A global dataset of helium isotopic data in tectonically and hydrothermally active geological environments

A global dataset of helium isotopic data in tectonically and hydrothermally active geological environments GHERARDI Fabrizio 1, *, FACCA Gianluca 1, PIEROTTI Lisa 1, MARTINELLI Giovanni 2,3,4, PINTI Daniele Luigi 5 1 Consiglio Nazionale delle Ricerche (CNR), Istituto di Geoscienze e Georisorse (IGG), Pisa, Italy 2 Istituto Nazionale di Geofisica e Vulcanologia (INGV), Palermo, Italy 3 Key Laboratory of Groundwater Quality and Health Ministry of Education, School of Environmental Sciences, China University of Geosciences, Wuhan, China Geosciences, Wuhan, China 4 Key Laboratory of Petroleum Resources Exploration and Evaluation, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China 5 GEOTOP & Département des sciences de la Terre et de l’atmosphère, Université du Québec à Montréal, Montréal, Canada * Correspondence to: fabrizio.gher[email protected] List of peer-reviewed manuscripts cited in the database The following list of references does not include all publications consulted, but only those from which at least one data point was extracted and included in the database. In cases where multiple analyses were conducted at the same site or sampling point, only the sample with the highest 3He/4He value was incorporated into the database. [1]. Abrajano et al. (1988). Methane-hydrogen gas seeps, Zambales ophiolite, Philippines: Deep or shallow origin? Chemical Geology 71, 211-222. doi.org/10.1016/0009-2541(88)90116-7 (Abrajano T.A., Sturchio M., Bohlke J.K., Lyon G.L., Poreda R.J., Stevens C.M.) [2]. Aeschbach-Hertig et al. (1996). Quantification of gas fluxes from the subcontinental mantle: The example of Laacher See, a maar lake in Germany. Geochimica et Cosmochimica Acta 60, 31-41. doi.org/10.1016/00167037(95)00370-3 (Aeschbach-Hertig W., Kipfer R., Hofer M., Imboden D.M., Wieler R., Signer P.) [3]. Aguilera et al. (2012). Geochemical model of a magmatic–hydrothermal system at the Lastarria volcano, northern Chile. Bulletin of Volcanology 74, 119-134. doi.org/10.1007/s00445-011-0489-5 (Aguilera F., Tassi F., Darrah T., Moune S., Vaselli O.) [4]. Agusto et al. (2013). Gas geochemistry of the magmatic-hydrothermal fluid reservoir in the Copahue– Caviahue Volcanic Complex (Argentina). Journal of Volcanology and Geothermal Research 257, 44–56. doi.org/10.1016/j.jvolgeores.2013.03.003 (Agusto M., Tassi F., Caselli A.T., Vaselli O., Rouwet D., Capaccioni B., Caliro S., Chiodini G., Darrah T.) [5]. Aizawa et al. (2016). Gas pathways and remotely triggered earthquakes beneath Mount Fuji, Japan. Geology 44, 127-130. doi.org/10.1130/G37313.1 (Aizawa K., Sumino H., Uyeshima M., Yamaya Y., Hase H., Takahashi H.A., Takahashi M., Kazahaya K., Ohno M., Rung-Arunwan T., Ogawa Y.) [6]. Aka et al. (2001). Noble gas isotopic compositions and water/gas chemistry of soda springs from the islands of Bioko, Sao Tomè and Annobon, along with Cameroon Volcanic Line, West Africa. Applied Geochemistry 16, 323-338. doi.org/10.1016/S0883-2927(00)00037-8 (Aka F.T., Kusasabe M., Nagao K., Tanyileke G.) [7]. Allard et al. (1991). Eruptive and diffuse emissions of CO2 from Mount Etna. Nature 351, 387-391. doi.org/10.1038/351387a0 (Allard P., Carbonnelle J., Dajlevic D., Le Bronec J., Morel P., Robe M.C., Maurenas J.M., Faivre-Pierret R., Martin D., Sabroux J.C., Zettowoog P.) [8]. Allard et al. (1997) Mantle-derived helium and carbon in groundwaters and gases of Mount Etna, Italy. Earth and Planetary Science Letters 148, 501-516. doi.org/10.1016/S0012-821X(97)00052-6 (Allard P., JeanBaptiste P., D'Alessandro W., Parello F., Parisi B., Flehoc C.) [9]. Alonso et al. (2021). Changes in the thermal energy and the diffuse 3He and 4He degassing prior to the 2014– 2015 eruption of Pico do Fogo volcano, Cape Verde. Journal of Volcanology and Geothermal Research 107271. doi.org/10.1016/j.jvolgeores.2021.107271 (Alonso M., Pérez N.M., Padrόn E., Hernández P.A., Melián G.V., Sumino H., Padilla G., Barrancos J., Rodríguez F., Dionis S., Asensio-Ramos M., Amonte C., Silva S., Pereira J.M.) [10]. Alonso et al. (2022). Thermal energy and diffuse 4He and 3He degassing released in volcanic-geothermal systems. Renewable Energy 182, 17-31. doi.org/10.1016/j.renene.2021.10.016 (Alonso M., Pérez N.M., Hernández P.A., Padrón E., Melían G., Rodríguez F., Padilla G., Barrancos J., Asensio-Ramos M., Fridriksson T., Sumino H.) [11]. Amaral et al. (2017). Helium evidences for mantle degassing in the groundwater of Madeira Island, Portugal. Applied Geochemistry 81, 98-108. doi.org/10.1016/j.apgeochem.2017.03.019 (Amaral H.I.F., Midões C., Kipfer R.) [12]. Andrews et al. (1985). A radiochemical, hydrochemical and dissolved gas study of groundwaters in the Molasse basin of Upper Austria. Earth and Planetary Science Letters 73, 317-332. doi.org/10.1016/0012821X(85)90080-9 (Andrews J.N., Goldbrunner J.E., Darling W.G., Hooker P.J., Wilson G.B., Youngman M.J., Eichinger L., Rauert W., Stichler W.) [13]. Angelone et al. (2005). Fluid geochemistry of the Sardinian Rift-Campidano Graben (Sardinia, Italy): fault segmentation, seismic quiescence of geochemically “active” faults, and new constraints for selection of CO2 storage sites. Applied Geochemistry 20, 317-340. doi.org/10.1016/j.apgeochem.2004.08.008 (Angelone M., Gasparini C., Guerra M., Lombardi S., Pizzino L., Quattrocchi F., Sacchi E., Zuppi G.M.) [14]. Apollaro et al. (2020). Fluid geochemistry in a low-enthalpy geothermal field along a sector of southern Apennines chain (Italy). Journal of Geochemical Exploration 219, 106618. doi.org/10.1016/j.gexplo.2020.106618 (Apollaro C., Caracausi A., Paternoster M., Randazzo P., Aiuppa A., De Rosa R., Fuoco I., Mongelli G., Muto F., Vanni E., Vespasiano G.) [15]. Ascione et al. (2018). Assessing mantle versus crustal sources for non-volcanic degassing along fault zones in the actively extending southern Apennines mountain belt (Italy). Geological Society of America Bulletin 130, 1697-1722. doi.org/10.1130/B31869.1 (Ascione A., Ciotoli G., Bigi S., Buscher J., Mazzoli S., Ruggiero L., Sciarra A., Tartarello M.C., Valente E.) [16]. Aydin et al. (2024). Helium and carbon isotope compositions of thermal fluids in the northeastern Anatolia: Implications for the heat source and volatile flux. Chemical Geology 668, 122349. doi.org/10.1016/j.chemgeo.2024.122349 (Aydin H., Karakuş H., Mutlu H., Güleç N.) [17]. Babadi et al. (2019). Origin of fluids discharged from mud volcanoes in SE Iran. Marine and Petroleum Geology 106, 190-205. doi.org/10.1016/j.marpetgeo.2019.05.005 (Babadi M.F., Mehrabi B., Tassi F., Cabassi J., Vaselli O., Shakeri A., Pecchioni E., Venturi S., Zelenski M., Chaplygin I.) [18]. Baciu et al. (2007). Mud volcanoes and methane seeps in Romania: main features and gas flux. Annals of Geophysics 50, 501-511. doi.org/10.4401/ag-4435 (Baciu