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Woxi

Yuanling County, Huaihua, western Hunan, China

Other hydrothermalW-Sb-Au

Type
Stratiform W-Sb-Au in siliceous beds (Woxi type)

Stratiform tungsten deposit in weakly metamorphosed siliceous beds. According to Zhang (1988), very heavy quartz and wolframite (or scheelite) of metamorphic origin. Precambrian W-Sb-Au formed according to Zhang (1988) by submarine hot springs along a basement fault, then recrystallised. Zhai et al. (2026) describe it as an Sb-Au-W deposit (247,472 t Sb) hosted in Neoproterozoic slates and sandstones, mineralised in the Late Jurassic-Early Cretaceous, with mercury mixing basement and recycled mantle sources. Estimated coordinates. Indicative coordinates.

δ18O in ‰ (per mil) Values of the same system

Standard : V-SMOW

ValueRangenMineral or matrixSource
17.22 ± 0.86 ‰11quartz of metamorphosed tungsten-bearing siliceous beds
Published mean and standard deviation from 11 samples, Table 1; individual values not given. Formation temperature adopted 240 ± 30 °C.
Zhang (1988), Oxygen isotope studies of wolframite in tungsten ore deposits of south Chin…
3.2 ‰1metamorphic wolframite or scheelite
One analysis, Table 1. The text gives about +3.3 ‰.
Zhang (1988), Oxygen isotope studies of wolframite in tungsten ore deposits of south Chin…

δ123Sb in ‰ (per mil) Values of the same system

Standard : NIST SRM 3102a

ValueRangenMineral or matrixSource
0.12 ± 0.2 ‰−0.06 / 0.33 ‰3stibnite
Mean and standard deviation recalculated from 3 samples, Table S2.
Zhai et al. (2026), Coupled Sb-Hg isotopes reveal mixed basement and deeply recycled mant…

δ202Hg in ‰ (per mil) Values of the same system

Standard : NIST SRM 3133

ValueRangenMineral or matrixSource
0.14 ± 0.51 ‰−0.47 / 0.56 ‰4stibnite
Mean and standard deviation recalculated from 4 samples, Table S2. Total Hg 0.47 to 1.64 ppm.
Zhai et al. (2026), Coupled Sb-Hg isotopes reveal mixed basement and deeply recycled mant…

Δ199Hg in ‰ (per mil) Values of the same system

Standard : NIST SRM 3133

ValueRangenMineral or matrixSource
−0.03 ± 0.09 ‰−0.12 / 0.08 ‰4stibnite
Mean and standard deviation recalculated from 4 samples, Table S2. Share of deep recycled reservoir highly variable between samples (9 to 45 %, Table S3).
Zhai et al. (2026), Coupled Sb-Hg isotopes reveal mixed basement and deeply recycled mant…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Woxi, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/woxi/ (accessed 2026-10-13).

@misc{isofind2026woxiisotopesignatures,
  title = {Woxi, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/woxi/},
  note = {Accessed 2026-10-13}
}

Updated : 2026-10-13