Kola apatite
Kola Peninsula, Russia
Magmatic (Ni-Cu-PGE, carbonatites)P
- Type
- Magmatic phosphate (apatite of an alkaline or carbonatite complex)
Phosphate rocks studied by Hill et al. (2024) to reconstruct redox conditions and diagenesis: U, Sr and rare earths carried by carbonate fluorapatite; samples taken at mines or from the Julius Kühn Institute archives. Magmatic phosphate very rich in Sr (18,000 to 21,000 mg/kg) and poor in U, with poorly radiogenic Sr and mantle oxygen; RU-A carries in Table S2 the δ238U and δ234U of IL-1 to the last digit, values discarded as a probable copying error. Coordinates not given.
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.703332 ± 0.000008 | 0.703327 / 0.703341 | 3 | magmatic phosphate (bulk) Mean and standard deviation recalculated from 3 analyses, samples RU-A, RU-B, RU-C. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
δ238U in ‰ (per mil) Values of the same system
Standard : NBL CRM 112-A
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.185 ± 0.087 ‰ | 1 | magmatic apatite (leached fraction) Single analysis; sample RU-B; RU-A discarded (values identical to IL-1). | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
δ234U in ‰ (per mil) Values of the same system
Standard : équilibre séculaire
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.15 ± 23.6 ‰ | 1 | magmatic apatite (leached fraction) Single analysis; sample RU-B; a departure from 0 signals uranium mobility within the last two million years; RU-A discarded (values identical to IL-1). | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 5.27 ± 0.14 ‰ | 5.19 / 5.43 ‰ | 3 | magmatic apatite (PO4 oxygen) Mean and standard deviation recalculated from 3 analyses, samples RU-A, RU-B, RU-C. | Hill et al. (2024), Reconstructing the depositional environment and diagenetic modificati… |
Deposits of the same type
- Bayan Obo China
- Norilsk-Talnakh Russia
- Bushveld, Merensky Reef South Africa
- Bushveld, UG2 chromitite South Africa
- Bushveld, Platreef South Africa
- Sudbury Canada
- Voisey's Bay Canada
- Rössing Namibia
Cite this page
IsoFind Atlas (2026). Kola apatite, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/apatite-de-kola/ (accessed 2026-10-15).
@misc{isofind2026kolaapatiteisotopesignatures,
title = {Kola apatite, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/apatite-de-kola/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15