C., Caracausi A., Etiope G., Italiano F.) [19]. Bao et al. (2024). Gas isotope geochemistry of Tangquan hot spring system in Nanjing (China). Applied Geochemistry 173, 106118. doi.org/10.1016/j.apgeochem.2024.106118 (Bao Y., Pang Z., Li Y., Tian J., Luo J., Fan Y., Yang F., Qian T., Chen F., Sun C., Zhou Z.) [20]. Barberio et al. (2021). Understanding the Origin and Mixing of Deep Fluids in Shallow Aquifers and Possible Implications for Crustal Deformation Studies: San Vittorino Plain, Central Apennines. Applied Sciences 11, 1353. doi.org/10.3390/app11041353 (Barberio M.D., Gori F., Barbieri M., Boschetti T., Caracausi A., Cardello G.L., Petitta M.) [21]. Barry et al. (2013). Helium and carbon isotope systematics of cold “mazuku” CO2 vents and hydrothermal gases and fluids from Rungwe Volcanic Province, southern Tanzania. Chemical Geology 339, 141-156. doi.org/10.1016/j.chemgeo.2012.07.003 (Barry P.H., Hilton D.R., Fischer T.P., de Moor J.M., Mangasini F., Ramirez C.) [22]. Barry et al. (2019). Helium, inorganic and organic carbon isotopes of fluids and gases across the Costa Rica convergent margin. Scientific Data 6:284, doi.org/10.1038/s41597-019-0302-4. (Barry P.H., Nakagawa M., Giovannelli D., de Moor J.M., Schrenk M., Seltzer A.M., Manini E., Fattorini D., Di Carlo M., Regoli F., Fullerton K., Loyd K.) [23]. Barry et al. (2020). Volatile sources, sinks and pathways: A helium-carbon isotope study of Baja California fluids and gases. Chemical Geology 550, 119722. doi.org/10.1016/j.chemgeo.2020.119722 (Barry P.H., Negrete-Aranda R., Splez R.M., Seltzer A.M., Bekaert D.V., Virrueta C., Kulungoski J.T.) [24]. Barry et al. (2021). Helium-carbon systematics of groundwaters in the Lassen Peak Region. Chemical Geology 584, 120535. doi.org/10.1016/j.chemgeo.2021.120535 (Barry P.H., Bekaert D.V., Krantz J.A., Halldórsson S.A., de Moor J.M., Fischer T.P., Werner C., Kelly P.J., Seltzer A.M., Franz B.P., Kulongoski J.T.) [25]. Barry et al. (2022). The Helium and Carbon Isotope Characteristics of the Andean Convergent Margin. Frontiers in Earth Science 10:897267. doi.org/10.3389/feart.2022.897267 (Barry P.H., De Moor J.M., Chiodi A., Aguilera F., Hudak M.R., Bekaert D.V., and other 19 authors) [26]. Batista Cruz et al. (2019). Mantle Degassing Through Continental Crust Triggered by Active Faults: The Case of the Baja California Peninsula, Mexico. Geochemistry Geophysics Geosystems 20, 1912-1936. doi.org/10.1029/2018GC007987 (Batista Cruz R.Y., Rizzo A.L., Grassa F., Romero R.B., González Fernández A., Kretzschmar T.G., Gómez-Arias E.) [27]. Battani et al. (2010). Trinidad Mud Volcanoes: The origin of the gas. In: Wood L., ed, Shale Tectonics, American Association of Petroleum Geologists Memoir 93, 225-238. doi.org/10.1306/13231317M933427 (Battani A., Prinzhofer A., Deville E., Ballentine C.J.) [28]. Baumberger et al. (2018). Mantle-Derived Helium and Multiple Methane Sources in Gas Bubbles of Cold Seeps Along the Cascadia Continental Margin. Geochemistry Geophysics Geosystems 19, 4476-4486. doi.org/10.1029/2018GC007859 (Baumberger T., Embley R.W., Merle S.G., Lilley M.D., Raineault N.A., Lupton J.E.) [29]. Bayon et al. (2008). Noble gas and boron isotopic signatures of the Bacon-Manito geothermal fluid, Philippines. Geofluids 8, 230-238. doi.org/10.1111/j.1468-8123.2008.00224.x (Bayon F.E.B, See F.S., Magro G., Pennisi M.) [30]. Bekaert et al. (2021). High 3He/4He in central Panama reveals a distal connection to the Galápagos plume. Proceedings of the National Academy of Sciences of USA 118, e2110997118. doi.org/10.1073/pnas.2110997118 (Bekaert D.V., Gazel E., Turner S., Behn M.D., de Moor J.M., Zahirovic S. and other 17) [31]. Belhai et al. (2017). Hydrochemistry and gas geochemistry of the northeastern Algerian geothermal waters. Arabian Journal of Geosciences 10:8. doi:10.1007/s12517-016-2790-2. (Belhai M., Fujimitsu Y., Nishijima J., Bersi M.) [32]. Benavente et al. (2013). Origin of fumarolic fluids from Tupungatito Volcano (Central Chile): interplay between magmatic, hydrothermal, and shallow meteoric sources. Bulletin of Volcanology 75, 746. doi.org/10.1007/s00445-013-0746-x (Benavente O., Tassi F., Gutiérrez F., Vaselli O., Aguilera F., Reich M.) [33]. Benavente et al. (2016). Chemical and isotopic features of cold and thermal fluids discharged in the Southern Volcanic Zone between 32.5°S and 36°S: Insights into the physical and chemical processes controlling fluid geochemistry in geothermal systems of Central Chile. Chemical Geology 420, 97–113. doi.org/10.1016/j.chemgeo.2015.11.010 (Benavente O., Tassi F., Reich M., Aguilera F., Capecchiacci F., Gutiérrez F., Vaselli O., Rizzo A.) [34]. Bergfeld et al. (2014a). Gas and Isotope Chemistry of Thermal Features in Yellowstone National Park, Wyoming. USGS Scientific Investigations Report 2011–5012, Version 1.1. doi.org/10.3133/sir20115012 (Bergfeld D., Lowestern J.B., Hunt A.G., Pat Shanks III W.C., Evans W.C.) [35]. Bergfeld et al. (2014b). Geochemical Investigation of the Hydrothermal System on Akutan Island, Alaska, July 2012. USGS Scientific Investigations Report 2013–5231. https://doi.org/10.3133/sir20135231 (Bergfeld D., Lewicki J.L., Evans W.C., Hunt A.G., Revesz K., Huebner M.) [36]. Bini et al. (2022). Nitrogen, helium, and argon reveal the magmatic signature of fumarole gases and episodes of outgassing from upper-crustal magma reservoirs: The case of the Nisyros caldera (Aegean Arc, Greece). Geochimica et Cosmochimica Acta 335, 68-84. doi.org/10.1016/j.gca.2022.08.028 (Bini G., Chiodini G., Caliro S., Tassi F., Vaselli O., Rizzo A.L., Mollo S., Vougioukalakis G.E., Bachmann O.) [37]. Blomgren et al. (2019). Hot spring hydrochemistry of the Rio Grande rift in northern NewMexico reveals a distal geochemical connection between Valles Caldera and Ojo Caliente. Journal of Volcanology and Geothermal Research 387, 106663. doi.org/10.1016/j.jvolgeores.2019.106663 (Blomgren V.J., Crossey L.J., Karlstrom K.E., Fischer T.P., Darrah T.H.) [38]. Bo et al. (2015). Chemical and isotopic characteristics and origin of spring waters in the Lanping–Simao Basin, Yunnan, Southwestern China. Chemie Der Erde 75, 287-300. doi.org/10.1016/j.chemer.2015.04.002 (Bo Y., Liu C., Zhao Y., Wang L.) [39]. Bottomley et al. (1984). Helium and neon isotope geochemistry of some ground waters from the Canadian Precambrian Shield. Geochimica et Cosmochimica Acta 48, 1973-1985. (Bottomley D.J., Ross J.D., Clarke W.B.) [40]. Botz et al. (1996). Hydrothermal gases offshore Milos Island, Greece. Chemical Geology 130, 161–173. doi.org/10.1016/0009-2541(96)00023-X (Botz, R., Stüben, D., Winckler, G., Bayer, R., Schmitt, M., Faber, E.) [41]. Botz et al. (1999). Origin of trace gases in submarine hydrothermal vents of the Kolbeinsey Ridge, north Iceland. Earth and Planetary Science Letters 171, 83-93. doi.org/10.1016/S0012-821X(99)00128-4 (Botz, R., Winkler, G., Bayer, R., Schmitt, M., Garbe-Schonberg Stoffers P., Kristjansson J.K.D.) [42]. Boucher et al. (2018). Atmospheric helium isotope composition as a tracer of volcanic emissions: A case study of Erta Ale volcano, Ethiopia. Chemical Geology 480, 3-11. doi.org/10.1016/j.chemgeo.2017.05.011 (Boucher C., Lan T., Marty B., Burnard P.G., Fischer T.P., Ayalew D., Mabry J., de Moor J.M., Zelenski M.E., Zimmermann L.) [43]. Boudoire et al. (2020). Paroxysmal eruptions tracked by variations of helium isotopes: inferences from Piton de la Fournaise (La Réunion island). Scientific Reports 10:9809. doi.org/10.1038/s41598-020-66260-x (Boudoire G., Rizzo A.L., Arienzo I., Di Muro A.) [44]. Boudoire et al. (2022). Chemical variability in volcanic gas plumes and fumaroles along the East African Rift System. Chemical Geology 596, 120811. doi.org/10.1016/j.chemgeo.2022.120811 (Boudoire G., Giuffrida G., Liuzzo M., Bobrowski N., Calabrese S., Kuhn J., Kazadi Mwepu J.