Talvivaara
Kainuu, Sotkamo, Finland
SEDEXNi-Zn-Co-Cu
- Type
- Black-shale-hosted Ni-Zn-Co-Cu (Palaeoproterozoic)
World's largest black-shale-hosted Ni-Zn-Co-Cu deposit, over 2000 Mt of low-grade ore (cut-off 0.07 % Ni) in 2.1 to 1.9 Ga black shales with pyrite (up to 0.7 % Ni) and pyrrhotite, repeatedly deformed and metamorphosed; nickel source linked to ultramafic rocks according to Loukola-Ruskeeniemi and Lahtinen (2013). The two samples of Pašava et al. (2019), at 0.04 % Ni, do not represent the ore. Coordinates from Mindat.
δ60Ni in ‰ (per mil) Values of the same system
Standard : NIST SRM 986
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.14 ± 0.32 ‰ | −0.085 / 0.367 ‰ | 2 | sulphidic black shales (drill cores 3433:321 at 193.18 m and 3344:329 at 118.68 m) Mean and standard deviation recalculated from 2 analyses, brecciated shale with fine sulphides -0.085 ± 0.002 ‰ (8.6 % TOC) and Mn-rich shale +0.367 ± 0.088 ‰ (alabandite); drill-core descriptions swapped in Table 1 relative to the text; 0.04 % Ni, below ore grade. | Pašava et al. (2019), Nickel isotopic variation in black shales from Bohemia, China, Cana… |
Deposits of the same type
- Rammelsberg Germany
- Monte Naro Italy
- Les Abères (Rivernère valley) France
- Aulus-les-Bains district France
- Seix France
- Rajpura-Dariba India
- Langshan China
- Dongshengmiao China
Cite this page
IsoFind Atlas (2026). Talvivaara, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/talvivaara/ (accessed 2026-10-14).
@misc{isofind2026talvivaaraisotopesignatures,
title = {Talvivaara, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/talvivaara/},
note = {Accessed 2026-10-14}
}Updated : 2026-10-14