Neoarchean granitic rocks from the Jiamiao area of the Dabie orogen: Implications on the formation and early evolution of the Yangtze Craton

Tian, Yang; Wang, Wei; Jin, Wei; Wu, Yuqi; Wang, Jing; Deng, Xin; Huang, Si-Fang

doi:10.1007/s11430-021-9935-5

Cited by 16 publications

(10 citation statements)

References 83 publications

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“…Combining the data from three detrital zircon grains, our analysis showed five major age components of 258–218, 500–400, 800–700, 2000–1700 and 2500 Ma (Figure 13c). The two oldest age populations, P1 (about 2500 Ma) and P2 (1700–2000 Ma), are consistent with recent records of the Neoarchean and Late Paleoproterozoic–Early Mesoproterozoic magmatic activity in the Dabie Orogen (Qiu et al, 2020; Qiu, Tong, et al, 2021; Qiu, Yang, et al, 2021; Tian et al, 2022; Tong et al, 2022; Zhao et al, 2014; Zhao, Zhu, Wu, et al, 2021). Only a small proportion of Archean and Proterozoic–Mesoproterozoic xenocrystic zircon ages have been recorded in the Jiangnan Orogen.…”

Section: Discussionsupporting

confidence: 84%

“…Zircon U-Pb dating reveals that the Dabie Orogen displays four primary age groups, with peaks occurring at 2490, 1850, 746 and 2500 Ma) and P2 (1700-2000 Ma), are consistent with recent records of the Neoarchean and Late Paleoproterozoic-Early Mesoproterozoic magmatic activity in the Dabie Orogen (Qiu et al, 2020;Qiu, Tong, et al, 2021;Qiu, Yang, et al, 2021;Tian et al, 2022;Tong et al, 2022;Zhao et al, 2014;Zhao, Zhu, Wu, et al, 2021). Orogen (Tong et al, 2022).…”

Section: Source Lithotypessupporting

confidence: 69%

“…The metamorphic rocks of the Dabie Orogen consist of a large amount of Neoproterozoic (800-700 Ma) granitic gneiss and quartzite and an abundant Caledonian terrane of 500-400 Ma gneiss (Liu, 2018;Liu et al, 2008;Xiang et al, 2012;Zhao et al, 2014). Archean-Paleoproterozoic magmatism has also been reported, including the 2.77 Ga granulites, 2.65-2.41 Ga granites, 2.0-1.8 Ga mafic dikes, eclogites and jadeite quartzites (Qiu et al, 2020;Qiu, Tong, et al, 2021;Qiu, Yang, et al, 2021;Tian et al, 2022;Wang, Guo, et al, 2021;Wang, Bai, et al, 2021;Zhao, Zhu, Wu, et al, 2021). Tong et al (2022) reported a group of 254-156 Ma magmatic zircon ages in the Kangjiawan mélange in the western part of the Dabie Orogen.…”

Section: Geological Settingmentioning

confidence: 99%

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Geochemistry and geochronology of Upper Triassic sedimentary rocks from the south of the Dabie Orogen: Implications for the paleoenvironment, provenance and tectonic setting

Zhao,

Hu,

Zhan

et al. 2023

Geological Journal

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The formation and evolution of the foreland basin in the south of the Dabie Orogen are both closely related to the uplift of the orogenic belt. However, the Late Triassic paleoenvironment and the provenance of the sediments in the foreland basin remain controversial. Nine samples from the Upper Triassic Puqi Group of the foreland basin were analysed for whole‐rock major and trace elements and three sandstone samples were selected for zircon dating by U–Pb laser ablation inductively coupled plasma mass spectrometry. The concentrations of some major (e.g., CaO and Na2O) and trace (e.g., Rb, Sr and Ba) elements varied over a large range and showed different degrees of depletion. A series of major and trace element indicators, as well as the patterns of the rare earth elements, suggested derivation from felsic igneous rocks. The Late Triassic experienced fluctuations between cold warm climates, as indicated by the chemical weathering index ranging from 51.33 to 88.65. The CaO/(FeO + CaO), Rb/Sr and Ba/K ratios indicated that the paleosalinity changed from high to low. The Fe2O3/FeO, U/Th, V/Cr and Ni/Co ratios indicated an oxidizing sedimentary environment. The cathodoluminescence images, Th/U ratios and rare earth elements patterns of the detrital zircons all indicated a magmatic origin. Three samples showed significant peak ages of 224, 440, 748, 1870 and 2492 Ma, corresponding to the development of the Dabie Orogen. Our comprehensive analyses suggest that the Upper Triassic Puqi Group was formed by deposition during continental–continental collision. The Dabie Orogen was exhumed in the Late Triassic and supplied detrital sediments to the foreland basin.

