Source of copper in the giant Shimensi W-Cu-Mo polymetallic deposit, South China: Constraints from chalcopyrite geochemistry and oxygen fugacity of ore-related granites

Sun, Keke; Chen, Bin; Deng, Jun; Ma, Xinghua

doi:10.1016/j.oregeorev.2018.08.029

Cited by 16 publications

(3 citation statements)

References 69 publications

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“…Accessory minerals include mainly zircon, apatite, epidote, and Fe-Ti oxides. Moreover, the Ehu granites are devoid of Cu (Au)-Mo or Sn-W mineralization [26].…”

Section: Petrology Of Fertile/barren Granitesmentioning

confidence: 99%

“…For example, the ore-related granites in the Dexing and Tongcun PCDs have likely high f O 2 [11]. Meanwhile, Qiu et al [26,62] suggested that the low magma f O 2 found in several Mo ore-related and ore-barren porphyries in western Zhejiang Province may have contributed to the Cretaceous Cu-Mo mineralization gap in the Zhe-Gan-Wan region. This hypothesis is supported by our study, as shown in Figure 9 and Table 4, Nd-Sm interpolation approach yielded logfO 2 values of FMQ −10.29 to +11.87 (avg.…”

Section: Oxygen Fugacity Variation and Implicationsmentioning

confidence: 99%

“…(2) Oxygen fugacities were calculated by the method proposed by [43]. (3) Trace elements data from [5] for Dahutang complex, Qiu et al [26] for Ehu granite and Yang et al [28] for Xihuashan granite. b.d.…”

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confidence: 99%

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Comparison of Magma Oxygen Fugacity and Zircon Hf Isotopes between Xianglushan Tungsten-Bearing Granite and Late Yanshanian Granites in Jiangxi Province, South China

Zhang

Lai

2020

Minerals

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Jiangxi Province (South China) is one of the world’s top tungsten (W) mineral provinces. In this paper, we present a new LA-ICP-MS zircon U-Pb age and Hf isotope data on the W ore-related Xianglushan granite in northern Jiangxi Province. The magmatic zircon grains (with high Th/U values) yielded an early Cretaceous weighted mean U-Pb age of 125 ± 1 Ma (MSWD = 2.5, 2σ). Zircon εHf(t) values of the Xianglushan granite are higher (−6.9 to −4.1, avg. −5.4 ± 0.7) than those of the W ore-related Xihuanshan granite in southern Jiangxi Province (−14.9 to −11.2, avg. −12.5 ± 0.9), implying different sources between the W ore-forming magmas in the northern and southern Jiangxi Province. Compiling published zircon geochemical data, the oxygen fugacity (fO2) of the late Yanshanian granitic magmas in Jiangxi Province (the Xianglushan, Ehu, Dahutang, and Xihuashan plutons) were calculated by different interpolation methods. As opposed to the W ore-barren Ehu granitic magma, the low fO2 of the Xianglushan granitic magma may have caused W enrichment and mineralization, whilst high fO2 may have led to the coexistence of Cu and W mineralization in the Dahutang pluton. Additionally, our study suggests that the absence of late Mesozoic Cu-Mo mineralization in the Zhejiang, Jiangxi, and Anhui Provinces (Zhe-Gan-Wan region) was probably related to low fO2 magmatism in the Cretaceous.

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“…Accessory minerals include mainly zircon, apatite, epidote, and Fe-Ti oxides. Moreover, the Ehu granites are devoid of Cu (Au)-Mo or Sn-W mineralization [26].…”

Section: Petrology Of Fertile/barren Granitesmentioning

confidence: 99%