| Other hot springs of Java (Ciawi, Cipanas, Kalianget) Indonesia | 4.26 ± 4.81 ‰ | −0.7 / 8.9 ‰ | 3 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| El Tatio geothermal field (Chile) Chile | −4.6 ‰ | | 1 | hot spring water (dissolved boron) | Schmitt et al. (2002), Boron in central Andean ignimbrites: implications for crustal boro… |
| Chabu geothermal field (Tibet) China | −16.52 ± 0.08 ‰ | −16.57 / −16.46 ‰ | 2 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Chabu geothermal field (Tibet) China | −16.57 ‰ | | 1 | Chabu geothermal water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| Dieng geothermal field (Java) Indonesia | 2.7 ± 2.22 ‰ | 0.27 / 4.62 ‰ | 3 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Dieng geothermal field (Java) Indonesia | 34.86 ‰ | | 1 | acid sulphate crater lake water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Dieng geothermal field (Java) Indonesia | 0.12 ± 0.2 ‰ | −0.02 / 0.26 ‰ | 2 | geothermal well brine (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Kamojang geothermal field (Java) Indonesia | 2.3 ‰ | | 1 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Kamojang geothermal field (Java) Indonesia | 9.27 ‰ | | 1 | acid sulphate crater lake water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Kamojang geothermal field (Java) Indonesia | 3.84 ‰ | | 1 | steam vent condensate (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Puga geothermal field (Ladakh) India | −12.7 ± 0.3 ‰ | −13.1 / −12.2 ‰ | 6 | hot-spring geothermal fluid (dissolved boron) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Puga geothermal field (Ladakh) India | −12.8 ‰ | | 1 | mud-pool pore water (filtered) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Puga geothermal field (Ladakh) India | −14.4 ± 0.1 ‰ | −14.5 / −14.3 ‰ | 2 | evaporitic crusts and pastes (halite, tincalconite) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Puga geothermal field (Ladakh) India | −17.6 ‰ | | 1 | mud-pool rim sediment (muscovite, sulfur) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Puga geothermal field (Ladakh) India | −36 ± 2.6 ‰ | −37.8 / −34.1 ‰ | 2 | siliceous sinter (laminated crust and digitate nodules of amorphous silica) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Puga geothermal field (Ladakh) India | −28.3 ‰ | | 1 | hot-spring sediment (quartz, muscovite, calcite) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Puga geothermal field (Ladakh) India | −41 ‰ | | 1 | diatom-rich suspended sediment (mud pool) | Steller et al. (2019), Boron isotopes in the Puga geothermal system, India, and their imp… |
| Yangbajing geothermal field (Tibet) China | −11.64 ± 2.89 ‰ | −13.83 / −8.37 ‰ | 3 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Yangbajing geothermal field (Tibet) China | −12.73 ‰ | | 1 | Yangbajing geothermal water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| Semi glacier water (Tibet) China | −8.4 ‰ | | 1 | glacial meltwater (dissolved boron) | Li et al. (2023), Boron isotope constraints on the migration and accumulation of rare alk… |
| Evaporated Kerch mud volcano waters (Korolevsky, Central Lake Hill) Crimée | 9.8 ± 2.1 ‰ | 8.3 / 11.3 ‰ | 2 | water (dissolved boron) | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
| Hydrothermal fluids of the East Pacific Rise at 11-13° N | 34.9 ± 2 ‰ | 31.7 / 36.8 ‰ | 5 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| East Pacific Rise hydrothermal fluids at 21° N | 31.4 ± 1.4 ‰ | 29 / 32.7 ‰ | 8 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Escanaba Trough hydrothermal fluids (Gorda Ridge) | 10.7 ± 0.7 ‰ | 10.1 / 11.5 ‰ | 3 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Mariana Trough hydrothermal fluids (back-arc basin) | 26.1 ± 3.7 ‰ | 22.5 / 29.8 ‰ | 3 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Guaymas Basin hydrothermal fluids (Gulf of California) | 19.2 ± 3 ‰ | 16.5 / 23.2 ‰ | 4 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| TAG active mound hydrothermal fluids (Mid-Atlantic Ridge) | 30.7 ± 2.3 ‰ | 29.1 / 32.3 ‰ | 2 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Hydrothermal fluids of the MARK site (Mid-Atlantic Ridge, 23° N) | 26.8 ± 0.1 ‰ | 26.7 / 26.9 ‰ | 2 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Large deep-rooted Kerch mud volcanoes (Big Tarkhan, Andrusov, Oldenburgsky) Crimée | 12.3 ± 1.4 ‰ | 10.7 / 13.6 ‰ | 6 | water (dissolved boron) | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
