Darasun
Transbaikalia, Darasun gold district, Russia
Other hydrothermalAu
- Type
- Gold veins and breccia pipes related to granodiorite porphyry
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. 5 km southeast of Teremkyn: over 200 veins (average 15.4 g/t Au) and breccia pipes at the margin of a K-rich granodiorite porphyry. Baksheev et al. (2015): breccia from -6 to -5 ‰, veins from -11.4 to +11.2 ‰, strongly fractionated residual granitic fluid.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −6 / −5 ‰ | 5 | isolated and sheaf-shaped tourmaline of the breccia pipe, sample 1165 Published range and standard deviation (0.4 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −0.9 / 1.5 ‰ | 14 | vein tourmaline, generation I, sample 1185dr/86 Published range and standard deviation (0.8 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −4.4 / −1.1 ‰ | 6 | vein tourmaline, generation II, sample 1185dr/86 Published range and standard deviation (1.3 ‰), no mean. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| −11.4 ‰ | 1 | vein tourmaline, generation III, sample 1185dr/86 Single analysis. The abstract gives -11.2 ‰. | Baksheev et al. (2015), Geochemical evolution of tourmaline in the Darasun gold district,… | |
| 3.8 / 11.2 ‰ | 2 | vein tourmaline, intermediate and final products of Rayleigh fractionation, sample 1185dr/86 Published range and standard deviation (5.2 ‰), 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). Darasun, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/darasun/ (accessed 2026-10-20).
@misc{isofind2026darasunisotopesignatures,
title = {Darasun, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/darasun/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20