Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution
Multi-stage igneous rocks developed in the recently discovered Huoluotai Cu-(Mo) deposit provide new insights into the controversial late Mesozoic geodynamic evolution of the northern segment of the Great Xing’an Range (NSGXR). Zircon U-Pb dating suggests that the monzogranite, ore-bearing granodior...
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Elsevier
2022-03-01
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| Series: | Geoscience Frontiers |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987121002085 |
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| author | Yong-gang Sun Bi-le Li Zhong-hai Zhao Feng-yue Sun Qing-feng Ding Xu-sheng Chen Jie-biao Li Ye Qian Yu-jin Li |
| author_facet | Yong-gang Sun Bi-le Li Zhong-hai Zhao Feng-yue Sun Qing-feng Ding Xu-sheng Chen Jie-biao Li Ye Qian Yu-jin Li |
| author_sort | Yong-gang Sun |
| collection | DOAJ |
| description | Multi-stage igneous rocks developed in the recently discovered Huoluotai Cu-(Mo) deposit provide new insights into the controversial late Mesozoic geodynamic evolution of the northern segment of the Great Xing’an Range (NSGXR). Zircon U-Pb dating suggests that the monzogranite, ore-bearing granodiorite porphyry, diorite porphyry, and granite porphyry in the deposit were emplaced at 179.5 ± 1.6, 148.9 ± 0.9, 146.1 ± 1.3, and 142.2 ± 1.5 Ma, respectively. The Re-Os dating of molybdenite yielded an isochron age of 146.9 ± 2.3 Ma (MSWD = 0.27). The Jurassic adakitic monzogranite and granodiorite porphyry are characterized by high SiO2 and Na2O contents, low K2O/Na2O ratios, low MgO, Cr, and Ni contents, low zircon εHf(t) values relative to depleted mantle, and relatively high Th contents. They were produced by partial melting of a subducted oceanic slab, with involvement of marine sediments in the magma source and limited interaction with mantle peridotites during magma ascent. The Late Jurassic diorite porphyry is characterized by moderate SiO2 contents, high MgO, Cr, and Ni contents, and positive dominated εHf(t) values, indicating it was produced by partial melting of a subduction-modified lithospheric mantle wedge and underwent limited crustal contamination during magma ascent. The early Early Cretaceous adakitic granite porphyry shows high SiO2 and K2O contents and K2O/Na2O ratios, low MgO, Cr, and Ni contents, enriched Sr–Nd isotopic compositions, and slightly positive zircon εHf(t) values, suggesting it was produced by partial melting of thickened mafic lower crust. The NSGXR experienced a tectonic history that involved flat-slab subduction (200–160 Ma), and tearing and collapse (150–145 Ma) of the Mongol–Okhotsk oceanic lithosphere. The period of magmatic quiescence from ca. 160 to 150 Ma was a response to flat-slab subduction of the Mongol–Okhotsk oceanic lithosphere. Crustal thickening in the NSGXR (145–133 Ma) was due to the collision between the Amuria Block and the Siberian Craton. |
| first_indexed | 2024-03-12T20:04:46Z |
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| id | doaj.art-689caedc37d547cc831ceb929978c67d |
| institution | Directory Open Access Journal |
| issn | 1674-9871 |
| language | English |
| last_indexed | 2024-03-12T20:04:46Z |
| publishDate | 2022-03-01 |
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| spelling | doaj.art-689caedc37d547cc831ceb929978c67d2023-08-02T02:10:18ZengElsevierGeoscience Frontiers1674-98712022-03-01132101344Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolutionYong-gang Sun0Bi-le Li1Zhong-hai Zhao2Feng-yue Sun3Qing-feng Ding4Xu-sheng Chen5Jie-biao Li6Ye Qian7Yu-jin Li8College of Earth Sciences, Jilin University, Changchun 130061, China; College of Mining, Liaoning Technical University, Fuxin 123000, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, China; Corresponding author.College of Mining, Liaoning Technical University, Fuxin 