Yangbajing geothermal field (Tibet)
Tibet (Xizang), China
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Geothermal waters of the Tibetan Plateau sampled by Zhang et al. (2015): high-B waters (36.8 to 171.9 mg/L, Na-Cl, mostly 85-87 °C) along the Indus-Yarlung Zangbo suture and the N-S rifts, magmatic boron supplied by degassing of a cooling magma; low-B waters (0.4 to 34.6 mg/L, Na-Ca-HCO3-SO4) of the Lhasa block, boron leached from host rocks by water-rock interaction. Coordinates not published (map only). Waters at 87 °C; YBJ-02 comes from an abandoned borehole (10.2 mg/L B, leaching of the host granite); reservoir up to 329 °C at 1850 m. δ11B of about -12.5 ‰ expected after phase separation of a magmatic fluid.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −11.64 ± 2.89 ‰ | −13.83 / −8.37 ‰ | 3 | geothermal water (dissolved boron) Mean and standard deviation recalculated from 3 analyses, -13.83 to -8.37 (YBJ-01 -12.73; YBJ-02 -13.83; YBJ-03 -8.37). | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| −12.73 ‰ | 1 | Yangbajing geothermal water (dissolved boron) Single analysis (Yangbajing). 52.13 mg/L B, pH 9.18, > 86 °C; δ18O -17.51 ‰. Comparison measurement of Zhang et al. (2023), who see geothermal water as the main boron source of the salt lakes. | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Yangbajing geothermal field (Tibet), isotope signatures. https://www.isofind.tech/isotopes/en/sites/champ-geothermal-de-yangbajing-tibet/ (accessed 2026-10-19).
@misc{isofind2026yangbajinggeothermalfieldtibe,
title = {Yangbajing geothermal field (Tibet), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/champ-geothermal-de-yangbajing-tibet/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19