-C., Grassa F., Caliro S., Rizzo A.L., Italiano F., Yalire M., Karume K., Muhindo Syavulisembo A., Tedesco D.) [45]. Bräuer et al. (2005). Evidence for ascending upper mantle-derived melt beneath the Cheb basin, central Europe. Geophysical Research Letters 32, L08303. doi:10.1029/2004GL022205. (Bräuer K., Kämpf H., Niedermann S., Strauch G.) [46]. Bräuer et al. (2013). Indications for the existence of different magmatic reservoirs beneath the Eifel area (Germany): A multi-isotope (C, N, He, Ne, Ar) approach. Chemical Geology, 356, 193–208. doi.org/10.1016/j.chemgeo.2013.08.013 (Bräuer, K., Kämpf, H., Niedermann, S., Strauch, G.) [47]. Bräuer et al. (2016). Helium and carbon isotope signatures of gas exhalations in the westernmost part of the Pannonian Basin (SE Austria/NE Slovenia): Evidence for active lithospheric mantle degassing. Chemical Geology 422, 60-70. doi.org/10.1016/j.chemgeo.2015.12.016 (Bräuer K., Geissler W.H., Kämpf H., Niedermannn S., Rman N.) [48]. Bräuer et al. (2017). Regional distribution pattern of carbon and helium isotopes from different volcanic fields in the French Massif Central: Evidence for active mantle degassing and water transport. Chemical Geology 469, 4-18. doi.org/10.1016/j.chemgeo.2017.04.004 (Bräuer K., Kämpf H., Niedermannn S., Wetzel H-U.) [49]. Bräuer et al. (2018). Monitoring of helium and carbon isotopes in the western Eger Rift area (Czech Republic): Relationships with the 2014 seismic activity and indications for recent (2000–2016) magmatic unrest. Chemical Geology 482, 131-145. doi.org/10.1016/j.chemgeo.2018.02.017 (Bräuer K., Kämpf H., Niedermann S., Strauch G.) [50]. Burnard et al. (2012). Constraints on fluid origins and migration velocities along the Marmara Main Fault (Sea of Marmara, Turkey) using helium isotopes. Earth and Planetary Science Letters 341-344, 68-78. doi.org/10.1016/j.epsl.2012.05.042 (Burnard P., Bourlange S., Henry P., Geli L., Tryon M.D., Natal'in B., Sengör A.M.C., Çagatay M.N.) [51]. Buttitta et al. (2020). Continental degassing of helium in an active tectonic setting (northern Italy): the role of seismicity. Scientific Reports 10:162. doi.org/10.1038/s41598-019-55678-7 (Buttitta D., Caracausi A., Chiaraluce L., Favara R., Gasparo Morticelli M., Sulli A.) [52]. Capaccioni et al. (2007). Submarine gas burst at Panarea Island (southern Italy) on 3 November 2002: A magmatic versus hydrothermal episode. Journal of Geophysical Research 112, B05201, doi:10.1029/2006JB004359. (Capaccioni B., Tassi F., Vaselli O., Tedesco D., Poreda R.) [53]. Capaccioni et al. (2011). Geochemical and isotopic evidences of magmatic inputs in the hydrothermal reservoir feeding the fumarolic discharges of Tacora volcano (northern Chile). Journal of Volcanology and Geothermal Research 208, 77-85. doi.org/10.1016/j.jvolgeores.2011.09.015 (Capaccioni B., Aguilera F., Tassi F., Darrah T., Poreda R.J., Vaselli O.) [54]. Capasso et al. (2005). Geochemical monitoring of the 2002–2003 eruption at Stromboli volcano (Italy): precursory changes in the carbon and helium isotopic composition of fumarole gases and thermal waters. Bulletin of Volcanology 68, 118-134. (Capasso G., Carapezza M.L., Federico C., Inguaggiato S., Rizzo A.) [55]. Caracausi and Paternoster (2015). Radiogenic helium degassing and rock fracturing: A case study of the southern Apennines active tectonic region. Journal of Geophysical Research Solid Earth 120, 2200-2211. doi.org/10.1002/2014JB011462 (Caracausi A., Paternoster M.) [56]. Caracausi and Sulli (2019). Outgassing of Mantle Volatiles in Compressional Tectonic Regime Away From Volcanism: The Role of Continental Delamination. Geochemistry Geophysics Geosystems 20, 2007-2020. doi.org/10.1029/2018GC008046 (Caracausi A., Sulli A.) [57]. Caracausi et al. (2005). Active geodynamics of the central Mediterranean Sea: Tensional tectonic evidences in western Sicily from mantle-derived helium. Geophysical Research Letters 32, L04312. (Caracausi A., Favara R., Italiano F., Nuccio P.M., Paonita A., Rizzo A.) [58]. Caracausi et al. (2013). Active degassing of mantle-derived fluid: A geochemical study along the Vulture line, southern Apennines (Italy). Journal of Volcanology and Geothermal Research 253, 65-74. doi.org/10.1016/j.jvolgeores.2012.12.005 (Caracausi A., Martelli M., Nuccio P.M., Paternoster M., Stuart F.M.) [59]. Cardoso et al. (2023). Helium isotope evidence for cryptic magmatism along Central France. Chemical Geology 634, 121588. doi.org/10.1016/j.chemgeo.2023.121588 (Cardoso C.D., Russier E., Marty B., Pik R., Bekaert D.V., Seltzer A., and 6 more authors) [60]. Carreira et al. (2010). Mantle-derived carbon in Hercynian granites. Stable isotopes signatures and C/He associations in the thermomineral waters, N-Portugal. Journal of Volcanology and Geothermal Research 189, 49–56. doi.org/10.1016/j.jvolgeores.2009.10.008 (Carreira P.M., Marques J.M., Carvalho M.R., Capasso G., Grassa F.) [61]. Castro et al. (1998). Noble gases as natural tracers of water circulation in the Paris Basin 1. Measurements and discussion of their origin and mechanisms of vertical transport in the basin. Water Resources Research 34, 2443-2466. doi.org/10.1029/98WR01957 (Castro M.C., Jambon A., de Marsily G., Schlosser P.) [62]. Chang et al. (2021). Fluid Geochemistry within the North China Craton: Spatial Variation and Genesis. Geofluids 2021, 1009766, doi.org/10.1155/2021/1009766. (Chang L., Ying L., Zhi C., Zhaofei L., Yuanxin Z., Le H.) [63]. Charlou et al. (1996). Gases and helium isotopes in high temperature solutions sampled before and after ODP Leg 158 drilling at TAG hydrothermal field (26°N, MAR). Geophysical Research Letters 23, 3491-3494. https://doi.org/10.1029/96GL02141 (Charlou J.L., Donval J.P., Jean-Baptiste P., Dapoigny A., Rona P.A.) [64]. Charlou et al. (2000). Compared geochemical signatures and the evolution of Menez Gwen (37°50′N) and Lucky Strike (37°17′N) hydrothermal fluids, south of the Azores Triple Junction on