Geochemistry and U–Pb detrital zircon ages of late Permian to Early Triassic metamorphic rocks from northern Liaoning, North China: Evidence for the timing of final closure of the Paleo-Asian Ocean

Jin, Liu; Liu, Zhenghong; Zhao, Chen; Wang, Chujie; Guan, Qingbin; Dou, Shiyong; Song, Shue

doi:10.1016/j.jseaes.2017.06.026

Cited by 27 publications

(37 citation statements)

References 85 publications

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“…Sun, Gou, et al, ). NE China has become a hot geological research area because of its special tectonic location in the easternmost part of the CAOB during recent years, and many studies with new data, techniques, and methods have been conducted in the area (e.g., Cao et al, ; Cao, Xu, Pei, & Zhang, ; B. Chen, Jahn, & Tian, ; Guan, Liu, et al, ; Guan et al, ; Guan, Li, Zhang, Shi, & Li, ; Jia, Hu, Lu, & Qiu, ; Jian et al, ; Jian, Kröner, Windley, et al, ; J. Y. Li, ; Y. J. Liu et al, ; Y. J. Liu, Li, et al, ; J. Liu, Liu, et al, ; S. M. Ren & Huang, ; Wu et al, , ; Wu, Zhao, Wilde, & Sun, ; Xiao et al, ; Xiao & Santosh, ; Yuan, Zhang, Xue, Lu, & Zong ; Zhai & Santosh, ; J. B. Zhou & Wilde, ).…”

Section: Introductionmentioning

confidence: 99%

“…The debate over the timing of final closure of the Paleo‐Asian Ocean has revolved mainly around two possible periods, namely Middle–Late Devonian to early Carboniferous (Shao, ; B. Xu et al, ; B. Xu, Charvet, Chen, & Zhao, ; B. Xu & Chen, ; B. Xu, Zhao, Zhou, Wang, & Luo, ; Zhao et al, ), or late Permian to Early Triassic (Cao et al, ; C. Chen, Ren, Zhao, Yang, & Shang, ; Eizenhöfer, Zhao, Zhang, et al, ; Eizenhöfer, Zhao, Sun, et al, ; Eizenhöfer, Zhao, Zhang, & Sun, ; Guan et al, ; Guan, Li, et al, ; J. Y. Li, ; D. Y. Sun, Wu, Zhang, & Gao, ; Q. Wang, ), but some have suggested that the closure happened during the Middle Triassic (J. Liu, Liu, et al, ; Z. J. Wang, Xu, et al, ). To resolve this issue, it is necessary to carry out extensive investigations on tectonic mélanges in the area, because such mélanges are typically formed in accretionary and collisional orogenic belts (Festa et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Geochemistry and zircon U–Pb geochronology of mafic rocks in the Kaiyuan tectonic mélange of northern Liaoning Province, NE China: Constraints on the tectonic evolution of the Paleo‐Asian Ocean

Guan

Liu

et al. 2019

Geological Journal

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The Kaiyuan tectonic mélange makes up the western part of the Kaiyuan–Yanji Accretionary Complex Belt, NE China, and there has been a long‐standing controversy about its age and tectonic setting. In this paper, we present new zircon U–Pb ages and geochemical data for the mafic rocks of the Lujiapuzi Formation in the Kaiyuan tectonic mélange, and these data provide insights into the tectonic setting during the late Paleozoic and the evolutionary history of the Paleo‐Asian Ocean in the eastern segment of the Central Asian Orogenic Belt (CAOB). SHRIMP U–Pb dating of zircons from samples of albite–actinolite schist and amphibolite yielded a crystallization age of 258 ± 5.5 Ma for the protoliths, suggesting that the protoliths formed during the late Permian. The albite–actinolite schists and amphibolites have similar geochemical characteristics, and they represent metamorphosed basaltic volcanic rocks. Major, rare earth and trace element data show that the mafic rocks have a close affinity with mid‐ocean ridge basalt. REE petrogenetic modelling indicates that the primary magma was generated through the partial melting of a mixed garnet‐ and spinel‐bearing mantle source, and assimilated crustal material and underwent crystal fractionation during ascent. The geochemical features and inherited/xenocrystic zircons in the mafic samples indicate that they formed in a tectonic setting similar to the back‐arc basin. These new findings, together with other previously published data, indicate that the Paleo‐Asian Ocean still existed in the eastern segment of the CAOB during the late Permian to Early Triassic. The Kaiyuan tectonic mélange formed during the Middle Triassic, and its formation may represent the timing of final closure of the Paleo‐Asian Ocean.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geochemistry and zircon U–Pb geochronology of mafic rocks in the Kaiyuan tectonic mélange of northern Liaoning Province, NE China: Constraints on the tectonic evolution of the Paleo‐Asian Ocean

