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Buzhu

Southern Tibet, Kangma County, Tethyan Himalaya Au-Sb belt (east of the Kangma dome), China

Orogenic goldAu (Sb)

Type
Orogenic gold (antimony) in sulfide-bearing quartz veins

Medium gold deposit (13 to 15 t at 3.33 g/t) in slates, sandstones and limestones of the Jurassic Ridang Formation, at the junction of the east-west detachment system and north-south normal faults. Auriferous arsenopyrite and pyrite, stibnite precipitated in fractures of Py1a pyrite. Xu et al. (2024): framboidal Py0 pyrite from -12.0 to +4.6 ‰ (biogenic sulfur), hydrothermal Py1 to Py3 pyrites from -0.8 to +7.5 ‰ (sulfur from metamorphosed sediments), calculated H2S from -2.0 to +6.2 ‰; antimony inherited from Py0 (206 to 440 ppm Sb). Coordinates not published.

δ34S in ‰ (per mil) Values of the same system

Standard : V-CDT

ValueRangenMineral or matrixSource
−3 ± 5.89 ‰−12 / 4.57 ‰6framboidal pyrite Py0 (sedimentary)
Mean and standard deviation recalculated from 6 analyses, -12.00 to +4.57 (BZ053-1 -3.64; BZ053-2 -5.30; BZ053-3 +2.34; BZ053-4 +4.57; BZ053-5 -3.96; BZ053-6 -12.00); BZ053-3 with a 2 SE of 1.53 ‰.
Xu et al. (2024), In-situ trace element and sulfur isotope compositions of Multi-Stage su…
2.67 ± 3.56 ‰−0.79 / 6.13 ‰4dissolution-cavity pyrite Py1a (gold-antimony stage)
Mean and standard deviation recalculated from 4 analyses, -0.79 to +6.13 (BZ053-7 +5.33; BZ053-8 +6.13; BZ046-1 -0.79; BZ046-2 +0.03).
Xu et al. (2024), In-situ trace element and sulfur isotope compositions of Multi-Stage su…
4.72 ± 1.7 ‰3.52 / 5.92 ‰2disseminated pyrite Py1b
Mean and standard deviation recalculated from 2 analyses, +3.52 to +5.92 (BZ049-1-1 +5.92; BZ049-1-2 +3.52); the text gives a mean of 3.74 ‰, inconsistent with the two table values.
Xu et al. (2024), In-situ trace element and sulfur isotope compositions of Multi-Stage su…
4.63 ± 0.91 ‰3.76 / 5.58 ‰4euhedral pyrite Py2a of sulfide-quartz veins
Mean and standard deviation recalculated from 4 analyses, +3.76 to +5.58 (BZ049-1 +3.95; BZ049-2 +3.76; BZ049-3-1 +5.58; BZ049-3-2 +5.22).
Xu et al. (2024), In-situ trace element and sulfur isotope compositions of Multi-Stage su…
3.66 ± 0.22 ‰3.4 / 3.89 ‰4irregular pyrite Py2b (with arsenopyrite Apy2, gold stage)
Mean and standard deviation recalculated from 4 analyses, +3.40 to +3.89 (BZ049-3 +3.89; BZ049-4 +3.58; BZ049-3-3 +3.40; BZ049-3-4 +3.77).
Xu et al. (2024), In-situ trace element and sulfur isotope compositions of Multi-Stage su…
4.89 ± 2.77 ‰1.99 / 7.51 ‰3late pyrite Py3
Mean and standard deviation recalculated from 3 analyses, +1.99 to +7.51 (B7040-1 +5.18; B7040-2 +1.99; B7040-3 +7.51).
Xu et al. (2024), In-situ trace element and sulfur isotope compositions of Multi-Stage su…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Buzhu, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/buzhu/ (accessed 2026-10-16).

@misc{isofind2026buzhuisotopesignatures,
  title = {Buzhu, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/buzhu/},
  note = {Accessed 2026-10-16}
}

Updated : 2026-10-16