the Mid-Atlantic Ridge. Chemical Geology 171, 49-75. doi.org/10.1016/S0009-2541(00)00244-8 (Charlou J.L., Donval J.P., Douville E., Jean-Baptiste P., Radford-Knoery J., Fouquet Y., Sapoigny A., Stievenard M.) [65]. Chelnokov et al. (2022). Geochemistry of Thermal and Cold Mineral Water and Gases of the Tien Shan and the Pamir. Water 14, 838. doi.org/10.3390/w14060838 (Chelnokov G., Lavrushin V., Bragin I., Abdullaev A., Aidarkozhina A., Kharitonova N.) [66]. Chen et al. (2019). Mantle fluids associated with crustal-scale faulting in a continental subduction setting, Taiwan. Scientific Reports 9, 10805. doi.org/10.1038/s41598-019-47070-2 (Chen A-T., Shen C-C., Byrne T.B., Sano Y., Takahata N., Yang T.F., Wang Y.) [67]. Chen et al. (2020). Helium Isotopic Signature of a Plate Boundary Suture in an Active Arc−Continent Collision. ACS Earth Space Chemistry 4, 1237-1246. doi.org/10.1021/acsearthspacechem.0c00038 (Chen A-T., Sano Y., Byrne T.B., Takahata N., Yang T.F., Wang Y., Shen C-C.) [68]. Chen et al. (2022). Geochemical and geophysical effects of tectonic activity in faulted areas of the North China Craton. Chemical Geology 609, 121048. doi.org/10.1016/j.chemgeo.2022.121048 (Chen Z., Li Y., Liu Z., He H., Martinelli G., Lu C., Gao Z.) [69]. Chiodini et al. (2011). Geochemical evidence for and characterization of CO2 rich gas sources in the epicentral area of the Abruzzo 2009 earthquakes. Earth and Planetary Science Letters 304, 389-398. doi.org/10.1016/j.epsl.2011.02.016 (Chiodini G., Caliro S., Cardellini C., Frondini F., Inguaggiato S., Matteucci F.) [70]. Chiodini et al. (2012). Insights from fumarole gas geochemistry on the origin of hydrothermal fluids on the Yellowstone Plateau. Geochimica et Cosmochimica Acta 89, 265-278. doi.org/10.1016/j.gca.2012.04.051 (Chiodini G., Caliro S., Lowestern J.B., Evans W.C., Bergfeld D., Tassi F., Tedesco D.) [71]. Chivas et al. (1987). Liquid carbon dioxide of magmatic origin and its role in volcanic eruptions. Nature 326, 587-589. doi.org/10.1038/326587a0 (Chivas A.R., Barnes I., Evans W.C., Lupton J.E., Stone J.O.) [72]. Cinti et al. (2014). Fluid geochemistry and geothermometry in the unexploited geothermal field of the Vicano– Cimino Volcanic District (Central Italy). Chemical Geology 371, 96-114. doi.org/10.1016/j.chemgeo.2014.02.005 (Cinti D., Tassi F., Procesi M., Bonini M., Capecchiacci F., Voltattorni N., Vaselli O., Quattrocchi F.) [73]. Clark and Phillips (2000). Geochemical and 3He/4He evidence for mantle and crustal contributions to geothermal fluids in the western Canadian continental margin. Journal of Volcanology and Geothermal Research 104, 261-276. doi.org/10.1016/S0377-0273(00)00209-2 (Clark I.D., Phillips R.J.) [74]. Craig et al. (1978a). Helium isotope ratios in Yellowstone and Lassen Park volcanic gases. Geophysical Research Letters 5, 897-900. doi.org/10.1029/GL005i011p00897 (Craig H., Lupton J.E., Welhan J.A., Poreda R.) [75]. Craig et al. (1978b) A mantle helium component in Circum-Pacific volcanic gases: Hakone, the Marianas and Mt. Lassen. In: Terrestrial rare gases (Eds. E.C.Alexander and M.Ozima), Tokio, Centr. Acad. Publ., 3-16. ISBN 978-9401098304 (Craig H., Lupton J.A., Horibe J.) [76]. Crankshaw et al. (2018). Multi-year high-frequency hydrothermal monitoring of selected high-threat Cascade Range volcanoes. Journal of Volcanology and Geothermal Research 356, 24-35. doi.org/10.1016/j.jvolgeores.2018.02.014 (Crankshaw I.M., Archfield S.A., Newman A.C., Bergfeld D., Clor L.E., Spicer K.R., Kelly P.J., Evans W.C., Ingebritsen S.E.) [77]. Crossey et al. (2006). Dissected hydrologic system at the Grand Canyon: Interaction between deeply derived fluids and plateau aquifer waters in modern springs and travertine. Geology 34, 25-28. doi.org/10.1130/G22057.1 (Crossey L.J., Fischer T.P., Patchett P.J., Karlstrom K.E., Hilton D.R., Newell D.L., Huntoon P., Reynolds A.C., de Leeuw G.A.M.) [78]. Cuoco et al. (2017). Fluid geochemistry of the Mondragone hydrothermal systems (southern Italy): water and gas compositions vs. geostructural setting. International Journal of Earth Sciences 106, 2429-2444. doi.org/10.1007/s00531-016-1439-4 (Cuoco E., Minissale A., Di Leo A., Tamburrino S., Iorio M., Tedesco D.) [79]. D'Alessandro et al. (2014). A geochemical traverse along the “Sperchios Basin e Evoikos Gulf” graben (Central Greece): Origin and evolution of the emitted fluids. Marine and Petroleum Geology 55, 295-308. doi.org/10.1016/j.marpetgeo.2013.12.011 (D'Alessandro W., Brusca L., Kyriakopulos K, Bellomo S., Calabrese S.) [80]. D'Alessandro et al. (2018a). Large compositional differences in the gases released from the Kizildag ophiolitic body (Turkey): Evidences of prevailingly abiogenic origin. Marine and Petroleum Geology 89, 174-184. doi.org/10.1016/j.marpetgeo.2016.12.017 (D'Alessandro W., Yüce G., Italiano F., Bellomo S., Gülbay A.H., Yasin D.U., Gagliano A.L.) [81]. D'Alessandro et al. (2018b). Water chemistry and abiogenic methane content of a hyperalkaline spring related to serpentinization in the Argolida ophiolite (Ermioni, Greece). Marine and Petroleum Geology 89, 185-193. doi.org/10.1016/j.marpetgeo.2017.01.028 (D'Alessandro W., Daskalopoulou K., Calabrese S., Bellomo S.) [82]. Darling et al. (1995). The origin of hydrothermal and other gases in the Kenya Rift Valley. Geochimica et Cosmochimica Acta 59, 2501-2512. doi.org/10.1016/0016-7037(95)00145-X (Darling W.G., Griesshaber E., Armannsson H., O'Nions R.K.) [83]. Darrah et al. (2013). Gas chemistry of the Dallol region of the Danakil Depression in the Afar region of the northern-most East African Rift. Chemical Geology 339, 16-29. doi.org/10.1016/j.chemgeo.2012.10.036 (Darrah T.H., Tedesco D., Tassi F., Vaselli O., Cuoco E., Poreda R.J.) [84]. Darrah et al. (2015). The evolution of Devonian hydrocarbon gases in shallow aquifers of the northern Appalachian Basin: Insights from integrating noble gas and hydrocarbon geochemistry. Geochimica et Cosmochimica Acta 170, 321-355. doi.org/10.1016/j.gca.2015.09.006 (Darrah T.H., Jackson R.B., Vengosh A., Warner N.R., Whyte C.J., Walsh T.B., Kondash A.J., Poreda R.J.) [85]. Daskalopoulou et al. (2018). Origin of methane and light hydrocarbons in natural fluid emissions: A key study from Greece. Chemical Geology 479, 286–301. doi.org/10.1016/j.chemgeo.2018.01.027 (Daskalopoulou K., Calabrese S., Grassa F., Kyriakopoulos K., Parello F., Tassi F., D'Alessandro W.) [86]. Daskalopoulou et al. (2019). Degassing at the Volcanic/Geothermal System of Kos (Greece): Geochemical Characterization of the Released Gases and CO2 Output Estimation. Geofluids 2019, 3041037. doi.org/10.1155/2019/3041037 (Daskalopoulou K., Gagliano A.L., Calabrese S., Li Vigni L., Longo M., Kyriakopoulos K., Pecoraino G., D'Alessandro W.) [87]. Daskalopoulou et al. (2021). Insight Into Hartoušov Mofette, Czech Republic: Tales by the Fluids. Frontiers in Earth Science 9:615766, doi: 10.3389/feart.2021.615766. (Daskalopoulou K., Woith H., Zimmer M., Niedermann S., Barth J.A.C., Frank A.H., and 4 more authors) [88]. de Leeuw et al. (2007). The He–CO2 isotope and relative abundance characteristics of geothermal fluids in El Salvador and Honduras: New constraints on volatile mass balance of the Central American Volcanic Arc. Earth and Planetary Science Letters 258, 132-146. doi.org/10.1016/j.epsl.2007.03.028 (de Leeuw G.A.M., Hilton D.R., Fischer T.P., Walker J.A.) [89]. Defourny et al. (2022). 