Tracing the Precambrian tectonic history of East Asia from Neoproterozoic sedimentation and magmatism in the Korean Peninsula

Kim, Sung Won; Kee, Weon Seo; Santosh, M.; Cho, Deung-Lyong; Hong, Paul S.; Ko, Kyoungtae; Lee, Byung Choon; Byun, Uk Hwan; Jang, Yoon Jung

doi:10.1016/j.earscirev.2020.103311

Cited by 25 publications

(10 citation statements)

References 61 publications

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“…Cluzel et al [64,65] divided the Ogcheon Metamorphic Belt into five main tectonic units bounded by thrusts: Iwharyeong, Poeun, Turungsan, Chungju, and Pibanryeong units. Although there has been some controversy regarding deformation stages and the exact timing of metamorphism, it has been suggested that bimodal volcanisms and sedimentation in the rift setting occurred from the Neoproterozoic [67,[74][75][76][77] to late Paleozoic [78,79], followed by the subsequent Permian to Triassic tectonic event that extensively affected the Ogcheon Metamorphic Belt, forming the southeastward stacking of the nappes [64,65,67,72,79,80]. [67,84].…”

Section: Geological Setting and Outcrop Descriptionmentioning

confidence: 99%

Deformation Microstructures of Phyllite in Gunsan, Korea, and Implications for Seismic Anisotropy in Continental Crust

Han

Jung

2021

Minerals

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Muscovite is a major constituent mineral in the continental crust that exhibits very strong seismic anisotropy. Muscovite alignment in rocks can significantly affect the magnitude and symmetry of seismic anisotropy. In this study, deformation microstructures of muscovite-quartz phyllites from the Geumseongri Formation in Gunsan, Korea, were studied to investigate the relationship between muscovite and chlorite fabrics in strongly deformed rocks and the seismic anisotropy observed in the continental crust. The [001] axes of muscovite and chlorite were strongly aligned subnormal to the foliation, while the [100] and [010] axes were aligned subparallel to the foliation. The distribution of quartz c-axes indicates activation of the basal<a>, rhomb<a> and prism<a> slip systems. For albite, most samples showed (001) or (010) poles aligned subnormal to the foliation. The calculated seismic anisotropies based on the lattice preferred orientation and modal compositions were in the range of 9.0–21.7% for the P-wave anisotropy and 9.6–24.2% for the maximum S-wave anisotropy. Our results indicate that the modal composition and alignment of muscovite and chlorite significantly affect the magnitude and symmetry of seismic anisotropy. It was found that the coexistence of muscovite and chlorite contributes to seismic anisotropy constructively when their [001] axes are aligned in the same direction.

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Section: Geological Setting and Outcrop Descriptionmentioning

confidence: 99%

Deformation Microstructures of Phyllite in Gunsan, Korea, and Implications for Seismic Anisotropy in Continental Crust

Han

Jung

2021

Minerals

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“…871–860 Ma and ca. 765–743 Ma meta‐volcanic rocks in the Okcheon Supergroup (Kim et al, 2020 and references therein), ca. 971–843 Ma meta‐volcanic rocks (Shi et al, 2013) and maximum DA of 1262–840 Ma (Zhao, Li, Xiang, et al, 2021 and references therein) in the Qingling Complex, and ca.…”

Section: Discussionmentioning

confidence: 99%

“…After reconstructions reversing the sinistral displacement of the Tancheng–Lujiang Fault, the Neoproterozoic sedimentary basins along the eastern, southeastern, and southern margins of the NCC were juxtaposed to constitute a rift system in the southeastern NCC (Peng et al, 2011). Recently, the traditional Neoproterozoic sedimentary successions in these basins have been identified as the Late Mesoproterozoic to Early Neoproterozoic (1.12–0.85 Ga; e.g., Hu et al, 2019; Kim et al, 2020; Li, Wang, et al, 2021; Su, 2016; Sun et al, 2022; Yang, Xu, et al, 2012; Zhao et al, 2020), while their tectonic settings were interpreted as syn‐collisional basin (Dong et al, 2011; Dong et al, 2014), rift (Lu et al, 2008; Peng et al, 2011; Sun et al, 2020; Zhai et al, 2015) or back‐arc basin (Li et al, 2003), related to the breakup (Peng et al, 2011; Zhai et al, 2015; Zhang, Zhao, et al, 2016; Zhao et al, 2020), or collision–breakup transition (Li, Jia, et al, 2020; Li, Jiang, et al, 2021) of the Rodinia Supercontinent. The relationship between the NCC and North Qinling Terrane (NQT) remains subject to debate, specifically, whether the NQT was part of the NCC (Zhang et al, 2001), the Yangtze Craton (Zhang et al, 2015), or an independent microcontinent (Diwu & Long, 2019; Dong et al, 2011; Lu et al, 2008; Shi et al, 2018), and whether the timing of the initial collision between the NCC and NQT was the Early Neoproterozoic (Dong et al, 2011; Dong et al, 2014) or Early Palaeozoic (Liu, Jahn, et al, 2013; Zhao et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Mesoproterozoic–Neoproterozoic chronostratigraphic framework and provenance analysis in the southeastern North China Craton and its tectonic significance

