Hongshan-Hongniu

Yunnan, China

SkarnsCu

Type
Skarn associated with a quartz-monzonite porphyry

Skarn related to a quartz-monzonite porphyry. The copper isotope study covers 22 chalcopyrite samples and 7 porphyries.

δ65Cu in ‰ (per mil) Values of the same system

Standard : NIST SRM 976

ValueRangenMineral or matrixSource
0.02 / 0.77 ‰22chalcopyrite (skarn)Copper isotopes trace the evolution of skarn ores: Hongshan-Hongniu, Yunnan (2017)
0.15 / 0.38 ‰7quartz-monzonite porphyry (host rock)Copper isotopes trace the evolution of skarn ores: Hongshan-Hongniu, Yunnan (2017)
0.32 ± 0.23 ‰0.02 / 0.66 ‰7skarn chalcopyrite
Mean and standard deviation of 7 samples from Table 2. Copper becomes heavier from the skarn towards the hornfels, away from the intrusion.
Wang et al. (2017), Copper isotopes trace the evolution of skarn ores: A case study from …
0.36 ± 0.13 ‰0.22 / 0.58 ‰6chalcopyrite of sulfide-rich ores
Mean and standard deviation of 6 samples from Table 2. Copper becomes heavier from the skarn towards the hornfels, away from the intrusion.
Wang et al. (2017), Copper isotopes trace the evolution of skarn ores: A case study from …
0.47 ± 0.24 ‰0.12 / 0.77 ‰8hornfels chalcopyrite
Mean and standard deviation of 8 samples from Table 2. Copper becomes heavier from the skarn towards the hornfels, away from the intrusion.
Wang et al. (2017), Copper isotopes trace the evolution of skarn ores: A case study from …

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Hongshan-Hongniu, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/hongshan-hongniu/ (accessed 2026-10-06).

@misc{isofind2026hongshanhongniuisotopesignatu,
  title = {Hongshan-Hongniu, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/hongshan-hongniu/},
  note = {Accessed 2026-10-06}
}

Updated : 2026-10-06