13C, CO2/3He and 3He/4He ratios reveal the presence of mantle gas in the CO2-rich groundwaters of the Ardennes massif (Spa, Belgium). Hydrology and Earth Science Systems 26, 2637-2648. doi.org/10.5194/hess-26-2637-2022 (Defourny A., Blard P-H., Zimmermann L., Jobé P., Collignon A., Nguyen F., Dassargues A.) [90]. Di Piazza et al. (2015). Geochemistry of the mantle source and magma feeding system beneath Turrialba volcano, Costa Rica. Lithos 232, 319-335. doi.org/10.1016/j.lithos.2015.07.012 (Di Piazza A., Rizzo A.L., Barberi F., Carapezza M.L., De Astis G., Romano C., Sortino F.) [91]. Duchkov et al. (2010). Estimation of heat flow in Tuva from data on helium isotopes in thermal mineral springs. Russian Geology and Geophysics 51, 209-219. doi.org/10.1016/j.rgg.2009.12.023 (Duchkov A.D., Rychkova K.M., Lebedev V.I., Kamenskii I.L., Sokolova L.S.) [92]. Edmunds et al. (2014). Noble gas, CFC and other geochemical evidence for the age and origin of the Bath thermal waters, UK. Applied Geochemistry 40, 155-163. doi.org/10.1016/j.apgeochem.2013.10.007 (Edmunds W.M., Darling W.G., Purtschert R., Corcho Alvarado J.A.) [93]. Engelhardt et al. (2022). Mantle helium in pore fluids of deep-sea sediments around the Azores archipelago. Chemical Geology 608, 121038. doi.org/10.1016/j.chemgeo.2022.121038 (Engelhardt Erennwald M.S., Maden C., Hansteen T.H., Schmidt C., Kipfer R.) [94]. Epstein et al. (2021). Cycling of CO2 and N2 along the Hikurangi subduction margin, New Zealand: An integrated geological, theoretical, and isotopic approach. Geochemistry Geophysics Geosystems 22, e2021GC009650. doi.org/10.1029/2021GC009650 (Epstein, G.S., Bebout, G.E., Christenson, B.W., Sumino, H., Wada, I., Werner, C., Hilton, D.R.) [95]. Escobar-Nakajima et al. (2022). Monitoring the magmatic activity and volatile fluxes of an actively degassing submarine caldera in southern Japan. Geochimica et Cosmochimica Acta 317, 106-117. doi.org/10.1016/j.gca.2021.10.023 (Nakajima M.T.E., Takahata N., Shirai K., Kagoshia T., Tanaka K., Obata H., Sano Y.) [96]. Etiope and Whiticar (2019). Abiotic methane in continental ultramafic rock systems: Towards a genetic model. Applied Geochemistry 102, 139-152. doi.org/10.1016/j.apgeochem.2019.01.012 (Etiope G., Whiticar M.J.) [97]. Evans et al. (2004). Magmatic intrusion west of Three Sisters, central Oregon, USA: The perspective from spring geochemistry. Geology 32, 69-72. doi.org/10.1130/G19974.1 (Evans W.C., van Soest M.C., Mariner R.H., Hurwitz S., Ingebritsen S.E., Wicks Jr. C.W., Schmidt M.E.) [98]. Evans et al. (2006). Geochemistry of low-temperature springs northwest of Yellowstone caldera: Seeking the link between seismicity, deformation, and fluid flow. Journal of Volcanology and Geothermal Research 154, 169-180. doi.org/10.1016/j.jvolgeores.2006.01.001 (Evans W.C., Bergfeld D., van Soest M.C., Huebner M.A., Fitzpatrick J., Revesz K.M.) [99]. Fan et al. (2019). Hydrogeochemical Characteristics and Genesis of Geothermal Water from the Ganzi Geothermal Field, Eastern Tibetan Plateau. Water 11, 1631. doi.org/10.3390/w11081631 (Fan Y., Pang Z., Liao D., Tian J., Hao Y., Huang T., Li Y.) [100]. Federico et al. (2002). Magma-derived gas influx and water-rock interactions in the volcanic aquifer of Mt. Vesuvius, Italy. Geochimica et Cosmochimica Acta 66, 963-981. doi.org/10.1016/S0016-7037(01)00813-4 (Federico C., Aiuppa A., Allard P., Bellomo S., Jean-Batpiste P., Parello F., Valenza M.) [101]. Feldbusch et al. (2018). Origin of gases from the geothermal reservoir Groß Schönebeck (North German Basin). Geothermics 71, 357-368. doi.org/10.1016/j.geothermics.2017.09.007 (Feldbusch E., Wiersberg T., Zimmer M., Regenspurg S.) [102]. Fiebig et al. (2004). Chemical and isotopic equilibrium between CO2 and CH4 in fumarolic gas discharges: Generation of CH4 in arc magmatic-hydrothermal systems. Geochimica et Cosmochimica Acta 68, 2321–2334. doi.org/10.1016/j.gca.2003.10.035 (Fiebig J., Chiodini G., Caliro S., Rizzo A., Spangenberg J., Hunziker J.C.) [103]. Fischer et al. (1997). The chemical and isotopic composition of fumarolic gases and spring discharges from Galeras Volcano, Colombia. Journal of Volcanology and Geothermal Research 77, 229-253. doi.org/10.1016/S0377-0273(96)00096-0 (Fischer T.P., Sturchio N.C., Stix J., Arehart G.B., Counce D., Williams S.N.) [104]. Fischer et al. (1998). Fluxes and sources of volatiles discharged from Kudryavy, a subduction zone volcano, Kurile Islands. Earth and Planetary Science Letters 160, 81-96. doi.org/10.1016/S0012-821X(98)00086-7 (Fischer T.P., Giggenbach W.F., Sano Y., Williams S.N.) [105]. Fischer et al. (2002). Subduction and Recycling of Nitrogen along the Central American Margin. Science 297, 1154-1157. doi.org/10.1126/science.1073995 (Fischer T.P., Hilton D.R., Zimmer M.M., Shaw A.M., Sharp Z.D., Walker J.A.) [106]. Fischer et al. (2015). Temporal variations in fumarole gas chemistry at Poás volcano, Costa Rica. Journal of Volcanology and Geothermal Research 294, 56-70. doi.org/10.1016/j.jvolgeores.2015.02.002 (Fischer T.P., Ramírez C., Mora-Amador R.A., Hilton D.R., Barnes J.D., Sharp J.D., Le Brun M., de Moor J.M., Barry P.H., Füri E., Shaw A.M.) [107]. Fischer et al. (2021). Gas Emissions from the Western Aleutians Volcanic Arc. Frontiers in Earth Science 9:786021. doi.org/10.3389/feart.2021.786021 (Fischer T.P., Lopez T.M., Aiuppa A., Rizzo A.L., Ilanko T., Kelley K.A., Cottrell E.) [108]. Fournier et al. (1994). Correlation of gold in siliceous sinters with 3He/4He in hot spring waters of Yellowstone National Park. Geochimica et Cosmochimica Acta 58, 5401-5419. doi.org/10.1016/0016-7037(94)90238-0 (Fournier R.O., Kennedy B.M., Aoki M., Thompson J.M.) [109]. Fourré et al. (2011). Regional variations in the chemical and helium–carbon isotope composition of geothermal fluids across Tunisia. Chemical Geology 288, 67-85. doi.org/10.1016/j.chemgeo.2011.07.003 (Fourré E., Di Napoli R., Aiuppa A., Parello F., Gaubi E., Jean-Baptiste P., Allard P., Calabrese S., Ben Mamou A.) [110]. Fu et al. (2021). An Automatic System for Continuous Monitoring and Sampling of Groundwater Geochemistry in Earthquake-Prone Regions of SW Taiwan. Frontiers in Earth Science 9:635913. doi: 10.3389/feart.2021.635913 (Fu C-C., Lai C-W., Yang T.F., Hilton D.R., Chen C-H., Walia V., Kumar A., Lee L-C.) [111]. Füri et al. (2010). Apparent decoupling