Grängesberg and Blötberget
Bergslagen (Dalarna), Sweden
IOCGFe (P)
- Type
- Apatite-iron oxide (Kiruna type)
A Kiruna-type apatite-iron oxide deposit. Iron and oxygen isotopes of magnetite, within the range of magmatic rocks, point to a magmatic origin of these ores. One Grängesberg sample reaches +1.0 ‰ in δ56Fe.
δ56Fe in ‰ (per mil) Values of the same system
Standard : IRMM-014
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.11 / 0.4 ‰ | 16 | magnetite Range given in the text (detailed data in the supplement). | Troll et al. (2019), Global Fe-O isotope correlation reveals magmatic origin of Kiruna-ty… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.1 / 2.8 ‰ | 16 | magnetite Range given in the text. | Troll et al. (2019), Global Fe-O isotope correlation reveals magmatic origin of Kiruna-ty… |
Deposits of the same type
- Kiirunavaara (Kiruna) Sweden
- Bafq district Iran
- Khetri Copper Belt, Madan Kudan and Kolihan India
- Khetri Copper Belt, Chandmari India
- Singhbhum Copper Belt India
- El Laco Chile
- Olympic Dam Australia
- Olympic Dam Australia
Cite this page
IsoFind Atlas (2026). Grängesberg and Blötberget, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/grangesberg-et-blotberget/ (accessed 2026-10-06).
@misc{isofind2026grangesbergandblotbergetisoto,
title = {Grängesberg and Blötberget, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/grangesberg-et-blotberget/},
note = {Accessed 2026-10-06}
}Updated : 2026-10-06