Age, genesis, and tectonic setting of the Qiushuwan Cu–Mo deposit in East Qinling (Central China): Constraints from Sr–Nd–Hf isotopes, zircon U–Pb and molybdenite Re–Os dating

Liu, Qingquan; Li, Huan; Shao, Yongjun; Girei, Musa Bala; Jiang, Weicheng; Yuan, Haiming; Xu, Ze‐Min

doi:10.1016/j.oregeorev.2021.103998

Cited by 16 publications

(4 citation statements)

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“…(a) Histogram of crustal model ages (T DM2 ); (b) diagram of εHf(t) values versus U–Pb ages (data of porphyry deposits in Shanyang are from published works; Bao et al, 2019; Chen et al, 2023; Liu et al, 2021; Luo et al, 2020; Wu, 2013; Xiong et al, 2019; Zhang et al, 2021. The range of the Triassic mafic lower crust is based on the Hf isotope of the Triassic MMEs from Qin et al (2010), Chen et al (2023), Xu et al (2023)).…”

Section: Resultsmentioning

confidence: 99%

“…The intense magmatic activity in the region includes Proterozoic to Mesozoic granitoid intrusions. Intermediate-felsic intrusions are widely distributed in the area and can be divided into two belts according to the spatial distribution and metallogenic features (Liu et al, 2021). The northern belt hosts Yuanjiagou, Xiaohekou, Yuanzijie and Xiaguanfang plutons which intrude the Upper Devonian Xiaodonggou and Tongyuji formations.…”

Section: Regional Geologymentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

Section: Regional Geologymentioning

confidence: 99%

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 Cu-Mo deposit of Qiushuwan is situated in the northern region of the Shangdan Suture Zone, precisely within the North Qinling terrane [10]. The region is distinguished by a structural framework that comprises structures oriented in a NWW and NW direction, which are in accordance with the tectonic lineaments of the area [9]. The Early Proterozoic Qinling Group is the primary rock formation in the region, characterized by the presence of schist, marble, and granitic gneiss [11].…”

Section: Deposit Geologymentioning

confidence: 99%

Spread Spectrum Induced Polarization Survey for Qiushuwan Copper-Molybdenum Deposits in South of Henan Province, China.

Ahmad,

Chen,

Ahmed

et al. 2024

Preprint

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The Qiushuwan Cu-Mo deposit, located in the East Qinling molybdenum belt, which is a major mining site recognized for its enormous reserves of medium-sized molybdenum. In order to enhance our comprehension and ascertain supplementary mineral resources, it is critical to conduct an in-depth investigation of both the deep and peripheral regions. The primary goal of this study is to investigate the Qiushuwan Copper Molybdenum Mine, which is located in Zhenping County, Henan Province. The spread spectrum-induced polarization (SSIP) method is utilized as a means of conducting mining exploratory analysis. Significant findings have been obtained through the collection of SSIP data, geological analysis, and electrical parameter study of rock and ore samples along profile-80. By conducting a meticulous examination of the SSIP data at suitable frequencies, two prominent conductive ore bodies, specifically C2 and C4, have been successfully discovered. C2 exhibits a correlation with granite porphyry and molybdenum veins, while C4 is linked to a skarn deposit that contains a concentration of copper ore. The spatial differences in conductivity within the research area have been precisely characterized using resistivity models obtained from the SSIP data. The precision and dependability of our conclusions have been confirmed through the integration of borehole data and the matching of geological sections with inversion models. The recovered core samples show a diverse range of minerals, containing both valuable ores and minerals that have undergone alteration. Pyrite constantly appears with molybdenite in the majority of samples. The aforementioned results provide a strong foundation for future exploration initiatives and sustainable resource exploitation, enabling informed decision-making in the effective use and administration of natural resources. This study adds to the existing body of knowledge on the Qiushuwan Cu-Mo deposit and improves exploration methods in the region by utilizing the SSIP approach. The findings are a useful asset for geologists, mining experts, and stakeholders, offering essential knowledge for future exploration and sustainable utilization of resources.

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“…The formation of porphyry molybdenum deposits is closely related to the subduction of the oceanic crust [2]. They have been classified as Climax-type (rift-related, represented by the deposits in the Climax-Henderson Mo belt in Minerals 2023, 13, 951 2 of 19 America) [3][4][5], Endako-type (arc-related, represented by the Endako and MAX deposits in Canada; Quartz Hill, Thompson Creek, and Buckingham deposits in America; Tamboras deposit in Peru; and deposits in the Gangdese metallogenic belt and the Central Asian orogenic belt in China) [6][7][8][9][10][11][12][13][14][15][16][17][18], and Dabie-type (collision-related, typified by deposits in the Qingling-Dabie Mo belt in China) deposits [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

The Role of Reductive Carbonaceous Surrounding Rocks in the Formation of Porphyry Mo Deposits

Guo

Duan

et al. 2023

Minerals

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Porphyry Mo deposits are the most important type of Mo resource. They result from a high oxygen fugacity of the parent magma, which acts as an effective indicator for evaluating the mineralization. In the ore-forming system of porphyry Mo deposits, sulfur exists mainly as sulfate in highly oxidized magma but as sulfide in ores. What triggers the reduction in the mineralization system that leads to sulfide precipitation has not yet been determined. Most of the previous studies have focused on the origin and evolution of the ore-forming parent magma, and the effects of reductive surrounding rocks on porphyry mineralization have been ignored. In this study, a comprehensive geological–geochemical investigation and review have been performed on the typical porphyry Mo deposits, the Nannihu-Sandaozhuang, Yuchiling, and Shapingou deposits in China, and the Mt. Emmons deposits in America. Black carbonaceous sedimentary layers commonly surround porphyry Mo ores, which are widely altered and discolored during mineralization. CH4 is commonly present in fluid inclusions in the main mineralization stage, and the δ13CV-PDB values of calcite and fluid inclusions from the altered surrounding rocks and ore minerals are generally low and significantly different from those of marine sedimentary carbonate rocks, indicating that the involvement of reductive components from carbonaceous surrounding rocks might be key to the redox state transformation leading to mineral precipitation. On the other hand, the CH4 produced by the thermal decomposition of organic matter or carbonaceous reaction with H2O can diffuse into the ore-forming system along the structural fractures and reduce the SO42− in the ore-forming hydrothermal fluids to form sulfide precipitation without direct contact between the intrusion and the carbonaceous surrounding rocks. Moreover, the CH4 content controls the location of the orebody formation with the high content producing orebodies mainly in the porphyry intrusion, while the low CH4 content results in the orebodies mainly occurring at the contact zone between the porphyry and carbonaceous surrounding rocks. Compared to the magmatic stage of mineralization, the involvement of reductive components in the carbonaceous surrounding rocks during the hydrothermal stage is more favorable for forming giant/large Mo deposits. The highly oxidized porphyry with reductive carbonaceous surrounding rocks or Fe-rich volcanic rocks offers a new indicator for efficiently evaluating porphyry Mo mineralization.

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Age, genesis, and tectonic setting of the Qiushuwan Cu–Mo deposit in East Qinling (Central China): Constraints from Sr–Nd–Hf isotopes, zircon U–Pb and molybdenite Re–Os dating

Cited by 16 publications

References 112 publications

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

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

Spread Spectrum Induced Polarization Survey for Qiushuwan Copper-Molybdenum Deposits in South of Henan Province, China.

The Role of Reductive Carbonaceous Surrounding Rocks in the Formation of Porphyry Mo Deposits

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