Kamojang geothermal field (Java)
Java, Indonesia
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Geothermal systems of Java (Sunda arc) sampled in 2012-2013 by Purnomo et al. (2016); Quaternary volcanic systems receive magmatic fluids, fault-hosted systems in the south of the island mostly neutral waters. Coordinates not published (map only). Kendang volcanic complex.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.3 ‰ | 1 | hot spring water (dissolved boron) Single analysis (J10 Kawah Hujan). 95.4 °C, pH 4.9, 4.63 mg/L B; steam separation from the B/Cl ratio. | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… | |
| 9.27 ‰ | 1 | acid sulphate crater lake water (dissolved boron) Single analysis (J9 Kawah Kamojang). 40 °C, pH 2.9, 1.39 mg/L B; 5.5 ‰ heavier than the Kawah Kreta vapour (evaporation and adsorption onto clays according to the authors). | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… | |
| 3.84 ‰ | 1 | steam vent condensate (dissolved boron) Single analysis (J73 Kawah Kreta). 3.49 mg/L B, chloride below detection; 3.8 ‰ heavier than the Dieng brines. | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Kamojang geothermal field (Java), isotope signatures. https://www.isofind.tech/isotopes/en/sites/champ-geothermal-de-kamojang-java/ (accessed 2026-10-19).
@misc{isofind2026kamojanggeothermalfieldjavais,
title = {Kamojang geothermal field (Java), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/champ-geothermal-de-kamojang-java/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19