Alexo
Abitibi greenstone belt, Ontario (Dundonald), Canada
Magmatic (Ni-Cu-PGE, carbonatites)Ni (Cu)
- Type
- Magmatic Ni sulphides at the base of komatiitic flows
Small nickel deposit in Archaean komatiites of the Abitibi. Pentlandite-rich massive ore: the lowest δ60Ni of the Gueguen et al. (2013) study, with negative Δ33S inherited from crustal sulphur processed through an oxygen-free atmosphere. Indicative coordinates.
δ60Ni in ‰ (per mil) Values of the same system
Standard : NIST SRM 986
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.02 ± 0.02 ‰ | −1.035 / −1.003 ‰ | 2 | massive sulphide ore Mean and standard deviation recalculated from 2 analyses, samples AX-1 and AX-2; δ56Fe -0.29 and -0.30 ‰, Δ33S -0.9 and -0.8 ‰ (Bekker et al., 2009). | Gueguen et al. (2013), Nickel isotope variations in terrestrial silicate rocks and geolog… |
Deposits of the same type
- Hart deposit (Abitibi) Canada
- Sudbury Canada
- Greenwood (pegmatites) United States
- Mount Mica United States
- Havey (pegmatite) United States
- Winslow (Maine) United States
- Carolina tin-spodumene belt United States
- Magnet Cove alkaline complex United States
Cite this page
IsoFind Atlas (2026). Alexo, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/alexo/ (accessed 2026-10-13).
@misc{isofind2026alexoisotopesignatures,
title = {Alexo, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/alexo/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13