of the He and Ne isotope systematics of the Icelandic mantle: The role of He depletion, melt mixing, degassing fractionation and air interaction. Geochimica et Cosmochimica Acta 74, 3307-3332. doi.org/10.1016/j.gca.2010.03.023 (Füri E., Hilton D.R., Halldórsson S.A., Barry P.H., Hahm D., Fischer T.P., Grnövold K.) [112]. Gamo et al. (2001). Chemical characteristics of newly discovered black smoker fluids and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge. Earth and Planetary Science Letters 193, 371-379. doi.org/10.1016/S0012-821X(01)00511-8 (Gamo T., Chiba H., Yamanaka T., Okudaira T., Hashimoto J., Tsuchida S., and 6 more authors) [113]. Geissler et al. (2005). Seismic structure and location of a CO2 source in the upper mantle of the western Eger (Ohre) Rift, central Europe. Tectonics 24, TC5001, doi:10.1029/2004TC001672. (Geissler W.H., Kämpf H., Kind R., Bräuer K., Klinge K., Plenefisch T., Horálek J., Zednik J., Nehybka V.) [114]. Gherardi et al. (2000). Water and gas geochemistry of the Euganean and Berician thermal district (Italy). Applied Geochemistry 15, 455-474. doi.org/10.1016/S0883-2927(99)00056-6 (Gherardi F., Panichi C., Caliro S., Magro G., Pennisi M.) [115]. Gherardi et al. (2022). Helium isotopes in Plinian and inter-Plinian volcanic products of Vesuvius, Italy. Frontiers in Earth Science 10:1011203 doi.org/10.3389/feart.2022.1011203 (Gherardi F., Barsanti M., Principe C., Magro G.) [116]. Giggenbach and Poreda (1993). Helium isotopic and chemical composition of gases from volcanichydrothermal systems in the Philippines. Geothermics 22, 369-380. doi.org/10.1016/0375-6505(93)90025-I (Giggenbach W.F., Poreda R.J.) [117]. Giggenbach et al. (1983). Isotopic and chemical composition of Parbati valley geothermal discharges, NorthWest Himalaya, India. Geothermics 13, 199-222. doi.org/10.1016/0375-6505(83)90030-5 (Giggenbach W.F., Gonfiantini R., Jangi B.L., Truesdell A.H.) [118]. Giggenbach et al. (1993). Isotopic composition of helium, and CO2 and CH4 contents in gases produced along the New Zealand part of a convergent plate boundary. Geochimica et Cosmochimica Acta 57, 3427-3455. doi.org/10.1016/0016-7037(93)90549-C (Giggenbach W.F., Sano Y., Wakita H.) [209]. Kulongoski et al. (2003). Helium isotope studies in the Mojave Desert, California: implications for groundwater chronology and regional seismicity. Chemical Geology 202, 95-113. doi.org/10.1016/j.chemgeo.2003.07.002 (Kulongoski J.T., Hilton D.R., Izbicki J.A.) [210]. Kulongoski et al. (2013). Volatile fluxes through the Big Bend section of the San Andreas Fault, California: Helium and carbon-dioxide systematics. Chemical Geology 339, 92-102. doi.org/10.1016/j.chemgeo.2012.09.007 (Kulongoski J.T., Hilton D.R., Barry P.H., Esser B.K., Hillegonds D., Belitz K.) [211]. Kusuda et al. (2014). Arima hot spring waters as a deep-seated brine from subducting slab. Earth, Planets and Space, 66-119. doi.org/10.1186/1880-5981-66-119 (Kusuda C., Iwamori H., Nakamura H., Kazahaya K., Morikawa N.) [212]. Labidi et al. (2021a). Recycling of nitrogen and light noble gases in the Central American subduction zone: Constraints from 15N 15N. Earth and Planetary Science Letters 571, 117112. doi.org/10.1016/j.epsl.2021.117112 (Labidi J., Young E.D., Fischer T.P., Barry P.H., Ballentine C.J., de Moor J.M.) [213]. Labidi et al. (2021b). Noble gas magmatic signature of the Andean Northern Volcanic Zone from fluid inclusions in minerals. Chemical Geology 559, 119966. doi.org/10.1016/j.chemgeo.2020.119966 (Lages J., Rizzo A.L., Aiuppa A., Samaniego P., Le Pennec J.L., Ceballos J.A., Narváez P.A., Moussallam Y., Bani P., Schipper C.I., Hidalgo S., Gaglio V., Alberti E., Sandoval-Velasquez A.) [214]. Lages et al. (2021) Noble gas magmatic signature of the Andean Northern Volcanic Zone from fluid inclusions in minerals. Chemical Geology 559, 119966. doi.org/10.1016/j.chemgeo.2020.119966 (Lages J., Rizzo A.L., Aiuppa A., Samaniego P., Le Pennec J.L., Ceballos J.A., Narváez P.A., Moussallam Y., Bani P., Schipper C.I., Hidalgo S., Gaglio V., Alberti E., Sandoval-Velasquez A.) [215]. Lan et al. (2007). Compositions and flux of soil gas in Liu-Huang-Ku hydrothermal area, northern Taiwan. Journal of Volcanology and Geothermal Research 165, 32-45. doi.org/10.1016/j.jvolgeores.2007.04.015 (Lan T.F., Yang T.F., Lee S-F., Chen Y-C., Chen C-H., Song S-R., Tsao S.) [216]. Landa-Arreguín et al. (2023). Hydrogeochemistry and isotopic assessment of a new geothermal prospect in rancho Nuevo (Guanajuato-Central Mexico). Journal of Geochemical Exploration 253, 107294. doi.org/10.1016/j.gexplo.2023.107294 (Landa-Arreguín J.F.A., Villanueva-Estrada R.E., MoralesArredondo J.I., Inguaggiato S., Rodríguez-Díaz A.A., Pérez-Martínez I., Rocha-Miller R., Bernard-Romero R., Tello-Hinojosa E.) [217]. Lavrushin et al. (2007). The 3He/4He halo of the Kazbek Volcanic Center, Northern Caucasus. Doklady Earth Sciences 414, 605-608. doi.org/10.1134/S1028334X07040253 (Lavrushin V.Y., Polyak B.G., Strizhov V.P., Italiano F., Rizzo A.) [218]. Lavrushin et al. (2009). Isotopic–Geochemical Peculiarities of Gases in Mud Volcanoes of Eastern Georgia. Lithology and Mineral Resources 44, 183-197. doi.org/10.1134/S0024490209020060 (Lavrushin V.Y., Polyak B.G., Pokrovslii B.G., Kopp M.L., Buachidze G.I., Lamenskii I.L.) [219]. Lee et al. (2017). Incipient rifting accompanied by the release of subcontinental lithospheric mantle volatiles in the Magadi and Natron basin, East Africa. Journal of Volcanology and Geothermal Research 346, 118–133. doi.org/10.1016/j.jvolgeores.2017.03.017 (Lee H., Fischer T.P., Muirhead J.D., Ebinger C.J., Kattenhorn S.A., Sharp Z.D., and 3 other authors) [220]. Lee et al. (2019). Mantle degassing along strike-slip faults in the Southeastern Korean Peninsula. Scientific Reports 9, 15334. doi.org/10.1038/s41598-019-51719-3 (Lee H., Kim H., Kagoshima T., Park J-O., Takahata N., Sano Y.) [221]. Lee et al. (2021). Variations of Temperature, Chemical Component and Helium Gas of Geothermal Water by Earthquake Events in Pohang Area. The Journal of Engineering Geology 31, 647-658. doi.org/10.9720/kseg.2021.4.647 (Lee Y.C., Jeong C.H., Lee Y.J., Kim Y-S., Kang T-S.) [222]. Lésniak et al. (1997). Mantle helium signal in the West Carpathians, Poland. Geochemical Journal 31, 383394. doi.org/10.2343/geochemj.31.383 (Leśniak P.M., Sakai H., Ishibashi J-I., Wakita H.) [223]. Lewicki et al. (2000). Chemical and isotopic compositions of fluids at Cumbal Volcano, Colombia: evidence for magmatic contribution. Bullettin of Volcanology 62, 347-361. doi.org/10.1007/s004450000100 (Lewicki J.L., Fischer T., Williams S.N.) [224]. Lewicki et al. (2013). Geologic CO2 input into groundwater and the atmosphere, Soda Springs, ID, USA. Chemical Geology 339, p. 61–70. doi.org/10.1016/j.chemgeo.2012.06.013 (Lewicki J.L., Hilley G.E., Dobeck L., McLing T.L., Kennedy B.M., Bill M., Marino