Geochemistry and geochronology of the Banxi Sb deposit: Implications for fluid origin and the evolution of Sb mineralization in central-western Hunan, South China

Li, Huan; Wu, Qianhong; Evans, Noreen J.; Zhou, Zhe-Kai; Kong, Hua; Xi, Xiao-Shuang; Lin, Zhiwei

doi:10.1016/j.gr.2017.11.010

Cited by 68 publications

(23 citation statements)

References 112 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sulfur isotope analysis was carried out on stibnite and pyrite at the Analytical Laboratory of the Beijing Research Institute of Uranium Geology using a MAT-251 EM mass spectrometer with analytical procedures almost like those described by [71,72]. As for the S isotope analyses, handpicked stibnite and pyrite samples were crushed into powders of 200-mesh size and placed into a tin capsule.…”

Section: Stable and Radiogenic Isotopesmentioning

confidence: 99%

“…Lead isotope analyses of stibnite were carried out at the Analytical Laboratory of the Beijing Research Institute of Uranium Geology using a MAT-261 EM mass spectrometer, using the method similarly described in [72][73][74]. Sulfide samples were dissolved completely in ultrapure acids of HNO 3 + HCl at 180 • C. The Pb in the samples was separated and purified using a two-column AG 1-X8 anion resin method.…”

Section: Stable and Radiogenic Isotopesmentioning

confidence: 99%

“…The Pb isotopic values of stibnite divides of the Lyhamyar deposit are listed in Table 4 and plotted in Figure 13 [72,76]. The Pb isotopic ratio clusters into two groups (A and B).…”

Section: Pb Isotopesmentioning

confidence: 99%

“…Group A shows relatively high radiogenic lead, its 206 Pb for stibnite from the Lyhamyar antimony deposit. Framework trends are plotted for reference (after [72,76]). These isotopic data suggest a mixing source of Pb.…”

Section: Pb Isotopesmentioning

confidence: 99%

See 3 more Smart Citations

Ore Geology, Fluid Inclusions, and (H-O-S-Pb) Isotope Geochemistry of the Sediment-Hosted Antimony Mineralization, Lyhamyar Sb Deposit, Southern Shan Plateau, Eastern Myanmar: Implications for Ore Genesis

Zaw

et al. 2020

Minerals

View full text Add to dashboard Cite

The Lyhamyar deposit is a large Sb deposit in the Southern Shan Plateau, Eastern Myanmar. The deposit is located in the Early Silurian Linwe Formation, occurring as syntectonic quartz-stibnite veins. The ore body forms an irregular staircase shape, probably related to steep faulting. Based on the mineral assemblages and cross-cutting relationships, the deposit shows two mineralization stages: (1) the pre-ore sedimentary and diagenetic stage, and (2) the main-ore hydrothermal ore-forming stage (including stages I, II, and III), i.e., (i) early-ore stage (stage I) Quartz-Stibnite, (ii) late-ore stage (stage II) Quartz-calcite-Stibnite ± Pyrite, and (iii) post-ore stage (stage III) carbonate. The ore-forming fluid homogenization temperatures from the study of primary fluid inclusions in quartz and calcite indicate that the ore-forming fluid was of a low temperature (143.8–260.4 °C) and moderate to high-salinity (2.9–20.9 wt. % NaCl equivalent). Hydrogen and oxygen isotopes suggest that the ore-forming fluids of the Lyhamyar deposit were derived from circulating meteoric water mixed with magmatic fluids that underwent isotopic exchange with the surrounding rocks. Sulfur in Lyhamyar was dominated by thermochemical sulfate reduction (TSR) with dominant magmatic source sulfur. The lead isotope compositions of the stibnite indicate that the lead from the ore-forming metals was from the upper crustal lead reservoir and orogenic lead reservoir. On the basis of the integrated geological setting, ore geology, fluid inclusions, (H-O-S-Pb) isotope data, and previous literature, we propose a new ore-deposit model for the Lyhamyar Sb deposit: It was involved in an early deposition of pyrite in sedimentary and diagenetic stages and later Sb mineralization by mixing of circulating meteoric water with ascending magmatic fluids during the hydrothermal mineralization stage.

