Origin of the Xiaohekou skarn copper deposit and related granitoids in the Zha-Shan ore cluster area, South Qinling, China

Xiong, Xuejian; Zhu, Laimin; Zhang, Guowei; Guo, Anlin; Zheng, Jianping; Jiang, Hang

doi:10.1016/j.oregeorev.2019.103143

Cited by 16 publications

(26 citation statements)

References 90 publications

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“…(a) MgO; (b) TFe 2 O 3 ; (c) CaO; (d) Al 2 O 3 ; (e) mg # ; (f) Dy N /Yb N ratio; (g) V; (h) Sr versus LOI; (i) Ba versus LOI. Data from this study, Wu (2013); Xie et al (2016); Xiong et al (2019); Luo et al (2020); and Zhang et al (2021)…”

Section: Discussionmentioning

confidence: 71%

“…Xie et al (2016) reported 145 ± 1 Ma and 150–146 Ma for ages of magmatism and mineralization at Lengshuigou. Xiong et al (2019) introduced 141 ± 1 to 138 ± 2 Ma for Xiaohekou granitoids. These ages suggest that mineralization in the Zhashui‐Shanyang Basin mainly occurred during the Cretaceous.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies suggest that the emplacement of these granitoids was related to the subduction and closure of the Shangdan Ocean between the NQB and the SQB (Dong & Santosh, 2016; Wang et al, 2013). (3) the latest Mesozoic I‐ and A‐type granitoids (252–142 Ma), which are generally associated with Mo–W–Cu–Au–Ag–Pb–Zn mineralization (Liu et al, 2016; Wang et al, 2020; Xiong et al, 2019; Zhang et al, 2020).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Among them, the Yanshanian granitoids occur as small stocks and host porphyry‐type mineralization (Liu et al, 2013; Wang et al, 2008). Previous studies report that granitoids in the Zhashui‐Shanyang Basin are I‐type, with high‐K calc‐alkaline to shoshonitic and metaluminous to peraluminous geochemical properties (Luo et al, 2020; Xie et al, 2016; Xiong et al, 2019; Zhang et al, 2021). These granitic intrusions formed from 148 to 142 Ma, with a relatively narrow range of ~6 Ma (Xie et al, 2016).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Mao et al (2008) reported that the formation age of these deposits could be divided into two episodes, from 148 to 138 Ma and 131 to 112 Ma; the former was associated with I‐ and A‐type granitoids, whereas the latter was related to I‐, S‐, and A‐type granitoids (Wang et al, 2013). Although the tectonic settings accounting for these porphyry Mo deposits are still controversial, most researchers agree that these deposits have formed during the compression‐extension transition regime (Mao et al, 2008; Wang et al, 2013; Xiong et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Origin of the Tudigou intrusion and associated porphyry Cu mineralization in the southern Qinling, Central China: Implication for regional tectonic setting

et al. 2022

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The Tudigou porphyry Cu deposit is located in the central part of the southern Qinling belt. Copper mineralization is closely associated with monzogranite porphyry.Zircon LA-ICP-MS U-Pb dating of monzogranite porphyry suggests that the ages of magmatism at Tudigou vary between 150 ± 1 and 148 ± 1 Ma and overlap with the molybdenite Re-Os age of 150-148 Ma, indicating that the Tudigou intrusion and associated mineralization formed during the Late Jurassic. The enrichment in largeion lithophile elements, depletion in high-field-strength elements, high Ba/Th and La/ Yb ratios, and negative correlation between Dy/Yb and La/Sm ratios, together with narrow ranges of ε Hf (t) values (ε Hf (t) = À4.0 to +1.4) suggest monzogranite porphyry was derived from a metasomatized lithospheric mantle with minor crustal components contribution, which is also evidenced by the lead isotopic result. The La/Yb ratios of 30 Mesozoic plutons in the southern Qinling belt were used to calculate the Moho depth, which suggests that the magmatism and mineralization in the region occurred during lithosphere thinning in response to the tectonic transition from compression to extension transitional regime. The calculated oxygen fugacity of the Late Mesozoic porphyry deposits in the Qinling-Dabie orogen have identical ΔFMQ values (averaging +1.4 to +2.4). However, the V/Sc ratios (the proxy for water content) are distinct among different deposit sizes, indicating that the dissolved water in the magma plays a critical role in porphyry-type mineralization.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Origin of the Tudigou intrusion and associated porphyry Cu mineralization in the southern Qinling, Central China: Implication for regional tectonic setting

et al. 2022

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Geochemistry, zircon U–Pb geochronology and Lu–Hf isotopes of the Late Jurassic granitoids from the Shuangyuangou deposit, South Qinling, China: Implications for petrogenesis and porphyry Cu metallogeny

Zhao,

Tang,

Guo

et al. 2023

Geological Journal

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The Shuangyuangou copper deposit is located in the southern segment of the Qinling orogenic belt in central China. The ore‐related intrusions include quartz diorite porphyry, granite porphyry and lamprophyre. In this study, we present whole‐rock geochemistry, zircon U–Pb geochronology, trace elements and Lu–Hf isotope data on the Shuangyuangou intrusions which provide critical constraints on the emplacement age, magma origin, petrogenesis and implications for porphyry Cu mineralization in this newly discovered deposit. Zircon U–Pb dating constrains the emplacement age of quartz diorite porphyry, lamprophyre and granite porphyry at 150–147 Ma. The quartz diorite porphyry and granite porphyry display high‐K calc–alkaline I‐type granite affiliation. The rocks show enrichment of LREE and LILE (Rb, Ba), depletion in HREE and HFSE (Nb, Ta, Ti) and absence of Eu anomaly. Zircon εHf(t) values of quartz diorite porphyry, lamprophyre and granite porphyry range from −7.5 to −1.7 with TDM2 ages of 1.3–1.6 Ga. Our data suggest that the parental magma was derived from partial melting of juvenile lower crust and metasomatic lithospheric mantle, with more involvement of mantle material for the lamprophyre. The zircon Eu/Eu* values of 0.55–0.78 suggest high magmatic water content which suppresses the fractionation of plagioclase. In addition, the ΔFMQ values calculated from zircon trace elements range from −0.90 to 2.96 which is a favourable factor for porphyry Cu mineralization at Shuangyuangou. The Late Jurassic Shuangyuangou intrusion and associated Cu mineralization were formed within an intracontinental setting after the collisional assembly of the Qinling orogenic belt.

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Contributions of juvenile lower crust and mantle components to porphyry Cu deposits in an intracontinental setting: evidence from late Mesozoic porphyry Cu deposits in the South Qinling Orogenic Belt, Central China

et al. 2022

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Origin of the Xiaohekou skarn copper deposit and related granitoids in the Zha-Shan ore cluster area, South Qinling, China

Cited by 16 publications

References 90 publications

Origin of the Tudigou intrusion and associated porphyry Cu mineralization in the southern Qinling, Central China: Implication for regional tectonic setting

Origin of the Tudigou intrusion and associated porphyry Cu mineralization in the southern Qinling, Central China: Implication for regional tectonic setting

Geochemistry, zircon U–Pb geochronology and Lu–Hf isotopes of the Late Jurassic granitoids from the Shuangyuangou deposit, South Qinling, China: Implications for petrogenesis and porphyry Cu metallogeny

Contributions of juvenile lower crust and mantle components to porphyry Cu deposits in an intracontinental setting: evidence from late Mesozoic porphyry Cu deposits in the South Qinling Orogenic Belt, Central China

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