B.D.V.) [225]. Lewicki et al. (2023). Geochemistry and fluxes of gases from hydrothermal features at Newberry Volcano, Oregon, USA. Journal of Volcanology and Geothermal Research 433, 107729. doi.org/10.1016/j.jvolgeores.2022.107729 (Lewicki J.L., Evans W.C., Ingebritsen S.E., Clor L.E., Kelly P.J., Peek S., Jense R.A., Hunt A.G.) [226]. Li et al. (2022). Spring Gas Geochemistry in the Weixi-Qiaohou Fault Zone: Understanding the Fluid Characteristics of the Western Boundary of the Sichuan-Yunnan Rhombic Block. Geochemistry International 60, 109-121. doi.org/10.1134/S0016702921150027 (Li Q., Zhao C., Wang Y., Zhou Y., Ran H.) [227]. Li et al. (2023). Geochemical features and seismic imaging of the tectonic zone between the Tibetan Plateau and Ordos Block, central northern China. Chemical Geology 622, 121386. doi.org/10.1016/j.chemgeo.2023.121386 (Li Y., Chen Z., Sun A., Liu Z., Caracausi A., Martinelli G., Lu C.) [228]. Liang et al. (2023). Geothermal springs with high δ13CCO2-DIC along the Xianshuihe fault, Western Sichuan, China: A geochemical signature of enhanced deep tectonic activity. Journal of Hydrology 623, 129760. doi.org/10.1016/j.jhydrol.2023.129760 (Liang J., Yu Y., Shi Z., Li Z., Huang Y., Song H., and 7 more authors) [229]. Liao et al. (2023). Gas geochemistry of the hot springs gas in Fujian province, SE China: insight into the deep faults and seismic activity. Front. Earth Sci. 11:1277100. doi.org/10.3389/feart.2023.1277100 (Liao L., Zhou Y., Lin Z., Wang X., Chen W., Li J., Zheng C., Yu W., Li X., Liu J.) [230]. Lippmann-Pipke et al. (2011). Geogas transport in fractured hard rock – Correlations with mining seismicity at 3.54 km depth, TauTona gold mine, South Africa. Applied Geochemistry 26, 2134-2146. doi.org/10.1016/j.apgeochem.2011.07.011 (Lippmann-Pipke J., Erzinger J., Zimmer M., Kujawa C., Boettcher M., van Heerden E., Bester A., Moller H., Stroncik N.A., Reches Z.) [231]. Liu et al. (2023). Hydrothermal He and CO2 degassing from a Y-shaped active fault system in eastern Tibetan Plateau with implications for seismogenic processes. Journal of Hydrology 620, 129482. doi.org/10.1016/j.jhydrol.2023.129482 (Liu W., Zhang M., Chen B., Liu Y., Cao C., Xu W., Zheng G., Zhou X., Lang Y-C., Sano Y., Xu S.) [232]. Liuzzo et al. (2022). The composition of gas emissions at Petite Terre (Mayotte, Comoros): inference on magmatic fingerprints. Comptes Rendus -Géoscience - Sciences de la Planète 354, 275-298. doi.org/10.5802/crgeos.148 (Liuzzo M., Di Muro A., Rizzo A.L., Grassa F., Coltorti M., Ader M.) [233]. Luo et al. (2014). Origins of gas discharging from the Qiangtang Basin in the northern Qinghai–Tibet Plateau, China: Evidence from gas compositions, helium, and carbon isotopes. Journal of Geochemical Exploration 146, 119-126. doi.org/10.1016/j.gexplo.2014.08.006 (Luo M., Huang H., Zhang P., Wu Q., Chen D.) [234]. Luo et al. (2023). Earthquakes evoked by lower crustal flow: Evidence from hot spring geochemistry in Lijiang-Xiaojinhe fault. Journal of Hydrology 619, 129334. doi.org/10.1016/j.jhydrol.2023.129334 (Luo Z., Zhou X., He M., Liang J., Li J., Dong J., and 9 more authors) [235]. Lupton (1983). Terrestrial inert gases: isotope tracers studies and clues to primordial components in the mantle. Annual Review in Earth Planetary Sciences 11, 371-414. doi.org/10.1146/annurev.ea.11.050183.002103 (Lupton J.E. ) [236]. Lupton et al. (1989). Variable 3He/heat ratios in submarine hydrothermal systems: evidence from two plumes over the Juan de Fuca ridge. Nature 337, 161164. doi.org/10.1038/337161a0 (Lupton J.E., Baker E.T., Massoth G.J.) [237]. Lupton et al. (2015). Helium isotope, C/3He, and Ba-Nb-Ti signatures in the northern Lau Basin: Distinguishing arc, back-arc, and hotspot affinities. Geochemistry Geophysics Geosystems 16, 1133–1155. doi.org/10.1002/2014GC005625 (Lupton J., Rubin K.H., Arculus R., Lilley M., Butterfield D., Resing J., Baker E., Embley R.) [238]. Lysak and Pisarski (1999). Heat flow assessments based on He isotopes in gases from groundwaters of the Baikal rift zone and surrounding areas. Vulcanologiya I Seismologiya 3, 45-55. http://repository.geologyscience.ru:8080/xmlui/handle/123456789/22614 (Lysak S.V. and Pisarsky B.I.) [239]. Ma et al. (2023). Geochemical characteristics of natural springs within the Lenglongling fault zone related to the Menyuan Ms 6.9 earthquake on January 8, 2022, NW China. Applied Geochemistry 158, 105767. doi.org/10.1016/j.apgeochem.2023.105767 (Ma X., Zhang L., Chen Z., Shao Y., Chen J., Ba R., and 5 other authors) [240]. Magro et al. (2003). Helium isotopes in paleofluids and present-day fluids of the Larderello geothermal field: Constraints on the heat source. Journal of Geophysical Research 108, B1, ECV 3-1-ECV 3-12. doi.org/10.1029/2001JB001590 (Magro G., Ruggieri G., Gianelli G., Bellani S.) [241]. Magro et al. (2013). Noble and reactive gases of Palinpinon geothermal field (Philippines): Origin, reservoir processes and geodynamic implications. Chemical Geology 339, 4-15. doi.org/10.1016/j.chemgeo.2012.09.036 (Magro G., Gherardi F., Bayon F.E.B.) [242]. Maldonado et al. (2017). Volatiles and energy released by Puracé volcano. Bulletin of Volcanology 79, 84. doi.org/10.1007/s00445-017-1168-y (Maldonado L.F.M., Inguaggiato S., Jaramillo M.T., Valencia G.G., Mazot A.) [243]. Marques et al. (2019). Assessment of Chaves low-temperature CO2-rich geothermal system (N-Portugal) Using an interdisciplinary geosciences approach. Geofluids 2019, 1379093, doi.org/10.1155/2019/1379093 (Marques J.M., Carreira P.M., Aires-Barros L.A., Monteiro Santos F.A., Antunes da Silva M., Represas P.) [244]. Martel et al. (1989). Leakage of helium from the Pannonian basin. Nature 342, 908-912. doi.org/10.1038/342908a0 (Martel D.J., Deák J., Dövenyi P., Horváth F., O'Nions R.K., Oxburgh E.R., Stegena L., Stute M.) [245]. Marty et al. (1989). Helium isotopes and CO2 in volcanic gases of Japan. Chemical Geology 76, 25-40. doi.org/10.1016/0009-2541(89)90125-3 (Marty B., Jambon A., Sano Y.) [246]. Marty et al. (1991). Gas geochemistry of geothermal fluids, the Hengill area, southwest rift zone of Iceland. Chemical Geology 91, 207-225. doi.org/10.1016/0009-2541(91)90001-8 (Marty B., Gunnlaugsson E., Jambon A., Oskarsson N., Ozima M., Pineau F., Torssander P.) [247]. Marty et al. (1992). Helium isotopes in Alpine regions. Tectonophysics 206, 71-78. doi.org/10.1016/00401951(92)90368-G (Marty B., O'Nions R.K., Oxburgh E.R., Martel D., Lombardi S.) [248]. Marty et al. (1993). Helium isotope fluxes and groundwater ages in the Dogger aquifer, Paris Basin. Water Resources Research 29, 1025-1035. doi.org/10.1029/93WR00007 (Marty B., Torgersen T., Meynier V., O'Nions R.K., de Marsily G.) [249]. Marty et al. (1994). He, Ar, O, Sr and Nd isotope constraints on the origin and evolution of Mount Etna magmatism. Earth and Planetary Science Letters 126, 