Late Neoarchean reworking of the Mesoarchean crustal remnant in northern Liaoning, North China Craton: A U–Pb–Hf–O–Nd perspective

Li, Zhuang; Wei, Chunjing; Chen, Bin; Fu, Bin; Gong, Mingyue

doi:10.1016/j.gr.2019.10.020

Cited by 23 publications

(5 citation statements)

References 126 publications

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“…After magnetic selection and electromagnetic filter, the heavy fraction was dominated by non-magnetic minerals, from which zircons were obtained by heavy-liquid separation. Zircons were hand-picked under a Liu et al, 2017a;Liu et al, 2017b;Liu et al, 2017c;Liu et al, 2018a;Liu et al, 2018b;Guan et al, 2019;Li et al, 2020;Liu et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

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First Discovery of Paleoproterozoic (ca. 2.25 Ga) Meta-Mafic Dyke on the Northeastern Margin of the Longgang Block, North China Craton

Shan

Jin

et al. 2022

Front. Earth Sci.

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Section: Methodsmentioning

confidence: 99%

“…FIGURE 1 | (A) Sketch map showing tectonic unites of the eastern North China Craton (after Zhao and Zhai, 2013); (B) Geological map of the study area (reported ages are fromLiu et al, 2017a;Liu et al, 2017b;Liu et al, 2017c;Liu et al, 2018a;Liu et al, 2018b;Guan et al, 2019;Li et al, 2020;Liu et al, 2020).…”

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confidence: 99%

First Discovery of Paleoproterozoic (ca. 2.25 Ga) Meta-Mafic Dyke on the Northeastern Margin of the Longgang Block, North China Craton

Shan

Jin

et al. 2022

Front. Earth Sci.

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“…The Eastern Block in the NCC has an east‐northeast strike distributed between the Longgang and the Liaonan blocks, extending to the Jiaodong Peninsula to the south‐west, that is the JLJB, the northern part of which is composed of Palaeoproterozoic meta‐sedimentary rocks, granites and mafic intrusions in Liaoning and Jilin Province (Figure 1; Li, Wei, Chen, Fu, & Gong, 2020). Voluminous meta‐sedimentary rock units have been identified for decades in geological fieldwork, although their deposition mechanism and tectonic settings are still controversial.…”

Section: Geological Settingmentioning

confidence: 99%

Geochemistry of two types of Palaeoproterozoic granites, and zircon U–Pb dating, and Lu–Hf isotopic characteristics in the Kuandian area within the Jiao‐Liao‐Ji Belt: Implications for regional tectonic setting

Zhao

Zhang

et al. 2020

Geological Journal

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Palaeoproterozoic granites accompanied with granulite‐facies gneisses can be recognized in the Kuandian area, northern Jiao‐Liao‐Ji Belt (JLJB). This study highlights two episodes of Palaeoproterozoic magmatism, identified by granites and biotite monzogranitic gneisses herein. Zircon grains from biotite monzogranitic gneiss with homogeneous oscillatory zoning yielded a U–Pb age of 2,153 ± 16 Ma, in accordance with the age of zircon cores from the monzogranitic gneiss. Zircon grains from the two granites yielded upper intercept ages of 1,892 ± 38 Ma and 1,859 ± 36 Ma respectively. Monzogranitic gneiss samples are enriched in Th, Rb, Pb, U, and REE, but depleted in Sr and P. They have high 1,000 × Ga/Al ratios versus Zr, Ce, Nb, Y contents, which are usually interpreted as the features of classical A‐type granite that originated in a lithospheric extension setting. The ~1.89–1.86 Ga granite samples have relatively high Al, Rb, Th, U and low Sr, Zr, and Hf contents. These features, combined with the observation of minor apatite grains under the microscope are similar with the I‐type granites. In situ zircon Lu–Hf isotopic analyses revealed that ~1.89–1.86 Ga granite had a similar range and TDM2 ages with the monzogranitic gneiss, but with much lower εHf(t) values. The monzogranitic gneiss may have originated from an Archean crust, while the later granite may be derived from melting of the partial melting of the monzogranitic gneiss or the Archean crust that generated the monzogranitic gneiss. The ~1.89–1.86 Ga granites, together with the coeval S‐type granites in the JLJB, represent an orogeny process that may involve a Palaeoproterozoic subduction.

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“…Three major Paleoproterozoic orogenic belts have been recognized within the NCC [3], of which the Jiao-Liao-Ji Belt (JLJB) in the Eastern Block extends more than 1000 km ([4]; Figure 1). Great attention had been paid to the debate on the early Paleoproterozoic tectonic evolution model of the JLJB, and up to four tectonic models have been proposed as follows: an intra-continental rift opening and closing model [5,6], an arc-continent collision model [7][8][9][10][11], a rifting ocean followed by late subduction and collision model [6,12,13] and a back-arc basin (or retro-arc foreland basin) opening and closure model [14][15][16][17]. [18,19]).…”

Section: Introductionmentioning

confidence: 99%

Geochronology and Geological Implications of Paleoproterozoic Post-Collisional Monzogranitic Dykes in the Ne Jiao-Liao-Ji Belt, North China Craton

Zhao,

Lyu,

Han

et al. 2023

Minerals

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Hardly any previous studies have focused on the granitic dykes which intrude into the Paleoproterozoic Liaohe Group in the Liaodong Peninsula, northeast of the North China Craton. In situ zircon U-Pb dating, Lu-Hf isotopic and geochemical analyses on three representative monzogranite dykes were taken in this study. These dykes have relatively high content of SiO2 (72.20%–74.78%) and K2O (2.83%–6.37%), and have characteristics of high-K calc-alkaline to shoshonite series. Two dyke samples have I-type granite features and have high Sr/Y ratios and positive Eu anomalies, showing an adakitic feature. Another dyke has a high ratio of Ga/Al, but has a low Zr saturation temperature, which differs from the typical A-type granite. Zircon grains from these three dykes have typical magmatic zoning in CL images and yield consistent U-Pb ages of ~1859–1852 Ma, which are interpreted as the crystallization ages of these dykes. Hf isotopic analyses yield mainly negative εHf(t) values and TDM2 ages of 2782–2430 Ma, similar to those of the 2.2–2.1 Ga granitoids and meta-sedimentary rocks (the Liaohe Group), indicating these monzogranitic dykes may have been sourced from melting of Paleoproterozoic granitoids and meta-sedimentary rocks. The monzogranitic dykes were generated under a post-collisional geological setting after the Jiao-Liao-Ji orogeny process.

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Late Neoarchean reworking of the Mesoarchean crustal remnant in northern Liaoning, North China Craton: A U–Pb–Hf–O–Nd perspective

Cited by 23 publications

References 126 publications

First Discovery of Paleoproterozoic (ca. 2.25 Ga) Meta-Mafic Dyke on the Northeastern Margin of the Longgang Block, North China Craton

First Discovery of Paleoproterozoic (ca. 2.25 Ga) Meta-Mafic Dyke on the Northeastern Margin of the Longgang Block, North China Craton

Geochemistry of two types of Palaeoproterozoic granites, and zircon U–Pb dating, and Lu–Hf isotopic characteristics in the Kuandian area within the Jiao‐Liao‐Ji Belt: Implications for regional tectonic setting

Geochronology and Geological Implications of Paleoproterozoic Post-Collisional Monzogranitic Dykes in the Ne Jiao-Liao-Ji Belt, North China Craton

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