Dichek
Sakha (Yakutia), Adycha-Taryn metallogenic zone, Russia
Epithermal depositsAg-Sb
- Type
- Epithermal silver-antimony in cryptocrystalline quartz veins
Silver-antimony occurrence of the Adycha-Taryn zone (Late Cretaceous, around the Taryn dacite subvolcano): sulfide-poor cryptocrystalline or fine-grained quartz veins with freibergite, silver sulfosalts, gudmundite and berthierite, often superimposed on gold or tin-tungsten deposits; arsenopyrite with 1.6-2.3 % Sb. Gamyanin et al. (2018): quartz from -3.2 to +4.7 ‰ (fluid from -13.6 to -7.3 ‰ at 220 °C), calcite from -11.6 to -11.1 ‰ in δ13C, stibnite from -5.7 to -5.6 ‰: dominant meteoric water. Primary NaCl fluid inclusions (3.6-0.8 wt% NaCl equiv.). Occurrence values: fine-grained quartz +1.8 and +2.4 and +2.9 ‰; calcite -11.6 ‰ in δ13C and +2.3 ‰ in δ18O; δ34S: arsenopyrite -1.9, pyrite -2.3, stibnite -5.6 ‰. Coordinates not published (schematic map only).
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.4 ± 0.6 ‰ | 1.8 / 2.9 ‰ | 3 | fine-grained quartz (silver sulfosalts assemblage, silver-antimony mineralisation) Mean and standard deviation recalculated from 3 analyses, +1.8 to +2.9 (+1.8; +2.4; +2.9). | Gamyanin et al. (2018), Noble-metal mineralization of the Adycha-Taryn metallogenic zone:… |
| 2.3 ‰ | 1 | vein calcite (silver-antimony mineralisation) Single analysis. Carbonate not named in Table 4, mineral inferred from the text (ankerite for gold, calcite for silver-antimony). | Gamyanin et al. (2018), Noble-metal mineralization of the Adycha-Taryn metallogenic zone:… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −11.6 ‰ | 1 | vein calcite (silver-antimony mineralisation) Single analysis. Carbonate not named in Table 4, mineral inferred from the text (ankerite for gold, calcite for silver-antimony). | Gamyanin et al. (2018), Noble-metal mineralization of the Adycha-Taryn metallogenic zone:… |
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.9 ‰ | 1 | productive-vein arsenopyrite (silver-antimony mineralisation) Single analysis. | Gamyanin et al. (2018), Noble-metal mineralization of the Adycha-Taryn metallogenic zone:… | |
| −2.3 ‰ | 1 | productive-vein pyrite (silver-antimony mineralisation) Single analysis. | Gamyanin et al. (2018), Noble-metal mineralization of the Adycha-Taryn metallogenic zone:… | |
| −5.6 ‰ | 1 | productive-vein stibnite (silver-antimony mineralisation) Single analysis. | Gamyanin et al. (2018), Noble-metal mineralization of the Adycha-Taryn metallogenic zone:… |
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Cite this page
IsoFind Atlas (2026). Dichek, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/dichek/ (accessed 2026-10-19).
@misc{isofind2026dichekisotopesignatures,
title = {Dichek, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/dichek/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19