Isotope geochemistry of the Huize Zn-Pb ore field, Yunnan Province, Southwestern China: Implication for the sources of ore fluid and metals

Li, Wenbo; Huang, Zhilong; Yin, Mudan

doi:10.2343/geochemj.41.65

Cited by 22 publications

(6 citation statements)

References 43 publications

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“…C-O-S and Pb isotopes have been widely used in previous studies for these Pb-Zn deposits in the SYG province (e.g., Zhou et al, 2001;Huang et al, 2003;Han et al, 2007;Li et al, 2007a;Zhou et al, 2013aZhou et al, , 2014aZhou et al, , 2015, whereas the studies of REE are limited Zhou et al, 2011). Therefore, the Banbanqiao Zn-Pb deposit is used as case study in this paper, by analyzing REE contents of sulfide and calcite separates, and country shale and dolostone whole-rock samples, together with new C-O isotopic data and additional S-Pb isotopic data, the authors discuss the origin of the oreforming elements, and propose a model that can account for the formation of Zn-Pb sulfide ores and provide new information for understanding the cause of a huge amount of base metals enriched in the SYG province.…”

Section: Introductionmentioning

confidence: 98%

Geological, rare earth elemental and isotopic constraints on the origin of the Banbanqiao Zn–Pb deposit, southwest China

Zhou

Huang

et al. 2015

Journal of Asian Earth Sciences

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Section: Introductionmentioning

confidence: 98%

Geological, rare earth elemental and isotopic constraints on the origin of the Banbanqiao Zn–Pb deposit, southwest China

Zhou

Huang

et al. 2015

Journal of Asian Earth Sciences

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“…Rare earth element (REE) geochemistry studies can also provide information regarding the sources of ore‐forming materials (Zhao and Jiang, ). Likewise, sulphur and strontium isotopes can be used to trace the sources of S, Ca, Sr, and Ba in metallogenic systems effectively (Ruiz and Kesler, ; Barbieri and Bellanca, ; Hoefs, ; Jiang et al , ; Chen et al , , ; Zhu et al , ; Li et al , ; Wang et al , ; ). Nevertheless, the use of only single‐isotope data may yield incomplete conclusions, and it may even result in contradictory conclusions (Dejonghe et al , ).…”

Section: Introductionmentioning

confidence: 99%

The source of Fengjia and Langxi barite–fluorite deposits in southeastern Sichuan, China: evidence from rare earth elements and S, Sr, and Sm–Nd isotopic data

et al. 2016

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The barite-fluorite metallogenic belt in southeastern Sichuan is one of the most important barite-fluorite ore-concentrated areas in China. In order to find the ore-forming source and the mineralization age of the Fengjia and Langxi barite-fluorite deposit, we systematically evaluated the rare earth element (REE) contents and isotopic characteristics of S, Sr, and Sm-Nd. The results show that the δ34S values of barites and pyrites are high and similar to S isotopic values of gypsum in the Cambrian Qingxudong Formation (∈ 1 q), suggesting that the sulphur source was from Cambrian evaporite strata. The initial 87 Sr/ 86 Sr ratios of fluorites and barites range from 0.708800 to 0.712999, and these values are similar to Cambrian carbonate rocks and Lower Ordovician limestone. Except for black shales of the Lower Cambrian Niutitang Formation, the Ba content of other strata was generally low. The REE characteristics of barite and fluorite have close relationships, in regard to the source of ore-forming materials, to the Lower Cambrian Niutitang Formation black shales. Hence, we have concluded that the Cambrian carbonate rocks and Lower Ordovician limestone provide the source of calcium for mineralization and that the source of barium comes from the Lower Cambrian Niutitang Formation black shales. The fluorine contents of the Upper Sinian Doushantuo Formation and the Lower Cambrian Mingxinshi Formation are much higher than other strata, and these formations could provide the source for fluorine. The Sm-Nd isochron age of fluorites is 104 ± 11 Ma, which demonstrates that the mineralization mainly occurred during the late Yanshanian.