| Da Qaidam Lake: rain China | 16.69 ‰ | | 1 | rain (dissolved boron) | Xiao et al. (1992), Boron isotopic compositions of brine, sediments, and source water in … |
| Siling Co lake (Tibet) China | 0.1 ‰ | | 1 | salt-lake water (dissolved boron) | Li et al. (2022), Boron isotope geochemistry of Bangor Co Salt Lake (central Tibet): impl… |
| Zabuye Lake: marsh (W3) China | −8.82 ‰ | | 1 | marsh water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| Kawah Putih crater lake (Patuha volcano, Java) Indonesia | 0.59 ‰ | | 1 | acid chloride crater lake water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Ganga Co and Ziza Co freshwater lakes (Lakkor Co basin) China | −15.2 ± 0.4 ‰ | −15.48 / −14.91 ‰ | 2 | lake water (dissolved boron) | Li et al. (2022), Boron isotope geochemistry of the Lakkor Co salt lake (Tibet) and its g… |
| Juan de Fuca Ridge hydrothermal plume | 34.5 ‰ | | 1 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Small shallow-rooted Kerch mud volcanoes (Tobichek, Eny-Kale, Soldatsko-Slobodsky) Crimée | 37.7 ± 18.1 ‰ | 18.6 / 54.7 ‰ | 3 | water (dissolved boron) | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
| Chilean Altiplano salars (Aguas Calientes, Sico, Tuyaito) Chile | 2 ± 4.3 ‰ | −2.7 / 5.7 ‰ | 3 | salar water (dissolved boron) | Schmitt et al. (2002), Boron in central Andean ignimbrites: implications for crustal boro… |
| Western Puna salars (Arizaro, Río Grande, Antofalla) Argentina | −5 ± 1.2 ‰ | −6.6 / −3.7 ‰ | 4 | salar brine (dissolved boron) | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Western Puna salars (Arizaro, Río Grande, Antofalla) Argentina | −5.9 ± 8.4 ‰ | −14.6 / 5.2 ‰ | 6 | salar halite | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Salinas Grandes (eastern Puna) Argentina | −18.3 ‰ | | 1 | salar brine (dissolved boron) | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Salinas Grandes (eastern Puna) Argentina | −14.5 ‰ | | 1 | salar halite | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Hot brines of the Suakin and Valdivia deeps (Red Sea) | 34.6 ± 6.2 ‰ | 30.2 / 39 ‰ | 2 | seafloor hydrothermal fluid (dissolved boron) | Palmer (1991), Boron isotope systematics of hydrothermal fluids and tourmalines: A synthe… |
| Kawu hot spring (Tibet) China | −12.56 ‰ | | 1 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Kawu hot spring (Tibet) China | −11.7 ± 0.6 ‰ | −12.1 / −11.2 ‰ | 2 | geothermal water (dissolved boron) | Li et al. (2023), Boron isotope constraints on the migration and accumulation of rare alk… |
| Zhegu hot spring (southern Tibet) China | 0.52 ‰ | | 1 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Antuco thermal spring (Puna) Argentina | −12.5 ‰ | | 1 | thermal water (dissolved boron) | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Botijuela thermal spring (western Puna) Argentina | 0.7 ‰ | | 1 | thermal water (dissolved boron) | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Coastal hot springs with seawater input (Parangtritis, Krakal, Java) Indonesia | 26.77 ± 2.73 ‰ | 24.84 / 28.7 ‰ | 2 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Dagejia hot springs (Tibet) China | −15.7 ± 0.3 ‰ | −15.9 / −15.4 ‰ | 3 | geothermal water (dissolved boron) | Li et al. (2023), Boron isotope constraints on the migration and accumulation of rare alk… |
| Semi hot springs (Tibet) China | −19.6 ± 1.3 ‰ | −21.2 / −18.3 ‰ | 4 | geothermal water (dissolved boron) | Li et al. (2023), Boron isotope constraints on the migration and accumulation of rare alk… |
