Luziyuan

Western Yunnan, Zhenkang (Baoshan block), China

SkarnsZn-Pb-Fe (Cu)

Type
Distal Zn-Pb-Fe-(Cu) skarn

Distal skarn with rhodonite, actinolite and chlorite. Lithium in fluid inclusions shows a magmatic fluid at the prograde stage (rhodonite), made heavier at the retrograde stage by Rayleigh fractionation as hydrous minerals capture up to 70% of the lithium, phase separation during Zn-Pb deposition, then meteoric water input at late stages (light-yellow sphalerite, calcite). Indicative coordinates.

δ7Li in ‰ (per mil) Values of the same system

Standard : IRMM-016

ValueRangenMineral or matrixSource
6.69 ± 0.96 ‰5.37 / 7.91 ‰5rhodonite fluid inclusion leachates (prograde skarn)
Mean and standard deviation recalculated from 5 samples, Table 1. The abstract gives +5.37 to +7.31 ‰; the table reaches +7.91 ‰ (LZY-NO27), consistent with the published mean of +6.69 ‰.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
11.94 ± 0.46 ‰11.48 / 12.54 ‰4actinolite fluid inclusion leachates (retrograde skarn)
Mean and standard deviation recalculated from 4 samples, Table 1. The text states n = 5, but LZY-NO12 has no value; it also gives +11.69 ‰ as the minimum whereas LZY-NO24 is +11.48 ‰.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
11.18 ± 0.58 ‰10.44 / 11.66 ‰4black and reddish-brown sphalerite fluid inclusion leachates
Mean and standard deviation recalculated from 4 samples, Table 1.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
6.75 ‰1light-yellow sphalerite fluid inclusion leachates
One analysis (LZY-NO11), Table 1; external, probably meteoric, fluid input.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
11.17 ± 1.79 ‰9.78 / 13.19 ‰3galena fluid inclusion leachates
Mean and standard deviation recalculated from 3 samples, Table 1.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
5.17 ± 0.99 ‰3.95 / 6.49 ‰6calcite fluid inclusion leachates (late stage)
Mean and standard deviation recalculated from 6 samples, Table 1. The discussion quotes +3.47 ‰ as the lowest value, not found in the table.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
−5.97 ‰1rhodonite (mineral)
One analysis (LZY-NO27), Table 2; 1.04 µg/g Li.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
1.71 ‰1actinolite (mineral)
One analysis (LZY-NO30), Table 2; 11.10 µg/g Li.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
−3.7 ‰1sphalerite (mineral)
One analysis (LZY-NO6), Table 2; 3.76 µg/g Li.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
−4.7 ‰1calcite (mineral)
One analysis (LZY-NO3), Table 2; 2.41 µg/g Li.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
−3.32 ‰1unmineralised host marble
One analysis (M1), Table 2; 0.17 µg/g Li (the text also gives 1.03 µg/g). The host rock cannot supply the heavy lithium of the fluids.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…

δ37Cl in ‰ (per mil) Values of the same system

Standard : ISL 354 (NaCl)

ValueRangenMineral or matrixSource
1.84 ± 0.01 ‰1.83 / 1.85 ‰2rhodonite fluid inclusion leachates
Mean of 2 samples, Table 1; positive values typical of magmatic fluids. The abstract gives +1.82 to +1.83 ‰.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…
0.49 ‰1actinolite fluid inclusion leachates
One analysis (LZY-NO30), Table 1; lower, decreased by crystallisation of Cl-bearing hydrous minerals.
Xu et al. (2021), Lithium and chlorine isotopic constraints on fluid sources and evolutio…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Luziyuan, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/luziyuan/ (accessed 2026-10-07).

@misc{isofind2026luziyuanisotopesignatures,
  title = {Luziyuan, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/luziyuan/},
  note = {Accessed 2026-10-07}
}

Updated : 2026-10-07