Guan

Liu

et al. 2019

Geological Journal

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“…The tectonic evolution of the Central Asian Orogenic Belt (CAOB) and the subduction of the Paleo‐Pacific Plate beneath Eurasia had a strong influence on the tectonic history of East Asia as well as the formation of a mineralized belt in the region (Gao et al, ; Liu, Li, et al, ; Liu, Liu, et al, ; Liu, Zhao, Han, Eizenhöfer, Zhu, Hou, & Zhang, ; Liu, Zhao, Han, Eizenhöfer, Zhu, Hou, Zhang, & Wang, et al, ; Liu, Zhang, et al, ; Liu, Zhao, Han, Li, et al, ; Liu, Zhao, Han, Zhu, et al, ; Xiao et al, ; Zhao et al, ). NE China represents the eastern section of the Central Asian Orogenic Belt as well as the eastern margin of Eurasia (Figure a).…”

Section: Introductionmentioning

confidence: 99%

“…NE China represents the eastern section of the Central Asian Orogenic Belt as well as the eastern margin of Eurasia (Figure a). This region records not only the final closure of the Paleo‐Asian Ocean but also the subduction of the Paleo‐Pacific Plate beneath Eurasia in Late Paleozoic–early Mesozoic (Xiao et al, ; Wilde, , and references therein; Liu, Liu, et al, ; Ryu & Lee, ; Tang et al, ).…”

Section: Introductionmentioning

confidence: 99%

Final Closure of the Paleo‐Asian Ocean and Onset of Subduction of Paleo‐Pacific Ocean: Constraints From Early Mesozoic Magmatism in Central Southern Jilin Province, NE China

Wang

Xing

et al. 2019

JGR Solid Earth

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When the Paleo‐Asian Ocean closed and the Paleo‐Pacific subduction started in NE China remains controversial. To constrain these key issues, we carried out zircon U‐Pb‐Hf isotopic and whole‐rock geochemical studies of Early Mesozoic igneous rocks in central southern Jilin Province, NE China. Early Mesozoic igneous rocks in region were formed at three stages: the middle Triassic (246 Ma), the late Triassic (219–220 Ma), and the early Jurassic (172–194 Ma). Middle Triassic trachyandesites in southern Jilin Province were solely generated through partial melting of ancient lower crust of the North China Craton (NCC), implying ongoing southward subduction of Paleo‐Asian Ocean Plate beneath the NCC at this time. Late Triassic trachyandesites in southern Jilin Province were derived from the magma mixing/mingling of the NCC lithospheric mantle and juvenile eastern Central Asian Orogenic Belt crustal sources. Late Triassic hornblende gabbros in central Jilin Province were derived from depleted lithospheric mantle previously metasomatized by subduction‐related fluids. Coeval adakitic granodiorites were likely produced through the partial melting of thickened juvenile lower crust. Spatially, these rocks occurred on both sides of the Solonker‐Xra‐Moron‐Changchun Suture Zone and record N–S directed extension accompanied by the final closure of the Paleo‐Asian Ocean. Early Jurassic andesites were produced through mixing/mingling between partial melts derived from eastern Central Asian Orogenic Belt lithospheric mantle and ancient NCC crust. In contrast, Early Jurassic felsic rocks, including A‐type granites, were derived from the partial melting of Neoproterozoic accreted lower crust, jointly implying an extensional setting as the result of the initial subduction from Paleo‐Pacific Plate at this time.

