Geochemical and zircon U-Pb-Hf isotopic study of volcanic rocks from the Yaolinghe Group, South Qinling orogenic belt, China: Constraints on the assembly and breakup of Rodinia

Zhao, Limin; Li, Yilong; Chen, Rong; Fu-lin, LI; Xiang, Hua; Zheng, Jianping; Brouwer, Fraukje M.

doi:10.1016/j.precamres.2022.106603

Cited by 15 publications

(2 citation statements)

References 173 publications

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“…Age spectra of the Neoproterozoic magmatic rocks in the South Qinling Belt. Data sources: Chen et al, 2006; Dong et al, 2017, Geng, 2010; Hong et al, 2009; He et al, 2022; Hu et al, 2016; Li et al, 2003; Li et al, 2003, 2012; Ling et al, 2008, Liu, Jahn, et al, 2011; Liu et al, 2014, 2022; Liu & Zhang, 2013; Lu et al, 1999; Nie et al, 2019; Niu et al, 2006, Qiu et al, 2020, 2021; Wang et al, 2009, 2017, 2019, 2021; Wang, Liu, et al, 2023; Wu et al, 2012; Xu et al, 2016; Xue et al, 2011, Yan et al, 2011, 2014; Yang et al, 2012, Yang et al, 2020; Zhang et al, 2004, 2013, 2016, 2018, Zhao et al, 2022; Zhu et al, 2014; This study.…”

Section: Discussionmentioning

confidence: 99%

Petrogenesis and tectonic setting of the Neoproterozoic Douling dioritic–granodioritic–granitic intrusion in the northern Yangtze Block, Central China

Hu,

Liu,

Gao

et al. 2024

Geological Journal

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Voluminous Neoproterozoic intermediate to felsic rocks intruded the Neoarchean Douling Complex in the South Qinling Belt of Central China, which may provide new constraints on the controversial issue about the nature of the continental margin of the Yangtze Block during the Neoproterozoic. This study presents zircon U–Pb geochronology, whole‐rock geochemistry and Sr–Nd isotope of the Douling dioritic–granodioritic–granitic intrusion, aiming to clarify its petrogenesis and tectonic significance. The dioritic–granodioritic–granitic rocks yield similar zircon U–Pb ages ranging from 735 to 705 Ma. The enrichment of light rare earth elements (LREEs) and large‐ion lithophile elements (LILEs), and depletion of high‐ field‐strength elements (HFSEs) (e.g., Nb, Ta) are typical features of arc magmatic rocks. The whole‐rock Sr–Nd isotopic compositions show initial 87Sr/86Sr ratios ranging from 0.7034 to 0.7059, and εNd(t) values from −7.3 to −1.4. Elemental and isotopic data suggest that the Neoproterozoic dioritic–granodioritic–granitic rocks were co‐genetic and were generated by partial melting of lower crust materials combined with mantle‐derived melts. The granites were the derivative product of dioritic rocks by fractional crystallization of amphibolite, plagioclase, mica and zircon. Combined with literature data, we infer a subduction‐related setting for the northern margin of the Yangtze Block during the Middle Neoproterozoic, and a tectonic model of accretion along an Andean‐type active continental margin after the collision of the Douling micro‐block with the northern Yangtze Block is further proposed.

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Section: Discussionmentioning

confidence: 99%

Petrogenesis and tectonic setting of the Neoproterozoic Douling dioritic–granodioritic–granitic intrusion in the northern Yangtze Block, Central China

Hu,

Liu,

Gao

et al. 2024

Geological Journal

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“…They are mainly composed of amphibolite, felsic gneiss, schist, and marble, occurring as tectonic slices. The Wudang and Yaolinghe groups, characterized by Neoproterozoic volcanic-sedimentary series, usually suffer from a low-grade metamorphic overprint [16,17]. Neoproterozoic and Silurian to Devonian intermediate to felsic intrusive rocks were found mostly in the eastern part of South Qinling [18,19].…”

Section: Geological Settingmentioning

confidence: 99%

Compositional Diversity of Early Mesozoic Granites in South Qinling: Derivation from Heterogenous Basement Rocks in the Orogenic Belt

Ye,

Li,

Huo

et al. 2024

Geosciences

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Granitic rocks forming in the syn- to post-orogenic stages can trace the compositional and structural complexity of the crust beneath an orogenic belt. The Qinling orogenic belt undertook multiple stages of tectonics and magmatism, resulting in the multifaceted evolution and compositional diversity of the crust. In the present study, the Guangtoushan and Miba plutons in South Qinling were chosen to reveal the crustal heterogeneity in study area via isotopic geochemistry and zircon geochronology. The Guangtoushan pluton was emplaced between ~215 Ma and ~202 Ma and the Miba pluton formed at ~213 Ma, as constrained by zircon U-Pb isotopic dating. Granitic rocks of the Miba pluton are characterized by amphibole bearing and homogeneous composition, with relatively depleted Sr-Nd isotopic compositions (initial 87Sr/86Sr values of 0.7060 to 0.7084 and initial εNd values of −5.4 to −9.5) and high Pb isotopic values. The Guangtoushan pluton contains muscovite and complex inherited zircon grains and has variable Sr-Nd isotopic composition (initial 87Sr/86Sr values of 0.7050 to 0.7091 and initial εNd values of −4.5 to −12.9) and low Pb isotopic values. Felsic magmas of the Guangtoushan pluton should be derived mainly from meta-sedimentary rocks beneath South Qinling, while the Miba pluton originated primarily from partial melting of meta-igneous rocks. The compositional diversity recorded in the Early Mesozoic plutons was caused by the heterogeneous crust, and partial melting was induced by heating of the up-welling asthenosphere in a post-collision setting.

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Remobilization and enrichment of Nb during magmatic and hydrothermal processes: insights from titanite in Nb-rich dyke swarms of South Qinling, China

Zhu,

Wang,

Pan

et al. 2024

Contrib Mineral Petrol

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Geochemical and zircon U-Pb-Hf isotopic study of volcanic rocks from the Yaolinghe Group, South Qinling orogenic belt, China: Constraints on the assembly and breakup of Rodinia

Cited by 15 publications

References 173 publications

Petrogenesis and tectonic setting of the Neoproterozoic Douling dioritic–granodioritic–granitic intrusion in the northern Yangtze Block, Central China

Petrogenesis and tectonic setting of the Neoproterozoic Douling dioritic–granodioritic–granitic intrusion in the northern Yangtze Block, Central China

Compositional Diversity of Early Mesozoic Granites in South Qinling: Derivation from Heterogenous Basement Rocks in the Orogenic Belt

Remobilization and enrichment of Nb during magmatic and hydrothermal processes: insights from titanite in Nb-rich dyke swarms of South Qinling, China

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