show abstract

Section: Stable and Radiogenic Isotopesmentioning

confidence: 99%

Section: Stable and Radiogenic Isotopesmentioning

confidence: 99%

“…The Pb isotopic values of stibnite divides of the Lyhamyar deposit are listed in Table 4 and plotted in Figure 13 [72,76]. The Pb isotopic ratio clusters into two groups (A and B).…”

Section: Pb Isotopesmentioning

confidence: 99%

Section: Pb Isotopesmentioning

confidence: 99%

See 2 more Smart Citations

Ore Geology, Fluid Inclusions, and (H-O-S-Pb) Isotope Geochemistry of the Sediment-Hosted Antimony Mineralization, Lyhamyar Sb Deposit, Southern Shan Plateau, Eastern Myanmar: Implications for Ore Genesis

Zaw

et al. 2020

Minerals

View full text Add to dashboard Cite

show abstract

“…The South China Block comprises by two major terranes: the Yangtze block in the northwest and the Cathaysia block in the southeast (Figure 1a) [45], amalgamated along the Jiangnan Orogen during the Neoproterozoic [46][47][48][49][50][51].…”

Section: Regional Geologymentioning

confidence: 99%

Metal Sources of World-Class Polymetallic W–Sn Skarns in the Nanling Range, South China: Granites versus Sedimentary Rocks?

Jiang

Evans

et al. 2018

Minerals

Self Cite

View full text Add to dashboard Cite

Widespread, large-scale polymetallic W-Sn mineralization occurs throughout the Nanling Range (South China) dated 160-150 Ma, and related to widely developed coeval granitic magmatism. Although intense research has been carried out on these deposits, the relative contribution of ore-forming elements either from granites or from surrounding strata is still debated. In addition, the factors controlling the primary metallogenic element in any given skarn deposit (e.g., W-dominated or Sn-dominated) are still unclear. Here, we select three of the most significant skarn-deposits (i.e., Huangshaping W-Mo-Sn, Shizhuyuan W-Sn-Mo-Bi and Xianghualing Sn), and compare their whole-rock geochemistry with the composition of associated granites and strata. The contents of Si, Al and most trace elements in skarns are controlled by the parent granite, whereas their Fe, Ca, Mg, Mn, Ti, Sr and REE patterns are strongly influenced by the wall rock. Samples from the Huangshaping skarn vary substantially in elemental composition, probably indicating their varied protoliths. Strata at the Shizhuyuan deposit exerted a strong control during metasomatism, whereas this occurred to a lesser degree at Huangshaping and Xianghualing. This correlates with increasing magma differentiation and increasing reduction state of granitic magmas, which along with the degree of stratigraphic fluid circulation, exert the primary control on dominant metallogenic species. We propose that wall rock sediments played an important role in the formation of W-Sn polymetallic mineralization in South China.

show abstract

Zircon (U-Th)/He thermochronometric constraints on the mineralization of the giant Xikuangshan Sb deposit in central Hunan, South China

Batt

et al. 2019

Miner Deposita

View full text Add to dashboard Cite

Geochemistry and geochronology of the Banxi Sb deposit: Implications for fluid origin and the evolution of Sb mineralization in central-western Hunan, South China

Cited by 68 publications

References 112 publications

Ore Geology, Fluid Inclusions, and (H-O-S-Pb) Isotope Geochemistry of the Sediment-Hosted Antimony Mineralization, Lyhamyar Sb Deposit, Southern Shan Plateau, Eastern Myanmar: Implications for Ore Genesis

Ore Geology, Fluid Inclusions, and (H-O-S-Pb) Isotope Geochemistry of the Sediment-Hosted Antimony Mineralization, Lyhamyar Sb Deposit, Southern Shan Plateau, Eastern Myanmar: Implications for Ore Genesis

Metal Sources of World-Class Polymetallic W–Sn Skarns in the Nanling Range, South China: Granites versus Sedimentary Rocks?

Zircon (U-Th)/He thermochronometric constraints on the mineralization of the giant Xikuangshan Sb deposit in central Hunan, South China

Contact Info

Product

Resources

About