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“…These records surely provide a reliable natural setting in which to explore their relationships (Zhang & Zhai, ). Previous studies of northern Liaoning have paid much attention to the products of Late Palaeozoic magmatic activity (Hao, Huang, & Wang, ; Yang, ; Zhang, Wang, & Li, ; Zhang, Su, & Wang, ; Zhang, Zhang, Zhai, et al, ; Zhang, Zhang, Jiang, et al, , Zhang, Zhao, Ge, et al, ; Liu et al, ; Liu, Liu, et al, ); however, recently, the authors have distinguished Early Palaeozoic granitic intrusions in Fangjiatun area, northern Liaoning, for the first time during the field mapping of the area. Petrographic, geochemical, zircon U–Pb chronologic, and zircon in situ Hf isotope analyses were conducted in this study, and the properties and tectonic setting of the source area of the Early Palaeozoic granitoids in Fangjiatun were discussed; these data provide new evidence for the tectonic evolution of the northern margin of the NCC in the Early Palaeozoic.…”

Section: Introductionmentioning

confidence: 99%

Petrogenesis of the late Early Palaeozoic adakitic granitoids in the southern margin of the Songliao Basin, NE China: Implications for the subduction of the Palaeo‐Asian Ocean

Shi

Liu

et al. 2018

Geological Journal

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Many data have been reported from the Early Palaeozoic subduction complex belt and accretionary arc to the south of the Solonker‐Xar Moron‐Changchun‐Yanji Suture (SXCYS) zone. However, as the suture is covered to the east by the Mesozoic–Cenozoic Songliao Basin, there have yet been no related reports about the Early Palaeozoic igneous rocks in this area. The authors discovered an Early Palaeozoic granitoid intrusion in the Fangjiatun area, northern Liaoning, and performed petrologic, geochemical, zircon U–Pb dating and Hf isotopic analyses on it. Zircon SHRIMP U–Pb dating results show that the intrusion formed at 437–432 Ma, that is, in the late stage of the Early Silurian. Petrogeochemical analysis indicates that the intrusion records 63.14%–66.45% SiO2, with Na2O/K2O ratios of 1.01–6.12 and magnesian index (Mg#) values of 32.42–40.82. The REEs show a certain degree of LREE/HREE fractionation and slightly lower ΣREE contents. The trace elements are relatively enriched in Rb, Ba, Th, K, and Sr (large‐ion lithophile elements [LILEs]) and depleted in Nb, Ta, P, and Ti (high‐field‐strength elements [HFSEs]), displaying continental magmatic arc characteristics. The rocks have high Sr mass fractions, low Y and Yb mass fractions, and high Sr/Y ratios, which are consistent with the geochemical signatures of typical adakites. Zircon Hf isotopic analyses indicate that their εHf(t) values range from 0.29–6.56, reflecting the relatively depleted signatures of the source area. Based on its occurrence location and emplacement time, the intrusion is interpreted to have been produced by tectonic thermal events during the subduction of the Palaeo‐Asian oceanic crust beneath the northern margin of the North China Craton (NCC), thus reflecting the existence of an Early Palaeozoic continental marginal accretionary arc in the eastern segment of the NCC along the south of the SXCYS and provide new evidence for the tectonic evolution of the northern margin of the NCC in the Early Palaeozoic.

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Geochemistry and U–Pb detrital zircon ages of late Permian to Early Triassic metamorphic rocks from northern Liaoning, North China: Evidence for the timing of final closure of the Paleo-Asian Ocean

Cited by 27 publications

References 85 publications

Geochemistry and zircon U–Pb geochronology of mafic rocks in the Kaiyuan tectonic mélange of northern Liaoning Province, NE China: Constraints on the tectonic evolution of the Paleo‐Asian Ocean

Geochemistry and zircon U–Pb geochronology of mafic rocks in the Kaiyuan tectonic mélange of northern Liaoning Province, NE China: Constraints on the tectonic evolution of the Paleo‐Asian Ocean

Final Closure of the Paleo‐Asian Ocean and Onset of Subduction of Paleo‐Pacific Ocean: Constraints From Early Mesozoic Magmatism in Central Southern Jilin Province, NE China

Petrogenesis of the late Early Palaeozoic adakitic granitoids in the southern margin of the Songliao Basin, NE China: Implications for the subduction of the Palaeo‐Asian Ocean

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