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“…Zheng et al [1] studied the geochemical characteristics of gold orebodies hosted by different ore-bearing rocks in the Nibao gold deposit and found that all the orebodies possess a similar ore-forming source which had been mixed significantly by mantle-derived materials. It had been previously reported that the precipitation of quartz in a hydrothermal deposit has little influence on the Sr isotopic composition of the entire hydrothermal system, and thus, the 87 Sr/ 86 Sr ratio of fluid inclusions in quartz can reflect the properties of the ore-forming fluids [25,45]. Since quartz is closely associated with Carlin-type gold mineralization, variations of the Sr isotopic composition can provide indications for the ore-forming fluids and materials.…”

Section: Ore-forming Fluidsmentioning

confidence: 99%

Quartz Rb-Sr Isochron Ages of Two Type Orebodies from the Nibao Carlin-Type Gold Deposit, Guizhou, China

et al. 2019

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The Nibao gold deposit, which includes both fault-controlled and strata-bound gold orebodies, constitutes an important part of the Yunnan–Guizhou–Guangxi “Golden Triangle” region. Defining the mineralization age of these gold orebodies may provide additional evidence for constraining the formation ages of low-temperature orebodies and their metallogenic distribution in South China. Petrographic studies of gold-bearing pyrites and ore-related quartz veins indicate that these pyrites coexist with quartz or filled in vein-like quartz, which suggests a possible genetic relationship between the two from Nibao gold deposit. Minerals chemistry shows that Rb and Sr are usually hosted in fluid inclusions in quartz ranging from 0.0786 to 2.0760 ppm and 0.1703 to 2.1820 ppm, respectively. The Rb–Sr isotopic composition of gold-bearing quartz-hosted fluid inclusions from the Nibao gold deposit were found to have Rb–Sr isochron ages of 142 ± 3 and 141 ± 2 Ma for both fault-controlled and strata-bound orebodies, respectively, adding more evidence to previous studies and thus revealing a regional gold mineralization age of 148–134 Ma. These results also confirm the Middle-Late Yanshanian mineralizing events of Carlin-type gold deposits in Yunnan, Guizhou, and Guangxi Provinces of Southwest China. In addition, previous studies indicated that antimony deposits in the region which were formed at ca. 148–126 Ma have a close affinity with gold deposits. This illustrates that the regional low-temperature hydrothermal gold mineralization is related in space and time to the Yanshanian (ca. 146–115 Ma) magmatic activity. Specifically, the large-scale gold and antimony mineralization are considered to be inherently related to mantle-derived mafic and ultramafic magmatic rocks associated with an extensional tectonic environment. Based on the initial 87Sr/86Sr ratios of 0.70844 ± 0.00022 (2σ) and 0.70862 ± 0.00020 (2σ) for gold-bearing quartz veins from fault-controlled and strata-bound gold orebodies, respectively, at the Nibao gold deposit, as well as the C, H, O, and S isotopic characteristics of gold deposits located in the Golden Triangle region, we suggest that the mantle-derived material can be involved in the formation of the Nibao gold deposit and that the ore-forming fluid can be derived from a mixed crust–mantle source.

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Isotope geochemistry of the Huize Zn-Pb ore field, Yunnan Province, Southwestern China: Implication for the sources of ore fluid and metals

Cited by 22 publications

References 43 publications

Geological, rare earth elemental and isotopic constraints on the origin of the Banbanqiao Zn–Pb deposit, southwest China

Geological, rare earth elemental and isotopic constraints on the origin of the Banbanqiao Zn–Pb deposit, southwest China

The source of Fengjia and Langxi barite–fluorite deposits in southeastern Sichuan, China: evidence from rare earth elements and S, Sr, and Sm–Nd isotopic data

Quartz Rb-Sr Isochron Ages of Two Type Orebodies from the Nibao Carlin-Type Gold Deposit, Guizhou, China

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