| Semi hot springs (Tibet) China | −12.46 ‰ | | 1 | Semi geothermal water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| Hot springs of Quaternary volcanoes of Java (Lamongan, Tampomas, Pangalengan, Darajat) Indonesia | 4.73 ± 6.33 ‰ | −0.95 / 12.81 ‰ | 4 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Hot springs of fault-hosted systems of Java (Batu Kapur, Pakenjeng, Cilayu, Cikundul, Cisolok) Indonesia | 1.3 ± 4.59 ‰ | −2.36 / 9.31 ‰ | 5 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Arjuna-Welirang complex hot springs (Java) Indonesia | 9.55 ± 3.44 ‰ | 7.12 / 11.98 ‰ | 2 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Lawu volcano hot springs (Java) Indonesia | 4.64 ± 3.37 ‰ | 1.33 / 8.07 ‰ | 3 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Slamet volcano hot springs (Java) Indonesia | 6.84 ± 1.32 ‰ | 5.9 / 7.77 ‰ | 2 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Gulu and Qucai geothermal springs (Yadong-Gulu rift, Tibet) China | −6.45 ± 0.86 ‰ | −7.06 / −5.84 ‰ | 2 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Low-B geothermal springs of the Lhasa block (Xiqin, Qiaga, Xizha, Caizha, Xueru, Ruduo, Dezhong) China | −10.99 ± 3.29 ‰ | −13.61 / −5.96 ‰ | 7 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Low-B geothermal springs of the Lhasa block (Xiqin, Qiaga, Xizha, Caizha, Xueru, Ruduo, Dezhong) China | −12.82 ‰ | | 1 | Caizha geothermal water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| High-B geothermal springs of southern Tibet (Buxionglanggu, Shagalangga, Babudemi, Chaka, Lawangzi) China | −11.27 ± 0.65 ‰ | −12.43 / −10.87 ‰ | 5 | geothermal water (dissolved boron) | Zhang et al. (2015), Boron geochemistry from some typical Tibetan hydrothermal systems: O… |
| Active thermal springs of the eastern Puna (Tuzgle, Baños de Pompeya, Baños Incachule, Puente del Diablo, Luracatao) Argentina | −12.8 ± 1.8 ‰ | −15.3 / −10.4 ‰ | 5 | thermal water (dissolved boron) | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| Active thermal springs of the eastern Puna (Tuzgle, Baños de Pompeya, Baños Incachule, Puente del Diablo, Luracatao) Argentina | −9.3 ± 6.2 ‰ | −16.4 / −5.2 ‰ | 3 | thermal-spring halite | Kasemann et al. (2004), Boron isotope composition of geothermal fluids and borate mineral… |
| La Soufrière thermal springs (Guadeloupe) France | 11.7 ± 2.8 ‰ | 8.1 / 15.1 ‰ | 5 | thermal water (dissolved boron) | Louvat et al. (2011), Boron isotope ratios of surface waters in Guadeloupe, Lesser Antill… |
| La Soufrière thermal springs (Guadeloupe) France | 12 ‰ | | 1 | spring water (dissolved boron) | Louvat et al. (2011), Boron isotope ratios of surface waters in Guadeloupe, Lesser Antill… |
| Ries crater suevite, Nördlingen 1973 drill core Germany | −4.1 ± 4.2 ‰ | −8.9 / −1.2 ‰ | 3 | secondary smectite (< 2 µm) | Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the … |
| Ries crater suevite, Nördlingen 1973 drill core Germany | −21.8 ‰ | | 1 | secondary smectite (< 2 µm), bottom of the core | Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the … |
| Ries fall-out suevite at Amerdingen Germany | −23.6 ‰ | | 1 | secondary smectite (< 2 µm) | Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the … |
| Ries fall-out suevite at Aumühle Germany | −26.3 ‰ | | 1 | secondary smectite (< 2 µm) | Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the … |
| Ries fall-out suevite at Lehberg Germany | −22.7 ‰ | | 1 | secondary smectite (< 2 µm) | Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the … |
| Ries fall-out suevite at Otting Germany | −25.6 ‰ | | 1 | secondary smectite (< 2 µm) | Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the … |
| Taruo Co (lake and river) China | −4.84 ‰ | | 1 | river water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| Taruo Co (lake and river) China | −10.32 ‰ | | 1 | lake water (dissolved boron) | Zhang et al. (2023), Boron source and evolution of the Zabuye salt lake, Tibet: Indicatio… |
| Tangkuban Parahu volcano (Java) Indonesia | 2.4 ‰ | | 1 | hot spring water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
| Tangkuban Parahu volcano (Java) Indonesia | 5.54 ‰ | | 1 | acid sulphate crater lake water (dissolved boron) | Purnomo et al. (2016), Boron isotope variations in geothermal systems on Java, Indonesia,… |
