Nizhny Tagil (platinum placers)
Middle Urals, Russia
OtherPt (EGP)
- Type
- Pt-Fe alloy placers derived from zoned dunite-clinopyroxenite massifs
Historic Urals platinum placers. Junk and Pernicka (2003): twenty Pt-Fe nuggets from the TU Bergakademie Freiberg collection (inv. 38331), 187Os/188Os from 0.12039 to 0.12681, spread and mean close to the Celtic coin inclusions but with a different distribution; judged a very unlikely source of Celtic gold.
187Os/188Os isotope ratio, no unit Values of the same system
Standard : Rapport absolu, sans standard de référence
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.12276 ± 0.00156 | 0.12039 / 0.12681 | 20 | Pt-Fe alloys (placer nuggets) Mean and standard deviation recalculated from 20 analyses, 0.12039 to 0.12681 (1.1 0.12163; 1.2 0.12285; 1.3 0.12272; 1.4 0.12231; 1.5 0.12039; 1.6 0.12360; 1.7 0.12260; 1.8 0.12464; 1.9 0.12260; 1.10 0.12385; 1.11 0.12240; 1.12 0.12112; 1.13 0.12162; 1.14 0.12152; 1.15 0.12319; 1.16 0.12559; 1.17 0.12128; 1.18 0.12681; 1.19 0.12282; 1.20 0.12157). Grains 1.1 to 1.20 of sample F20000703/1. Grains 1.9 and 1.17 have high 186Os/188Os (0.1234 and 0.12147 against 0.1194 to 0.1204 elsewhere), a sign of 186Os from 190Pt in these Pt-rich alloys. | Junk & Pernicka (2003), An assessment of osmium isotope ratios as a new tool to determine… |
Deposits of the same type
- Central African Copperbelt (whole province) DR Congo and Zambia
- Witwatersrand basin South Africa
- Stelvio Italy
- Oris Italy
- Kupferschiefer, Lubin-Sieroszowice district Poland
- Timna Israël
- Datangpo-type manganese (Gaolou, Minle, Zhenxing) China
- Eyller Bruch bog iron ore Germany
Cite this page
IsoFind Atlas (2026). Nizhny Tagil (platinum placers), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/nijni-taguil-placers-a-platine/ (accessed 2026-10-20).
@misc{isofind2026nizhnytagilplatinumplacersiso,
title = {Nizhny Tagil (platinum placers), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/nijni-taguil-placers-a-platine/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20