang et al, 2003;Yang et al, 2009;Zhang, Zhao, Zheng, & Dai, 2010;Zhang, Zhao, Zheng, Liu, & Xie, 2012;Zhang, Yang, Wooden, Liou, & Li, 2005;Zhao, Wang, Liu, Wang, & Pan, 2016;Zhou, Wilde, Liu, & Han, 2012. Zircon data from Korean Peninsula are derived from: Zhao et al, 2006;Kim, Hwang, Ree, & Yi, 2013;Han, Ree, Cho, Kwon, & Armstrong, 2006;Kim, Kwon, Santosh, Williams, & Yi, 2011;Kim et al, 2017;Park et al, 2016;Kim, Kwon, Jeong, Kee, & Santosh, 2020;Jo, Cheong, Yi, & Li, 2017;Kim et al, 2016;Kim, Williams, Kwon, & Oh, 2008;Kim et al, 2018;Kee et al, 2019;Yi, Lee, Kwon, & Cheong, 2014;Kim et al, 2015;Lee, Cho, & Yi, 2017;Park, Kwon, Kim, Hong, & Santosh, 2017;Kim, Turek, Chang, Park, & Ahn, 2008;Horie et al, 2009;Kim, Chang, & Turek, 2003;…”

Section: Sediment Source Of Late Jurassic-early Cretaceousmentioning

confidence: 99%

Response of provenance transition of Middle Jurassic–Early Cretaceous sediments to tectonic domain transformation in the North Yellow Sea Basin, Eastern North China Craton

Cheng

et al. 2021

Geological Journal

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In the Late Mesozoic, the Eastern North China Craton changed from being controlled by the Palaeo‐Asian tectonic domain to the marginal Pacific tectonic domain. The Eastern North China Craton transformed the E–W compression to NNE–SSW extensional tectonics under the influence of two tectonic domain transformations. However, the timing of the transformation of the tectonic domains remains controversial. The North Yellow Sea Basin is located in an important position in the Eastern North China Craton at the junction of the Pacific and Eurasian plates and is controlled by two tectonic domains. Therefore, the sediments in the basin are faithful records of the transformation of the two tectonic domains. Based on the latest and high‐precision detrital zircon U–Pb dating data, sandstone modal analysis, and elemental geochemical analysis in the North Yellow Sea Basin combined with regional tectonic, palaeontological, and palaeoclimatic evidence, this paper discusses the provenance from the Middle Jurassic to Early Cretaceous, which responds to the Late Mesozoic tectonic domain transformation in the Eastern North China Craton, and provides important evidence of provenance in the North Yellow Sea Basin to determine the time of tectonic domain transformation. These results suggest that the source rocks of sediments in the North Yellow Sea Basin have changed from ancient sediments (ancient craton/recycle orogenic belt) in the Middle Jurassic to Late Jurassic, to felsic igneous rocks in the Early Cretaceous. The peak of zircon U–Pb ages changed from 234, 1,842, and 2,429 Ma in the Late Jurassic to 217 and 1,871 Ma in the Early Cretaceous. The provenance changed from the Sulu Orogenic Belt and Precambrian basement of the Jiaodong Peninsula in the Late Jurassic, to the igneous rocks and Precambrian basement of the Liaodong Peninsula and Korean Peninsula in the Early Cretaceous. The provenance direction of the sediments changed from south‐west in the Late Jurassic to the north and south‐east in the Early Cretaceous. The tectonic setting of the basin changed from compression to extension. The changes in the peaks of zircon U–Pb age, characteristics of the source rocks, provenance direction, and basin tectonic setting in the Middle Jurassic to Early Cretaceous in the North Yellow Sea Basin are a response to the change from E–W compression to NNE–SSW extensional tectonics caused by the transformation of two tectonic domains. In the Early Cretaceous, the Eastern North China Craton completed the transformation of two tectonic domains that were influenced and controlled by the marginal Pacific tectonic domain.

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“…A recent research proposed a at slab subduction model for the Indosinian orogenic event in the Cathaysia Block, which involved a Middle Triassic exhumation event 97 . The Triassic intrusive rocks of the Korean Peninsula are widespread [98][99][100] , and have largely been interpreted as post-collisional magmatism [100][101][102] . The Cathaysia-a nity of the southwestern Korean Peninsula proposed in this study indicates a close paleogeographical proximity of the Korean Peninsula to the Cathaysia Block after the Permo-Triassic collision.…”

Section: Tectonic a Nity Of The Southwestern Korean Peninsulamentioning

confidence: 99%

A New Titanopteran from Southwestern Korean Peninsula: The Triassic Age of the Nampo Group and its Tectonic Implications

Park

Kim

Nam

et al. 2021

Preprint

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Titanopterans are well-known as giant predatory insects in the Triassic, but not only their rare occurrences have been limited to Central Asia and Australia, but also their phylogenetic affinity remains unresolved. The age of the nonmarine sequences of the Nampo Group at the southwestern Korean Peninsula is unclear, and the tectonic affinity of the surrounding area is contentions. Here we report a new titanopteran Magnatitan jongheoni gen. et sp. nov. the Amisan Formation, Nampo Group, which marks the first discovery of the titanopteran fossil from outside Central Asia and Australia, presenting a possible circum-Tethys Ocean distribution, at least, during the Late Triassic. The new fossil shows a clearly divided CuPb, which will help understand the evolution of titanopterans in the future. Moreover, the occurrence of a titanopteran finally confirms the Late Triassic age of the Nampo Group. In China, similar Late Triassic non-marine sequences are widespread in the Cathaysia Block, in which various geological features similar to those in the southwestern Korean Peninsula, such as a Paleozoic magmatism and an eclogite facies with Neoproterozoic protoliths, have been recently documented as in the southeastern Korean Peninsula. Such similarities may suggest a close tectonic affinity between the northeastern Cathaysia Block and the southwestern Korean Peninsula.

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The Middle Permian to Triassic tectono-magmatic system in the southern Korean Peninsula

Cited by 21 publications

References 54 publications

Post‐collisional sedimentation of the Early Mesozoic Munamdong Formation in South Korea

Post‐collisional sedimentation of the Early Mesozoic Munamdong Formation in South Korea

Response of provenance transition of Middle Jurassic–Early Cretaceous sediments to tectonic domain transformation in the North Yellow Sea Basin, Eastern North China Craton

A New Titanopteran from Southwestern Korean Peninsula: The Triassic Age of the Nampo Group and its Tectonic Implications

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