Chabu 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). The most negative values of the study (52.8 and 56.9 mg/L B); spring changed from a geyser to a boiling spring, Eocene intrusion exposed; host rock estimated near -17.1 ‰ (residual melt).
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −16.52 ± 0.08 ‰ | −16.57 / −16.46 ‰ | 2 | geothermal water (dissolved boron) Mean and standard deviation recalculated from 2 analyses, -16.57 to -16.46 (Chabu-01 -16.57; Chabu-02 -16.46). | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| −16.57 ‰ | 1 | Chabu geothermal water (dissolved boron) Single analysis (Chabu). 56.88 mg/L B, pH 8.5, > 88 °C; δ18O -19.69 ‰. 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). Chabu geothermal field (Tibet), isotope signatures. https://www.isofind.tech/isotopes/en/sites/champ-geothermal-de-chabu-tibet/ (accessed 2026-10-19).
@misc{isofind2026chabugeothermalfieldtibetisot,
title = {Chabu geothermal field (Tibet), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/champ-geothermal-de-chabu-tibet/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19