Polyarnik (Adycha)
Sakha (Yakutia), Adychanskii ore region (Adycha-Taryn zone), Russia
Orogenic goldAu
- Type
- Vein and impregnation gold in sedimentary rocks
Adychanskii gold region, in the northern Verkhoyansk-Kolyma gold province: Upper Triassic argillites and siltstones sliced by thrusts, Early Cretaceous S-type granitoids; Delyuvial'noe, Lazovskoe and Sentachan ore fields. Aristov et al. (2017): two fluids of similar temperature and salinity, generated by metagenesis and mobilised during collision (quartz-A at 290-340 °C and 1550 bar, near 6 km; quartz-B, -AB and -C at 250-380 °C and 350-1250 bar, from 3.5 to 1.5 km). Gold occurrence of the Delyuvial'noe field. Galena PL-9: δ34S -5.9 ‰, the lightest of the study, 206Pb/204Pb 18.357, model age 70 Ma; fluid H2S estimated at -3.0 ‰ at 200 °C. Coordinates not published (schematic map only, frame 136°40'-137°20' E, 66°20'-66°40' N).
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −5.9 ‰ | 1 | galena Single analysis (PL-9). Fluid H2S estimated at -3.0 ‰ at 200 °C (isotope thermometry and inclusions). | Aristov et al. (2017), Sources of fluids and material for gold and antimony mineralizatio… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : Non précisé dans la publication
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.357 | 1 | galena Single analysis (PL-9). Model age of 70 Ma (model U/Pb and Th/U in Table 1). The points plot on a secondary isochron of slope 0.158 (lead source near 2380-2350 Ma). | Aristov et al. (2017), Sources of fluids and material for gold and antimony mineralizatio… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : Non précisé dans la publication
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.539 | 1 | galena Single analysis (PL-9). Model age of 70 Ma (model U/Pb and Th/U in Table 1). The points plot on a secondary isochron of slope 0.158 (lead source near 2380-2350 Ma). | Aristov et al. (2017), Sources of fluids and material for gold and antimony mineralizatio… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : Non précisé dans la publication
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.355 | 1 | galena Single analysis (PL-9). Model age of 70 Ma (model U/Pb and Th/U in Table 1). The points plot on a secondary isochron of slope 0.158 (lead source near 2380-2350 Ma). | Aristov et al. (2017), Sources of fluids and material for gold and antimony mineralizatio… |
Deposits of the same type
- Muruntau Uzbekistan
- Kalgoorlie (Golden Mile) Australia
- Victorian Goldfields Australia
- Ashanti (Obuasi) Ghana
- Loulo (district de Gara-Yalea) Mali
- Gounkoto Mali
- Massawa Senegal
- Kirkland Lake (Macassa mine) Canada
Cite this page
IsoFind Atlas (2026). Polyarnik (Adycha), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/polyarnik-adycha/ (accessed 2026-10-19).
@misc{isofind2026polyarnikadychaisotopesignatu,
title = {Polyarnik (Adycha), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/polyarnik-adycha/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19