Yueyang (Bitian)
Fujian, Zijinshan ore field (Shanghang), China
Epithermal depositsAg, Au, Cu
- Type
- Low-sulfidation epithermal Ag-Au-Cu over a limited porphyry copper system
Deposit also called Bitian, 3 km south-west of the Zijinshan Cu-Au deposit, on the north-eastern rim of the Yueyang volcanic basin: 1330 t Ag at 137.6 g/t, 8.2 t Au and 0.04 Mt Cu (Zhang, 2013). Stratoid and lenticular bodies in the Jurassic Zijinshan granitic batholith, below the Cretaceous Shimaoshan Group volcanic rocks, controlled by NW listric faults; adularia dated at 91.5 to 94.7 Ma (40Ar/39Ar). Zhong et al. (2017): magmatic copper stage (inclusions at about 259 °C and vapours at 372-387 °C), meteoric-water-dominated silver stage with boiling. Indicative coordinates: read on Figure 1 of Zhong et al. (2017) from the labelled corner (116°28′25″ E, 25°13′23″ N) and the scale bar, to within about 1 km.
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 11.5 ± 0.5 ‰ | 11.1 / 11.8 ‰ | 2 | main copper stage quartz Mean and standard deviation recalculated from 2 analyses, +11.1 to +11.8 (Y-14 +11.8; Y-04a +11.1). Samples: Y-14 massive quartz-chalcopyrite-pyrite-sphalerite-galena ore; Y-04a massive quartz-chalcopyrite-pyrite ore. Water δ18O: Y-14 +2.7 ‰ at 247 °C; Y-04a +2.3 ‰ at 253 °C. | Zhong et al. (2017), Geology, fluid inclusion and stable isotope study of the Yueyang Ag-… |
| 8.3 ± 0.6 ‰ | 7.5 / 9.1 ‰ | 7 | main silver stage quartz Mean and standard deviation recalculated from 7 analyses, +7.5 to +9.1 (Y-03 +8.0; Y-06 +7.8; Y-08 +8.8; Y-13 +8.5; -100B +8.2; 130-3 +9.1; 160-11 +7.5). Samples: Y-03 (drusy) quartz-chalcopyrite-pyrite vein; Y-06 quartz-sphalerite-galena-chalcopyrite vein; Y-08 quartz-sphalerite-galena-pyrite vein; Y-13 quartz-sphalerite-galena-pyrite vein; -100B massive silicic Ag-bearing ore; 130-3 massive silicic Ag-bearing ore; 160-11 massive silicic Ag-bearing ore. Water δ18O: Y-03 -5.5 ‰ at 174 °C; Y-06 -3.8 ‰ at 201 °C; Y-08 -0.1 ‰ at 250 °C; Y-13 -0.4 ‰ at 250 °C; -100B -0.7 ‰ at 250 °C; 130-3 +0.2 ‰ at 250 °C; 160-11 -1.4 ‰ at 250 °C. | Zhong et al. (2017), Geology, fluid inclusion and stable isotope study of the Yueyang Ag-… |
| 9 ± 0.8 ‰ | 8.4 / 9.6 ‰ | 2 | late stage quartz Mean and standard deviation recalculated from 2 analyses, +8.4 to +9.6 (Y-04b +9.6; Y-15 +8.4). Samples: Y-04b barren quartz-calcite vein; Y-15 barren quartz vein. Water δ18O: Y-04b -3.2 ‰ at 184 °C; Y-15 -8.5 ‰ at 135 °C. | Zhong et al. (2017), Geology, fluid inclusion and stable isotope study of the Yueyang Ag-… |
δD in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −63 ± 1 ‰ | −64 / −62 ‰ | 2 | fluid-inclusion water in quartz, main copper stage Mean and standard deviation recalculated from 2 analyses, -64 to -62 (Y-14 -62; Y-04a -64). Close to the primary magmatic water field. | Zhong et al. (2017), Geology, fluid inclusion and stable isotope study of the Yueyang Ag-… |
| −73 ± 6 ‰ | −81 / −63 ‰ | 7 | fluid-inclusion water in quartz, main silver stage Mean and standard deviation recalculated from 7 analyses, -81 to -63 (Y-03 -75; Y-06 -63; Y-08 -77; Y-13 -75; -100B -67; 130-3 -74; 160-11 -81). Dominantly meteoric water. | Zhong et al. (2017), Geology, fluid inclusion and stable isotope study of the Yueyang Ag-… |
| −68 ± 5 ‰ | −71 / −64 ‰ | 2 | fluid-inclusion water in quartz, late stage Mean and standard deviation recalculated from 2 analyses, -71 to -64 (Y-04b -64; Y-15 -71). Close to Jurassic-Cretaceous meteoric water of south-west Fujian. | Zhong et al. (2017), Geology, fluid inclusion and stable isotope study of the Yueyang Ag-… |
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- Erentaolegai China
- Sarylakh Russia
- Sentachan Russia
- Tuvatu Fidji
- Golden Cross Nouvelle-Zélande
- Koru (Tahtalıkuyu et Eskikışla) Turkey
Cite this page
IsoFind Atlas (2026). Yueyang (Bitian), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/yueyang-bitian/ (accessed 2026-10-22).
@misc{isofind2026yueyangbitianisotopesignature,
title = {Yueyang (Bitian), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/yueyang-bitian/},
note = {Accessed 2026-10-22}
}Updated : 2026-10-22