et al. 2023

Geological Journal

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The Sishilichangshan area of southwestern Xuhuai Basin, located in southeastern North China Craton (NCC) and to the north of the Qinling–Dabie Orogenic belts, is a key, optimal area to study the regional evolution of the NCC because of its stratigraphic differences within the NCC. An integrated approach of the field investigation, element geochemistry, and detrital zircon U–Pb–Hf isotope analysis reveals essential information on the Mesoproterozoic–Neoproterozoic tectonic‐sedimentary evolution of the Xuhuai Basin. The youngest graphical peak ages of detrital zircons from the Shouxian Formation at the top of the Bagongshan Group, the Jiuliqiao Formation at the bottom of the Huainan Group, and the Anyangshan Formation are 1003 ± 25 Ma, 991 ± 80 Ma, and 832 ± 23 Ma, respectively. New age constraints and stratigraphic correlations show that the traditional Neoproterozoic strata in the southern Xuhuai Basin consist of Late Stenian to Early Tonian Bagongshan and Huainan groups, and the Late Tonian Anyangshan Formation, which overlapped unconformably with mid‐late Ediacaran or Cambrian Series 2 strata. The Anyangshan Formation is first termed in this study, and its equivalent strata occur sporadically in the southeastern, southwestern and northwestern NCC. The Tonian Shouxian, Jiuliqiao, and Anyangshan formations are characterized by detrital zircons of multi‐stage Mesoproterozoic ages and predominantly positive εHf(t) values, with differences in mineral composition, whole‐rock geochemistry, and the Early Neoproterozoic detrital zircon age population. Their possible provenance was a Grenvillian orogen extending from the North Qinling Terrane (NQT) to the central Korean Peninsula, supporting Late Mesoproterozoic to Early Neoproterozoic initial accretion related to the continental arc between the NCC and NQT. Tectonic transition from Late Stenian to Early Tonian (~1.18–0.94 Ga) collisional basin to mid‐late Tonian (0.94–0.74 Ga) rift basin is interpreted as the response of the NCC to the assembly and extension of the Rodinia Supercontinent.

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“…The Nangrim and Yeongnam massifs are generally considered part of the Sino-Korean Block, and the affiliation of the Gyeonggi Massif remains debatable (Yin and Nie, 1993;McKenzie et al, 2011;Chough, 2013;D.C. Lee et al, 2017;S.W. Kim et al, 2020;J.-I.…”

Section: Geological Settingmentioning

confidence: 99%

Lithostratigraphic revision of the siliciclastic-dominated basal Taebaek Group (lower–middle Cambrian), Eastern Korea

Choi

Lee

et al. 2023

Episodes

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The lithostratigraphic relationships among the basal Taebaek Group, including the Jangsan, Myeonsan, and Myobong formations, have been controversial until recently. It has long been assumed that the Jangsan and Myeonsan formations are lateral equivalents that are both conformably overlain by the Myobong Formation. However, recent studies have shown that the Jangsan is Precambrian in age and is unconformably overlain by the Cambrian succession, whereas the Myeonsan is a Cambrian unit. Accordingly, this study proposes a revised lithostratigraphic framework of the basal Taebaek Group. The Myeonsan Formation (Cambrian Age 3?) is defined here as a basal Cambrian succession consisting of a basal conglomerate and coarse-grained immature sandstone with detrital heavy minerals that unconformably overlies Precambrian basement. The Myobong Formation (~Cambrian Age 4-Wuliuan) is a fine-grained unit that conformably overlies the Myeonsan Formation. The Myobong is subdivided as follows: Seokpo Member of lenticular cross-laminated sandstone and siltstone; Daehyun Member of laterally continuous alternations of thin-bedded sandstone and siltstone with some carbonate-filled channels; Gurae Member of bioturbated sandstone. The Myeonsan Formation is comparable with lowermost Cambrian units in North China that formed during second-order transgression. Further sealevel rise led to the deposition of the Myobong Formation and its correlative units in North China.

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Tracing the Precambrian tectonic history of East Asia from Neoproterozoic sedimentation and magmatism in the Korean Peninsula

Cited by 25 publications

References 61 publications

Deformation Microstructures of Phyllite in Gunsan, Korea, and Implications for Seismic Anisotropy in Continental Crust

Deformation Microstructures of Phyllite in Gunsan, Korea, and Implications for Seismic Anisotropy in Continental Crust

Mesoproterozoic–Neoproterozoic chronostratigraphic framework and provenance analysis in the southeastern North China Craton and its tectonic significance

Lithostratigraphic revision of the siliciclastic-dominated basal Taebaek Group (lower–middle Cambrian), Eastern Korea

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