| Reference Type | Journal (article/letter/editorial) |
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| Title | Deeply Derived Magma Controlling the Polymetallic Mineralization at Shuikoushan, South China: Constraints from Mineral U–Pb Dating and Whole-Rock Geochemistry |
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| Journal | Minerals |
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| Authors | Wang, Jionghui | Author |
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| Du, Yulong | Author |
| Zhang, Fanghua | Author |
| Li, Qiushi | Author |
| Zuo, Changhu | Author |
| Zhang, Xi | Author |
| Wang, Yong | Author |
| Wu, Jiangwei | Author |
| Ma, Shengchao | Author |
| Year | 2023 | Volume | < 13 > |
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| Issue | < 12 > |
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| URL | |
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| DOI | doi:10.3390/min13121508Search in ResearchGate |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 16957793 | Long-form Identifier | mindat:1:5:16957793:5 |
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| GUID | 22c71d80-3b36-4106-a64a-e5ebb69896cc |
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| Full Reference | Wang, Jionghui, Du, Yulong, Zhang, Fanghua, Li, Qiushi, Zuo, Changhu, Zhang, Xi, Wang, Yong, Wu, Jiangwei, Ma, Shengchao (2023) Deeply Derived Magma Controlling the Polymetallic Mineralization at Shuikoushan, South China: Constraints from Mineral U–Pb Dating and Whole-Rock Geochemistry. Minerals, 13 (12) doi:10.3390/min13121508 |
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| Plain Text | Wang, Jionghui, Du, Yulong, Zhang, Fanghua, Li, Qiushi, Zuo, Changhu, Zhang, Xi, Wang, Yong, Wu, Jiangwei, Ma, Shengchao (2023) Deeply Derived Magma Controlling the Polymetallic Mineralization at Shuikoushan, South China: Constraints from Mineral U–Pb Dating and Whole-Rock Geochemistry. Minerals, 13 (12) doi:10.3390/min13121508 |
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| In | Link this record to the correct parent record (if possible) |
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| Abstract/Notes | Various magmaticāhydrothermal activities have resulted in different styles of polymetallic mineralization in South China. Shuikoushan is a large Fe-Cu-Pb-Zn-Au-Ag orefield situated in fold-and-thrust belts within the South China Block. Two types of granodiorite have been identified in recent drilling work. The early-stage, coarse-grained granodiorite has developed magnetite-bearing skarns in the deep level. The late-stage, fine-grained granodiorite is associated with garnet-hematiteāmagnetiteāpyriteāsphaleriteāchalcopyrite-bearing skarns in its contact zone. Away from the garnet-bearing skarn are calciteāquartzāpyriteāsphaleriteāgalena veinlets in faulted breccia. Fieldwork has identified iron mineralization in both skarns, whereas copper mineralization was only discovered in the garnet-bearing skarns. Lead, zinc, gold, and silver mineralization were observed in the garnet-bearing skarns and faulted breccia. Zircon UāPb analyses suggested the emplacement of two granodiorite at 167.8 Ā± 0.8 Ma (MSWD = 1.1, N = 31) and 163.6 Ā± 0.7 Ma (MSWD = 1.3, N = 32). Apatite and garnet UāPb dating further indicated the magnetite-bearing skarns of 166.2 Ā± 1.9 Ma (MSWD = 4.5, N = 27), the hematiteāmagnetiteāsulfide-bearing skarns of 158.6 Ā± 2.8 Ma (MSWD = 1.3, N = 34), and the calciteāquartzāsulfide veinlets of 159.5 Ā± 5.2 Ma (MSWD = 1.7, N = 24). The timeāspace relationship between the two intrusions and hydrothermal activities suggests that the fine-grained granodiorite is responsible for polymetallic mineralization. Whole-rock geochemistry analyses demonstrated the enrichment of LILEs and the depletion of Nb and Ta in two granodiorites, with a slight enrichment in LREEs and flat HREE patterns. These granodiorite bodies therefore belong to high-K calc-alkaline magma generated via the crustās partial melting. The fine-grained granodiorite generally has a lower HREE and higher Dy/Yb, Sr/Y ratios than coarse-grained granodiorite, corresponding to the source of magma in garnet stable lower crust. The residual garnet keeps ferric iron in melts, leaving the fine-granodiorite more oxidized for copper and gold concentration. Through these analyses and our drilling work, a continuous skarnāhydrothermalāepithermal system has been identified for Cu-Pb-Zn-Au-Ag targeting in Shuikoushan. |
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