Wanlongshan
Southeast Yunnan, Dulong ore field (Maguan, Wenshan), China
SkarnsZn-Sn (In)
- Type
- Stratiform to lenticular Zn-Sn (In) skarn in Cambrian siliceous carbonates
Stratiform to lenticular bodies in the second member of the Tianpeng Formation (Cambrian), controlled by interlayer faults, near the Tongjie-Manjiazhai deposit. Grossular garnet U-Pb dated at 88.1 ± 3.3 Ma (MSWD 0.98, n = 17), like the Laojunshan granite and the district molybdenites. Sphalerite with 8.3 to 15.2 % Fe (marmatite), rich in In (652 to 1010 ppm) and Mn, poor in Ga, Ge and Sn; magmatic sulphur (Bin et al., 2025). Coordinates not given.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.24 ± 0.17 ‰ | 2 / 2.5 ‰ | 7 | chalcopyrite Mean and standard deviation recalculated from 7 analyses, spots 52-1-Ccp-1 to 7. | Bin et al. (2025), Skarn geochronology and genesis of the Wanlongshan Zn-Sn polymetallic … |
| 2.38 ± 0.25 ‰ | 1.9 / 2.9 ‰ | 20 | sphalerite (marmatite) Mean and standard deviation recalculated from 20 analyses, samples 52-1, 52-2 and 2; the text states a 0.5 ‰ spread for a published range of 1.9 to 2.9 ‰. | Bin et al. (2025), Skarn geochronology and genesis of the Wanlongshan Zn-Sn polymetallic … |
| 1.55 ± 1.3 ‰ | 0 / 3.8 ‰ | 11 | pyrite Mean and standard deviation recalculated from 11 analyses, 2-1 from +2.0 to +3.8 ‰ and 2-2 from 0.0 to +0.9 ‰; the two highest values suggest a minor contribution of host-rock sulphur according to the authors. | Bin et al. (2025), Skarn geochronology and genesis of the Wanlongshan Zn-Sn polymetallic … |
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Cite this page
IsoFind Atlas (2026). Wanlongshan, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/wanlongshan/ (accessed 2026-10-15).
@misc{isofind2026wanlongshanisotopesignatures,
title = {Wanlongshan, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/wanlongshan/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15