A general ore formation model for metasediment-hosted Sb-(Au-W) mineralization of the Woxi and Banxi deposits in South China

Li, Huan; Zhu, Da-Peng; Shen, Liwei; Algeo, Thomas J.; Elatikpo, Safiyanu Muhammad

doi:10.1016/j.chemgeo.2022.121020

Cited by 32 publications

(4 citation statements)

References 119 publications

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“…Calculations show that the proportion of radiogenic Ar in Abunabu mining area is in the range of 0.772%-7.858%, which indicates that only a low content of radiogenic Ar ( 40 Ar*/%) originated from the crust. Due to the different degrees of greenschist facies metamorphism of the host strata, the source of oreforming fluid is also the result of the joint action of the modified airsaturated water and metamorphic fluid (Zhai et al, 2018;Li H et al, 2022). In comparison, Figure 7C shows that a few samples lie close to the atmospheric saturated water field, suggesting that in addition to crustal fluids, mantle-derived fluids and a small amount of atmospheric precipitation were involved in the mineralisation.…”

Section: Figurementioning

confidence: 99%

“…Subsequently, owing to the detachment of lithospheric mantle, mantle heat flow ascended, accompanied by granite emplacement and regional heat flow metamorphism, resulting in the extraction of H 2 O, CO 2 , Cl, S, Sb, As, Au, and other elements from the ore bearing formationtectonic, thereby forming ore-bearing fluids. Under the influence of a temperature and pressure gradient, these fluids migrated and Frontiers in Earth Science frontiersin.org precipitated minerals in the low-pressure dilatant zone, resulting in mineral enrichment (Li H et al, 2022). During the tectonic-magmatic superimposed enrichment mineralisation stage, which occurred after the Miocene, the Indian plate continued to subduct northwards, resulting in lateral extrusion and NE-SW-directed tensile stress.…”

Section: Genesis Of Mineral Deposits In the Tethys Himalayan Metallog...mentioning

confidence: 99%

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Genesis of the Abunabu antimony deposits in the Tethys Himalayan metallogenic belt: Evidence from He–Ar and S isotopes of stibnite

Wang²,

Li³

et al. 2023

Front. Earth Sci.

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Introduction: The Abunabu antimony mining area is located between the Indus–Yarlung Tsangpo suture and the southern Tibetan detachment system. Ore deposits in the mining area provide an excellent opportunity to understand the nature and genesis of antimony mineralisation in the Tethys Himalayan metallogenic belt.Methods: In this study, we analysed the He–Ar and S isotopic compositions of stibnite-hosted fluid inclusions as a basis for investigating the sources of ore-forming fluids in the Abunabu mining area and the Tethys Himalayan metallogenic belt.Results: The analysed stibnites have 4He contents of 0.016 × 10−7–1.584 × 10–7 cm3 STP/g, 40Ar contents of 1.37 × 10−7–2.94 × 10–7 cm3 STP/g, 40Ar/36Ar ratios of 303.8–320.7, and 3He/4He (Ra) ratios of 0.021–0.351. These isotopic features indicate that the ore-forming fluids were primarily metamorphic fluids of crustal origin, with small amounts of magmatic-derived materials and modified air-saturated water with low 40Ar*/4He ratios. The δ34S values of stibnite vary within a narrow range of −4.9‰ to −3.5‰, with a mean value of −4.31‰, indicating a deep magmatic origin.Discussion: On the basis of these results and a compilation of data for sulphide deposits in the metallogenic belt, we infer that compositional variations in the He and Ar isotopes of the ore-forming fluids of each antimony deposit in the Tethys Himalayan metallogenic belt are independent of each other. This suggests that antimony deposits in the belt had similar ore-forming fluid sources and mixing processes and that differences in the metallogenic tectonic setting within the belt emerged only in the later stages of deposit evolution. Our new results and compiled data also show that antimony–gold deposits and lead–zinc–antimony polymetallic deposits in the Tethys Himalayan metallogenic belt differ in their sulphur isotopic compositions and that multiple sulphur sources were involved in each of these types of deposit.

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Section: Figurementioning

confidence: 99%

Section: Genesis Of Mineral Deposits In the Tethys Himalayan Metallog...mentioning

confidence: 99%

Genesis of the Abunabu antimony deposits in the Tethys Himalayan metallogenic belt: Evidence from He–Ar and S isotopes of stibnite

Wang²,

Li³

et al. 2023

Front. Earth Sci.

