Pyhäsalmi
Northern Ostrobothnia, Pyhäjärvi, Finland
Volcanogenic massive sulfidesZn-Cu
- Type
- Metamorphosed volcanogenic massive sulfides
Zn-Cu deposit of Middle Proterozoic age in a dominantly metavolcanic terrane, metamorphosed to amphibolite facies. Palmer and Slack (1989, Table 2): tourmaline at -9.75 and -12.32 ‰. Tourmalines of this kind of terrane range from -15.71 to -1.49 ‰ in the article; according to the authors, the boron source (continental crust, entrained seawater, evaporites) matters more than the formation temperature. Indicative coordinates, not published in the article.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −11.04 ± 1.82 ‰ | −12.32 / −9.75 ‰ | 2 | tourmaline of the massive sulfide or associated tourmalinite Mean and standard deviation recalculated from 2 analyses, -12.32 to -9.75 (JS-82F-15A -9.75; JS-82F-16D -12.32). Uncertainties: JS-82F-15A -9.75 ± 0.39 ‰; JS-82F-16D -12.32 ± 0.25 ‰. | Palmer & Slack (1989), Boron isotopic composition of tourmaline from massive sulfide depo… |
Deposits of the same type
- Boliden Sweden
- Långdal Sweden
- Kristineberg Sweden
- Adak deposits (Abraham, Långreven, Lindsköld, Rudtjebäcken) Sweden
- Predoi Italy
- Valle Imperina Italy
- Val di Sella Italy
- Vetriolo Italy
Cite this page
IsoFind Atlas (2026). Pyhäsalmi, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/pyhasalmi/ (accessed 2026-10-19).
@misc{isofind2026pyhasalmiisotopesignatures,
title = {Pyhäsalmi, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/pyhasalmi/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19