123000, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, ChinaQiqihaer Institute of Geological Exploration, Heilongjiang 161006, ChinaSchool of Environment, Harbin Institute of Technology, Harbin 150090, China; School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, China; Key Laboratory of Mineral Resources Evaluation in Northeast Asia, Ministry of Land and Resources, Changchun 130061, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, China; Key Laboratory of Mineral Resources Evaluation in Northeast Asia, Ministry of Land and Resources, Changchun 130061, ChinaMulti-stage igneous rocks developed in the recently discovered Huoluotai Cu-(Mo) deposit provide new insights into the controversial late Mesozoic geodynamic evolution of the northern segment of the Great Xing’an Range (NSGXR). Zircon U-Pb dating suggests that the monzogranite, ore-bearing granodiorite porphyry, diorite porphyry, and granite porphyry in the deposit were emplaced at 179.5 ± 1.6, 148.9 ± 0.9, 146.1 ± 1.3, and 142.2 ± 1.5 Ma, respectively. The Re-Os dating of molybdenite yielded an isochron age of 146.9 ± 2.3 Ma (MSWD = 0.27). The Jurassic adakitic monzogranite and granodiorite porphyry are characterized by high SiO2 and Na2O contents, low K2O/Na2O ratios, low MgO, Cr, and Ni contents, low zircon εHf(t) values relative to depleted mantle, and relatively high Th contents. They were produced by partial melting of a subducted oceanic slab, with involvement of marine sediments in the magma source and limited interaction with mantle peridotites during magma ascent. The Late Jurassic diorite porphyry is characterized by moderate SiO2 contents, high MgO, Cr, and Ni contents, and positive dominated εHf(t) values, indicating it was produced by partial melting of a subduction-modified lithospheric mantle wedge and underwent limited crustal contamination during magma ascent. The early Early Cretaceous adakitic granite porphyry shows high SiO2 and K2O contents and K2O/Na2O ratios, low MgO, Cr, and Ni contents, enriched Sr–Nd isotopic compositions, and slightly positive zircon εHf(t) values, suggesting it was produced by partial melting of thickened mafic lower crust. The NSGXR experienced a tectonic history that involved flat-slab subduction (200–160 Ma), and tearing and collapse (150–145 Ma) of the Mongol–Okhotsk oceanic lithosphere. The period of magmatic quiescence from ca. 160 to 150 Ma was a response to flat-slab subduction of the Mongol–Okhotsk oceanic lithosphere. Crustal thickening in the NSGXR (145–133 Ma) was due to the collision between the Amuria Block and the Siberian Craton.http://www.sciencedirect.com/science/article/pii/S1674987121002085GeochemistryZircon U-Pb datingHuoluotai Cu-(Mo) depositFlat-slab subductionMongol–Okhotsk Ocean |
| spellingShingle | Yong-gang Sun Bi-le Li Zhong-hai Zhao Feng-yue Sun Qing-feng Ding Xu-sheng Chen Jie-biao Li Ye Qian Yu-jin Li Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution Geoscience Frontiers Geochemistry Zircon U-Pb dating Huoluotai Cu-(Mo) deposit Flat-slab subduction Mongol–Okhotsk Ocean |
| title | Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution |
| title_full | Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution |
| title_fullStr | Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution |
| title_full_unstemmed | Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution |
| title_short | Age and petrogenesis of late Mesozoic intrusions in the Huoluotai porphyry Cu-(Mo) deposit, northeast China: Implications for regional tectonic evolution |
| title_sort | age and petrogenesis of late mesozoic intrusions in the huoluotai porphyry cu mo deposit northeast china implications for regional tectonic evolution |
| topic | Geochemistry Zircon U-Pb dating Huoluotai Cu-(Mo) deposit Flat-slab subduction Mongol–Okhotsk Ocean |
| url | http://www.sciencedirect.com/science/article/pii/S1674987121002085 |
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