Guoluolongwa
Gouli goldfield, Dulan County, Qinghai (East Kunlun), China
Orogenic goldAu
- Type
- Orogenic gold in quartz-sulfide veins
Largest deposit of the Gouli goldfield: lenticular quartz-sulfide veins in mylonites and phyllites of the Ordovician-Silurian Naij Tal Group, average grade 6.8 g/t. Zinc and cadmium in pyrite, carried by sphalerite inclusions, indicate mixing between a metamorphic source (heavy wall-rock pyrite) and a mantle magmatic fluid, whose share grows from stage I to stage III. Indicative coordinates: Gouli township seat, the deposit lying within about 25 km.
δ66Zn in ‰ (per mil) Values of the same system
Standard : JMC 3-0749L
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.49 ± 0.02 ‰ | 0.47 / 0.51 ‰ | 4 | pyrite of the host phyllite (stage 0, pre-ore) Mean and standard deviation recalculated from 4 samples, Table 1. Zinc carried by sphalerite inclusions. Metamorphic source end-member. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.36 ± 0.05 ‰ | 0.29 / 0.44 ‰ | 5 | pyrite of pyrite-quartz veins (stage I) Mean and standard deviation recalculated from 5 samples, Table 1. Zinc carried by sphalerite inclusions. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.25 ± 0.02 ‰ | 0.215 / 0.27 ‰ | 7 | pyrite of quartz-pyrite veins (stage II) Mean and standard deviation recalculated from 7 samples, Table 1. Zinc carried by sphalerite inclusions. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.23 ± 0.04 ‰ | 0.17 / 0.26 ‰ | 5 | pyrite of calcite-quartz-sulfide veins (stage III) Mean and standard deviation recalculated from 5 samples, Table 1. Zinc carried by sphalerite inclusions. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.23 ± 0.1 ‰ | 0.03 / 0.31 ‰ | 7 | sphalerite of calcite-quartz-sulfide veins (stage III) Mean and standard deviation recalculated from 7 samples, Table 1. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
δ114/110Cd in ‰ (per mil) Values of the same system
Standard : NIST SRM 3108
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.55 ± 0.02 ‰ | 0.53 / 0.57 ‰ | 4 | pyrite of the host phyllite (stage 0, pre-ore) Mean and standard deviation recalculated from 4 samples, Table 1. Metamorphic source end-member. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.35 ± 0.18 ‰ | 0.12 / 0.56 ‰ | 5 | pyrite of pyrite-quartz veins (stage I) Mean and standard deviation recalculated from 5 samples, Table 1. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.21 ± 0.06 ‰ | 0.12 / 0.29 ‰ | 7 | pyrite of quartz-pyrite veins (stage II) Mean and standard deviation recalculated from 7 samples, Table 1. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.17 ± 0.1 ‰ | 0.02 / 0.28 ‰ | 5 | pyrite of calcite-quartz-sulfide veins (stage III) Mean and standard deviation recalculated from 5 samples, Table 1. Replicates averaged before computation. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
| 0.17 ± 0.14 ‰ | 0.01 / 0.34 ‰ | 7 | sphalerite of calcite-quartz-sulfide veins (stage III) Mean and standard deviation recalculated from 7 samples, Table 1. | Li et al. (2025), Zinc and cadmium isotopes in pyrite constraint on metal sources in the … |
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Cite this page
IsoFind Atlas (2026). Guoluolongwa, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/guoluolongwa/ (accessed 2026-10-13).
@misc{isofind2026guoluolongwaisotopesignatures,
title = {Guoluolongwa, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/guoluolongwa/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13