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“…Multistage magmatic activities occurred in Central Hunan during the period from the Caledonian to Yanshanian, and various magmas were formed on the margin of the Central Hunan basin and the center of secondary uplift. The most intense magmatic activity occurred during the Triassic period and became weaker in the late Paleozoic and late Mesozoic [1,14,15].…”

Section: Regional Geological Background and Geological Characteristic...mentioning

confidence: 99%

Tungsten–Gold Metallogenetic Potential of the Ziyunshan Pluton in Central Hunan, South China: Insights from Element Geochemistry of Granites

Leng

YuLong

et al. 2023

Minerals

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In order to reveal the metallogenic potential of the Indosinian Ziyunshan granite in central Hunan, the temporal, spatial and genetic relationship between the mineralization and the granite is discussed, and the concentrations of ore-forming elements for different granites are measured. The geochemistry of the elements, isotope geochemistry and chronology, and the data derived from the analysis on Au-W deposit in the area are compared with the geologic features of the regional metallogenic rock. The results indicate that Ziyunshan granite is an irregular shaped complex of late Indosinian by multi-stage intrusion. Elements such as W, Sn, Cu, Pb, Ag, Sb, Be, Li and Ta are enriched in the granite. The sulfophilic elements including Au, Pb, Zn and Ag are relatively enriched in the main body of the Ziyunshan granite, while the lithophilic elements including W and Sn are relatively enriched in the late phase of the Ziyunshan granite. The zoning of the ore-forming elements could be observed in the granite: Nb and Ta (inside the granite); W, Sn, Mo and Bi (inner contact zone); Pb, Zn and Cu (contact zone); and Au and Sb (outer contact zone). All the deposits in the area are formed after the intrusion of the Ziyunshan granite except the Ni-Ta-Sn ore formed simultaneously with the Ziyunshan granite. The Ziyunshan granite provides necessary heat, active fluid and partial ore-forming materials sources, which may show good metallogenic potential.

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“…Much attention has been paid to fluorite in recent years, and countries and organizations such as China, the United States, Australia, and the European Union, classify it as a strategic and critical mineral [4][5][6]. South China is tectonically formed by the amalgamation of the Yangtze Block and Cathaysia Block [7,8] (Figure 1a) and is rich in fluorite resources, accounting for more than 80% of the total known fluorite reserve in China [9]. Fluorite deposits in South China can be classified into three major types: (1) hydrothermal fluid filling type;…”

Section: Introductionmentioning

confidence: 99%

Genetic Relationship between Granite and Fluorite Mineralization in the Shuanghuajiang Fluorite Deposit, Northern Guangxi, South China: Evidence from Geochronology, REE, and Fluid Geochemistry

Fang

Feng

et al. 2022

Minerals

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Hydrothermal vein-type fluorite deposits are the most important metallogenic type of fluorite deposits in South China, most of which are closely related to granitoid in space; however, the genetic relationship between granitoid and fluorite mineralization remains controversial. The Shuanghuajiang fluorite deposit in northern Guangxi of South China is a typical vein-type fluorite deposit hosted in a granite pluton, with the orebodies occurring within brittle faults. Zircon U-Pb dating of the hosting Xiangcaoping granite yields an emplacement age of 228.04 ± 0.76 Ma (MSWD = 0.072). Fluorite Sm-Nd dating yields an isochron age of 185 ± 18 Ma. The new age data indicate that the fluorite deposit was precipitated significantly later than the emplacement of the hosting Xiangcaoping granite pluton. The fluorite and granite exhibit similar rare earth element (REE) patterns with negative Eu anomalies, suggesting that fluorine (F) was derived from the granite. The fluorite fluid inclusions show a homogeneous temperature mainly ranging between 165 °C and 180 °C. Salinity is typically less than 1% NaCl eqv, while the δ18OV-SMOW and δDV-SMOW values are between −5.2‰–−6.1‰ and −17.35‰–−23.9‰, respectively. These indicate that the ore-forming fluids were a NaCl-H2O system with medium-low temperature and low salinity, which is typical for meteoric water. Given the combined evidence of geochronology, REE, and fluid geochemistry, the mineralization of the Shuanghuajiang fluorite deposit is unrelated to magmatic-hydrothermal activity but achieved via hydrothermal circulation and leaching mechanisms. Our study presents a genetic relationship between the fluorite deposit and granitoids based on an example of northern Guangxi, providing a better understanding of the genesis of hydrothermal vein-type fluorite deposits in granitoids outcropping areas.

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A general ore formation model for metasediment-hosted Sb-(Au-W) mineralization of the Woxi and Banxi deposits in South China

Cited by 32 publications

References 119 publications

Genesis of the Abunabu antimony deposits in the Tethys Himalayan metallogenic belt: Evidence from He–Ar and S isotopes of stibnite

Genesis of the Abunabu antimony deposits in the Tethys Himalayan metallogenic belt: Evidence from He–Ar and S isotopes of stibnite

Tungsten–Gold Metallogenetic Potential of the Ziyunshan Pluton in Central Hunan, South China: Insights from Element Geochemistry of Granites

Genetic Relationship between Granite and Fluorite Mineralization in the Shuanghuajiang Fluorite Deposit, Northern Guangxi, South China: Evidence from Geochronology, REE, and Fluid Geochemistry

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