Teremkyn
Transbaikalia, Darasun gold district, Russia
Other hydrothermalAu
- Type
- Gold-sulphide-tourmaline-quartz veins
Darasun district: gold veins controlled by fractures related to the collision of the Siberian and Sino-Korean continents, associated with Jurassic to Cretaceous intrusions of the Amudzhikan-Sretensky Complex, without later metamorphic overprint; host Palaeozoic metagabbros (Kruchininsky Complex) and granitoids. Veins 30 to 1500 m long in propylitized metagabbros, near a granodiorite porphyry; average 25 g/t Au. Baksheev et al. (2015): tourmaline from -15.7 to +2.5 ‰, initial fluid near -12 ‰ (granitic), made heavier by Rayleigh fractionation.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −15.7 / −9.3 ‰ | 6 | vein tourmaline, generation I, core, sample 878t Published range and standard deviation (2.5 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −7.3 / −3.2 ‰ | 3 | vein tourmaline, generation I, rim, sample 878t Published range and standard deviation (2.1 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −9.3 / −7.5 ‰ | 3 | vein tourmaline, generation II (overgrowths), sample 878t Published range and standard deviation (0.9 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −5.7 ‰ | 1 | vein tourmaline, generation III (cement), sample 878t Single analysis. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| 0.2 / 2.5 ‰ | 2 | vein tourmaline, sheaf-shaped generation IV, intermediate part, sample 878t Published range and standard deviation (1.6 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −2.6 / −1.6 ‰ | 4 | vein tourmaline, sheaf-shaped generation IV, tip, sample 878t Published range and standard deviation (0.5 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Teremkyn, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/teremkyn/ (accessed 2026-10-20).
@misc{isofind2026teremkynisotopesignatures,
title = {Teremkyn, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/teremkyn/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20