Boliden
Skellefte district (Västerbotten, north), Sweden
Volcanogenic massive sulfidesAu-Cu-As-Ag
- Type
- Gold-rich volcanogenic massive sulfide
A Palaeoproterozoic deposit (about 1.89 Ga) of 8.3 Mt of ore at 1.5% Cu, 0.9% Zn, 0.3% Pb and 15.5 g/t Au, hosted in the Skellefte volcanic sequence. It was the richest gold mine in Europe in its time, until it closed in 1967. A magmatic contribution is likely (Au-As-Sb-Ag-Hg, Bi-W-Te-In-Sn).
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2 / 3 ‰ | arsenopyrite (massive ore and late veins) Both ore types have the same sulfur composition (about +2 to +3 ‰), close to most other volcanogenic massive sulfides of the Skellefte district. The sulfur signature survived medium-grade metamorphism. | Wagner et Boyce 2004, Laser microprobe sulphur isotope analysis of arsenopyrite, Boliden … |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 10.7 / 13.5 ‰ | peripheral Zn-Pb-Sb-Au mineralisation (sedimentary exhalative) High δ18O values acquired during diagenesis and preserved through metamorphism. They point to a distal, syn-volcanic exhalative mineralisation that predates metamorphism. | Origin of Zn-Pb-Sb-Au mineralization adjacent to the Boliden VMS, Mineralium Deposita 2017 |
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- Vetriolo Italy
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Cite this page
IsoFind Atlas (2026). Boliden, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/boliden/ (accessed 2026-10-06).
@misc{isofind2026bolidenisotopesignatures,
title = {Boliden, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/boliden/},
note = {Accessed 2026-10-06}
}Updated : 2026-10-06