Dagejia hot springs (Tibet)
Southern Tibet, China
Other media
- Type
- Other medium
Mediterranean-Himalayan geothermal belt, along the Indus-Yarlung Zangbo suture. Na-HCO3 waters at 82-85 °C, pH 7.6-8.0, reservoir about 210 °C (Na-K); caesium-bearing geyserite deposit. Only site where modern sinter was sampled. Site not precisely located: the source gives no coordinates.
δ30Si in ‰ (per mil) Values of the same system
Standard : NBS 28
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.19 ± 0.06 ‰ | 0.13 / 0.25 ‰ | 3 | filtered geothermal water (0.45 µm), dissolved silicon Mean and standard deviation recalculated from 3 samples. DGJ-7, DGJ-12 and DGJ-17. Initial-fluid values recalculated by the authors: 0.00, -0.13 and +0.02 ‰. Heaviest dissolved silicon of the three sites, attributed to rapid sinter precipitation. | Wang et al. (2019), The origin of rare alkali metals in geothermal fluids of southern Tib… |
| −0.24 ± 0.47 ‰ | −0.57 / 0.09 ‰ | 2 | siliceous sinter, opal-A Mean and standard deviation recalculated from 2 samples. Opal-A (DGJ-9, DGJ-10-1); the authors give -0.24 ± 0.24 ‰. | Wang et al. (2019), The origin of rare alkali metals in geothermal fluids of southern Tib… |
| −1.75 ± 0.07 ‰ | −1.8 / −1.7 ‰ | 2 | siliceous sinter, opal-CT Mean and standard deviation recalculated from 2 samples. Opal-CT (DGJ-8, DGJ-11), 2000-2300 ppm caesium. | Wang et al. (2019), The origin of rare alkali metals in geothermal fluids of southern Tib… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Dagejia hot springs (Tibet), isotope signatures. https://www.isofind.tech/isotopes/en/sites/sources-chaudes-de-dagejia-tibet/ (accessed 2026-10-13).
@misc{isofind2026dagejiahotspringstibetisotope,
title = {Dagejia hot springs (Tibet), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/sources-chaudes-de-dagejia-tibet/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13