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Section: Discussionsupporting

confidence: 84%

Section: Source Lithotypessupporting

confidence: 69%

Section: Geological Settingmentioning

confidence: 99%

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Geochemistry and geochronology of Upper Triassic sedimentary rocks from the south of the Dabie Orogen: Implications for the paleoenvironment, provenance and tectonic setting

Zhao,

Hu,

Zhan

et al. 2023

Geological Journal

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“…Hence, both the obtained ages and Hf-isotopic data from the detrital zircons in this investigation strongly suggest the presence of Paleoarchean continental crust in the lower crust, which was reworked to contribute to the Neoarchean crustal magmas (Li et al, 2018). The results further support that the Neo-Archean basement is more widespread beneath the Yangtze Block than previously assumed (Zheng J P et al, 2006;Wang et al, 2010;Zhao et al, 2021;Tian et al, 2022).…”

Section: Neoarchean and Paleoproterozoicsupporting

confidence: 84%

Detrital Zircon Geochronology and Provenance of Metasedimentary Rocks from the Susong Complex Zone in the Dabie Orogen

Yang

Liu

et al. 2023

Acta Geologica Sinica (Eng)

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The Susong complex zone is a relatively low‐grade metamorphic unit located in the southern part of the Dabie orogen and preserves a variety of metasedimentary rocks, mostly with epidote‐amphibolite facies. However, their depositional age, provenance and tectonic setting of sedimentary protolith remain controversial due to the lack of fossils, precise dating and integrated geochemical investigation. This study has conducted whole‐rock elemental, and zircon U‐Pb SHRIMP dating and Lu‐Hf isotope analyses on three types of representative metasedimentary rocks including garnet‐bearing mica‐quartz schist, graphite‐muscovite‐quartz schist and dolomitic marble from the Susong complex zone. The U‐Pb SHRIMP dating data indicate that the sedimentary protolith of these rocks have the maximum depositional ages of less than 750–840 Ma and have various sedimentary provenances. In combination with zircon Lu‐Hf isotope compositions, the provenance of the metasedimentary rocks in the region is for the first time documented to be mainly derived from four groups of magmatic rocks formed at ∼2.5 Ga, ∼2.0 Ga, ∼1.4 Ga and ∼0.8 Ga in response to four episodes of igneous activity in the northeastern margin of the Yangtze Block. The conventional geothermobarometry combined with rare metamorphic zircon ages indicate that the studied rocks underwent the late Triassic continental subduction‐related metamorphism with peak epidote‐amphibolite facies conditions at P = 0.34–0.91 GPa and T = 427–532 °C. In addition, results of the elemental contents (i.e., La, Ce, Th and ΣREE) and ratios (i.e., Eu/Eu* and LaN/YbN) suggest that the protoliths of the metasedimentary rocks were mainly shales, wackes and limestones, most probably related to the Rodinia supercontinent rifting along the northern margin of the Yangtze Block during the Neoproterozoic.

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“…As one of three Precambrian cratons, the South China Craton consists of the Yangtze Block in the northwest and the Cathaysia Block in the southeast (Figures 1a and 1b). The Archean basement rocks are mainly exposed in the Yangtze Block (Chen & Xing, 2016), including the Muzidian, Kongling, Zhongxiang, Yudongzi and Douling complexes in the northern part of the Yangtze Block (Guo et al, 2014; Tain et al., 2023; K. Wang et al, 2018; Zhou et al, 2018). Although the Paleo‐Mesoproterozoic sedimentary units and igneous rocks have long been viewed as the oldest rocks in the southwestern Yangtze Block (Lu et al., 2019), the Cuoke complex with minor TTG rocks as old as ca.…”

Section: Geological Backgroundmentioning

confidence: 99%

Continental Crust Rejuvenation Across the Paleo‐Mesoarchean Transition Resulted From Elevated Mantle Geotherms

Lu,

Xu,

Wang

et al. 2024

Geophysical Research Letters

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The increase in initial Hf isotopes identified in early Mesoarchean detrital zircon is commonly interpreted as a reflection of the geodynamic transition from stagnant‐lid to mobile‐lid tectonics. However, given the lack of petrogenetic context, interpreting detrital zircon may lead to spurious conclusions. In this contribution, we use zircon U‐Pb‐Hf‐O isotopic and bulk rock compositions of newly identified 3.05–2.9 Ga granitoids from the SW Yangtze Block to posit petrogenesis within an isotopically juvenile magmatic system. A statistical analysis of these data with a global igneous zircon Lu‐Hf isotopic compilation reveals an increase in average initial radiogenic Hf isotopes during the Paleoarchean to Mesoarchean transition. We posit that the Earth's continental crust underwent a global rejuvenation across the Paleo‐Mesoarchean transition. This rejuvenation can be explained by an independently observed increase in mantle temperatures resulting from mantle thermal evolution and does not require a change in tectonic style.

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Neoarchean granitic rocks from the Jiamiao area of the Dabie orogen: Implications on the formation and early evolution of the Yangtze Craton

Cited by 16 publications

References 83 publications

Geochemistry and geochronology of Upper Triassic sedimentary rocks from the south of the Dabie Orogen: Implications for the paleoenvironment, provenance and tectonic setting

Geochemistry and geochronology of Upper Triassic sedimentary rocks from the south of the Dabie Orogen: Implications for the paleoenvironment, provenance and tectonic setting

Detrital Zircon Geochronology and Provenance of Metasedimentary Rocks from the Susong Complex Zone in the Dabie Orogen

Continental Crust Rejuvenation Across the Paleo‐Mesoarchean Transition Resulted From Elevated Mantle Geotherms

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