Welkenraedt
Eastern Belgium (Liège-Verviers Zn-Pb district), Belgique
Mississippi Valley TypeZn-Pb
- Type
- Oxidised MVT with non-sulfide ore (calamine)
Mineralisation controlled by the NW-SE Welkenraedt fault, calamine rich in lead carbonates down to 50 m, below 10 m of Aachen Formation sediments. Deposit of the eastern Belgian Zn-Pb district, with sulfides and calamine (zinc carbonates and silicates); supergene smithsonite and cerussite formed below 70 °C from meteoric waters. Indicative coordinates.
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 28.18 ± 0.94 ‰ | 27.1 / 29.5 ‰ | 6 | supergene smithsonite Mean and standard deviation recalculated from 6 samples, Table 4. | Coppola et al. (2008), The calamine nonsulfide Zn-Pb deposits of Belgium: petrographical,… |
| 19.3 ‰ | 1 | supergene cerussite One analysis, Table 4. | Coppola et al. (2008), The calamine nonsulfide Zn-Pb deposits of Belgium: petrographical,… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −7.98 ± 2.61 ‰ | −10.2 / −3.2 ‰ | 6 | supergene smithsonite Mean and standard deviation recalculated from 6 samples, Table 4. | Coppola et al. (2008), The calamine nonsulfide Zn-Pb deposits of Belgium: petrographical,… |
| −18.4 ‰ | 1 | supergene cerussite One analysis, Table 4. | Coppola et al. (2008), The calamine nonsulfide Zn-Pb deposits of Belgium: petrographical,… |
Deposits of the same type
- La Calamine and Moresnet district (Vieille-Montagne) Belgique
- Theux Belgique
- Angleur Belgique
- Le Bleymard France
- Saint-Félix-de-Pallières France
- Durfort France
- Trèves France
- La Gardie France
Cite this page
IsoFind Atlas (2026). Welkenraedt, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/welkenraedt/ (accessed 2026-10-13).
@misc{isofind2026welkenraedtisotopesignatures,
title = {Welkenraedt, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/welkenraedt/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13