Neoarchean to Paleoproterozoic tectonic evolution of the Khondalite Belt in the North China Craton: Constraints from ca. 2.5 Ga and ca. 2.1 Ga charnockites in Zhuozi

Lian, Guanghui; Xu, Zhongyuan; Liu, Zhenghong; Liu, Jin; Li, Pengchuan; Gong, Yundi; Li, Suqing

doi:10.1016/j.precamres.2023.107167

Precambrian Research

2023

DOI: 10.1016/j.precamres.2023.107167

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Neoarchean to Paleoproterozoic tectonic evolution of the Khondalite Belt in the North China Craton: Constraints from ca. 2.5 Ga and ca. 2.1 Ga charnockites in Zhuozi

Guanghui Lian,

Zhongyuan Xu,

Zhenghong Liu

et al.

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Cited by 2 publications

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Paleoproterozoic granite in the Khondalite Belt, northern margin of the North China Craton: Response to the assembly of the Columbia supercontinent

Shi,

Shu,

Chen

et al. 2025

Precambrian Research

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Paleoproterozoic granite in the Khondalite Belt, northern margin of the North China Craton: Response to the assembly of the Columbia supercontinent

Shi,

Shu,

Chen

et al. 2025

Precambrian Research

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Petrogenesis of the paleoproterozoic ultramafites in Wuchuan area, Inner Mongolia: implications for tectonic evolution

Hu,

Zhong,

Zhou

et al. 2024

Front. Earth Sci.

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IntroductionThe east-west trending Khondalite Belt, located on the northern margin of the North China Craton, is linked to the Paleoproterozoic Columbia supercontinent’s evolution. However, the relationship between the Khondalite Belt formation and orogenic processes remains unclear.MethodsField investigations, petrology, zircon U-Pb dating, whole-rock geochemistry, and electron probe mineral thermobarometry.ResultsGarnet-bearing pyroxenite and serpentinite-like dunite in the ultramafites have zircon U-Pb ages of (1947 ± 17) Ma and (1960 ± 25) Ma, respectively. The rocks show characteristics of subalkaline tholeiitic basalt series, with low SiO2 (35.79%–50.77%), TiO2 (0.01%–0.71%), Al2O3 (0.17%–3.39%), and alkalis (0.02%–2.01%), but high Fe2O3 (12.92%–15.06%). These rocks are enriched in light rare earth elements with slight depletion of Eu, enriched in large ion lithophile elements (Rb and K), and depleted in high field strength elements (P, Zr, and Hf).DiscussionThese metamorphic environments imply that the conditions for ultramafites formation were insufficient to induce granulite-facies metamorphism in the surrounding rocks, indicating that granulite-facies metamorphism in the Khondalite Belt is not closely related to post-orogenic extension in the Inner Mongolia-Northern Hebei orogenic belt.

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Neoarchean to Paleoproterozoic tectonic evolution of the Khondalite Belt in the North China Craton: Constraints from ca. 2.5 Ga and ca. 2.1 Ga charnockites in Zhuozi

Cited by 2 publications

References 169 publications

Paleoproterozoic granite in the Khondalite Belt, northern margin of the North China Craton: Response to the assembly of the Columbia supercontinent

Paleoproterozoic granite in the Khondalite Belt, northern margin of the North China Craton: Response to the assembly of the Columbia supercontinent

Petrogenesis of the paleoproterozoic ultramafites in Wuchuan area, Inner Mongolia: implications for tectonic evolution

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