Xiaoyao
Jixi County, Xuancheng, southern Anhui (Jiangnan tungsten belt), China
SkarnsW-Mo (Cu, Pb-Zn-Ag)
- Type
- Zoned W-Mo skarn, with intermediate Cu and distal Pb-Zn-Ag veins
Zonation from the granodiorite contact (149 Ma): proximal W-Mo skarns, Cu skarns, then Pb-Zn-Ag in marbles; resources of 75,000 t W at 0.2 %, 10,000 t Mo, 6,700 t Cu, 10,000 t Pb-Zn and 90 t Ag. All belong to a single magmatic-hydrothermal system; δ34S increases outwards through sedimentary sulfur input. Coordinates estimated within Jixi County. Indicative coordinates.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.2 ± 0.4 ‰ | 1.8 / 2.8 ‰ | 4 | molybdenite of proximal W-Mo skarns Mean and standard deviation recalculated from 4 samples, Table 5. Magmatic sulfur. | Su et al. (2026), The genesis of the Xiaoyao polymetallic tungsten deposit in the Jiangna… |
| 8.7 ± 1.5 ‰ | 6.8 / 10.6 ‰ | 7 | chalcopyrite and pyrrhotite of Cu skarns Mean and standard deviation recalculated from 7 samples, Table 5. Skarn stage 6.8 to 8.5 ‰, quartz-sulfide stage 9.9 to 10.6 ‰. The text cites other sample numbers and 9.9 to 10.1 ‰ for the second stage: the table adds 15XY-190 at 10.6 ‰. | Su et al. (2026), The genesis of the Xiaoyao polymetallic tungsten deposit in the Jiangna… |
| 8.3 ± 3.3 ‰ | 6.3 / 12.1 ‰ | 3 | sphalerite of distal Pb-Zn-Ag ores Mean and standard deviation recalculated from 3 samples, Table 5. 6.3 to 6.5 ‰ at 500 m from the Kaobeijian intrusion, 12.1 ‰ at 1000 m: sedimentary sulfur increasing with distance. | Su et al. (2026), The genesis of the Xiaoyao polymetallic tungsten deposit in the Jiangna… |
| 5.7 ‰ | 1 | galena of distal Pb-Zn-Ag ores One analysis, Table 5. | Su et al. (2026), The genesis of the Xiaoyao polymetallic tungsten deposit in the Jiangna… |
Deposits of the same type
- Xiaotongguanshan China
- Shizhuyuan China
- Xianghualing China
- Han-Xing China
- Lame (Lamo, Dachang ore field) China
- Kano Japan
- Haobugao China
- Fujigatani Japan
Cite this page
IsoFind Atlas (2026). Xiaoyao, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/xiaoyao/ (accessed 2026-10-13).
@misc{isofind2026xiaoyaoisotopesignatures,
title = {Xiaoyao, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/xiaoyao/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13