23-39. doi.org/10.1016/0012-821X(94)90240-2 (Marty B., Trull T., Lussiez P., Basile I., Tanguy J.C.) [250]. Matsumoto et al. (2018). Application of combined 81Kr and 4He chronometers to the dating of old groundwater in a tectonically active region of the North China Plain. Earth and Planetary Science Letters 493, 208-217. doi.org/10.1016/j.epsl.2018.04.042 (Matsumaoto T., Chi S-H., Zhang X.) [251]. Matthews et al. (1987). Mantle-derived volatiles in continental crust: the Massif Central of France. Earth and Planetary Science Letters 85, 117-128. doi.org/10.1016/0012-821X(87)90026-4 (Matthews A., Fouillac C., Hill R., O'Nions R.K., Oxburgh E.R.) [252]. Mayo and Muller (1997). Low temperature diagenetic–metamorphic and magmatic contributions of external CO2 gas to a shallow ground water system. Journal of Hydrology 194, 286–304. doi.org/10.1016/S00221694(96)03215-5 (Mayo A.L., Muller A.B.) [253]. Mazzini et al. (2011). Fluid origin, gas fluxes and plumbing system in the sediment-hosted Salton Sea Geothermal System (California, USA). Journal of Volcanology and Geothermal Research 205, 67-83. doi.org/10.1016/j.jvolgeores.2011.05.008 (Mazzini A., Svensen H., Etiope G., Onderdonk N., Banks D.) [254]. Méjan et al. (2020). Mantle helium in Southern Québec groundwater: A possible fossil record of the New England hotspot. Earth and Planetary Science Letters 545, 116352. doi.org/10.1016/j.epsl.2020.116352 (Méjean P., Pinti D.L., Kagoshima T., Roulleau E., Demarets L., Poirier A., Takahata N., Sano Y., Larocque M.) [255]. Melián et al. (2021) Geochemistry of Water and Gas Emissions from Cuicocha and Quilotoa Volcanic Lakes, Ecuador. Frontiers in Earth Science 9:741528. doi: 10.3389/feart.2021.741528 (Melián G.V., Toulkeridis T., Pérez N.M., Hernández P.A:, Somoza L., Padrón E., Amonte C., Alonso M., Asensio-Ramos M., Cordero M.) [256]. Meng et al. (2021). Mantle-Derived Helium Distribution and Tectonic Implications in the Sichuan−Yunnan Block, China. ACS Omega 6, 30674-30685. doi.org/10.1021/acsomega.1c04533 (Meng B., Zhou S., Li J., Sun Z.) [257]. Menzies et al. (2016). The fluid budget of a continental plate boundary fault: Quantification from the Alpine Fault, New Zealand. Earth and Planetary Science Letters 445, 125-135. doi.org/10.1016/j.epsl.2016.03.046 (Menzies C.D., Teagle D.A.H., Niedermann S., Cox S.C., Craw D., Zimmer M., Cooper M.J., Erzinger J.) [258]. Merlivat et al. (1987). Hydrothermal vent waters at 13°N on the East Pacific Rise: isotopic composition and gas concentration. Earth and Planetary Science Letters 84, 100-108. doi.org/10.1016/0012-821X(87)90180-4 (Merlivat L., Pineau F., Javoy M.) [259]. Milesi et al. (2024). Origin of Helium and Associated Fluid in Fault-Related Hydrothermal Systems of the Eastern Pyrenees. Terra Nova 2024; 0:1-10. doi.org/10.1111/ter.12753 (Milesi G., Dantas Cardoso C., Pik R., Moreira M., Charpentier D., Mercadier J.) [260]. Minissale et al. (1999). The origin of natural gas emissions from Sardinia island, Italy. Geochemical Journal 33, 1-12. doi.org/10.2343/geochemj.33.1 (Minissale A., Magro G., Tassi F., Frau F., Vaselli O.) [261]. Minissale et al. (2000a). Fluid geochemical transect in the Northern Apennines (central-northern Italy); fluid genesis and migration and tectonic implications. Tectonophysics 31, 199-222. doi.org/10.1016/S00401951(00)00031-7 (Minissale A., Magro G., Martinelli G., Vaselli J., Tassi G.F.) [262]. Minissale et al. (2000b). Origin and evolution of “intracratonic” thermal fluids from central-western peninsular India. Earth and Planetary Science Letters 181, 377-394. doi.org/10.1016/S0012-821X(00)00200-4 (Minissale A., Vaselli O., Chandrasekharam D., Magro G., Tassi F., Casiglia A.) [263]. Minissale et al. (2002). Fluid mixing in carbonate aquifers near Rapolano (central Italy): chemical and isotopic constraints. Applied Geochemistry 17, 1329-1342. doi.org/10.1016/S0883-2927(02)00023-9 (Minissale A., Vaselli O., Tassi F., Magro G., Grechi G.P.) [264]. Minissale et al. (2007). Thermal springs, fumaroles and gas vents of continental Yemen: Their relation with active tectonics, regional hydrology and the country’s geothermal potential. Applied Geochemistry 22, 799820. doi.org/10.1016/j.apgeochem.2006.11.009 (Minissale A., Mattash M.A., Vaselli O., Tassi F., AlGanad I.N., Selmo E., Shawki N.M., Tedesco D., Poreda R., Ad-Dukhain A.M., Hazzae M.K.) [265]. Minissale et al. (2008). The Tianjin geothermal field (north-eastern China): Water chemistry and possible reservoir permeability reduction phenomena. Geothermics 37, 400-428. doi.org/10.1016/j.geothermics.2008.03.001 (Minissale A., Borrini D., Montegrossi G., Orlando A., Tassi F., Vaselli O., Delgado Huertas A., Yang J., Cheng W., Tedesco D., Poreda R.) [266]. Minissale et al. (2017). Geothermal potential and origin of natural thermal fluids in the northern Lake Abaya area, Main Ethiopian Rift, East Africa. Journal of Volcanology Geothermal Research 336, 1-18. doi.org/10.1016/j.jvolgeores.2017.01.012 (Minissale A., Corti G., Tassi F., Darrah T.H., Vaselli O., Montanari D., Montegrossi G., Yirgu G., Selmo E., Teclu A.) [267]. Mohammed et al. (2022). Mantle-derived fluids in the continental-scale Nubian aquifer. Chemical Geology 608, 121023. doi.org/10.1016/j.chemgeo.2022.121023 (Mohammed A.M., Crossey L.J., Karlstrom K.E., Krishnamurthy R.V., Kehew A.E., Darrah T.H., Emry E.L.) [268]. Mollex et al. (2018). Tracing helium isotope compositions from mantle source to fumaroles at Oldoinyo Lengai volcano, Tanzania. Chemical Geology 480, 66-74. doi.org/10.1016/j.chemgeo.2017.08.015 (Mollex G., Füri E., Burnard P., Zimmermann L., Chazot G., Kazimoto E.O., Marty B., France L.) [269]. Moreira et al. (2019). New insights into the plumbing system of Santorini using helium and carbon isotopes. Geochemical Perspective Letters 10, 46-50. doi.org/10.7185/geochemlet.1914 (Moreira M., Escartin J., Scelin L., Ruzié-Hamilton L., Nomikou P., Mével C., Andreani M.) [270]. Morikawa et al. (2005). Estimation of groundwater residence time in a geologically active region, by coupling 4He-concentration with helium isotopic ratios. Geophysical Research Letters 32, L02406, doi:10.1029/2004GL021501. (Morikawa N., Kazahaya K., Yasuhara M., Inamura A., Nagao K., Sumino H., Ohwada M.) [271]. Morikawa et al. (2008a). Magmatic He distribution around Unzen volcano inferred from intensive investigation of helium isotopes in groundwater. Journal of Volcanology and Geothermal Research 175, 218230. doi.org/10.1016/j.jvolgeores.2008.03.038 (Morikawa N, Kazahaya K., Fourre E., Takahashi H.A., Jean-Baptiste P., Ohwada M., LeGuern F.J., Nakama A.) [272]. Morikawa et al. (2008b). Relationship between geological structure and helium isotopes in deep groundwater from the Osaka Basin: Application to deep groundwater hydrology. Geochemical Journal 42, 61-74. doi.org/10.2343/geochemj.42.61 (Morikawa N., Kazahaya K., Masuda H., Ohwada M., Nakama A., Nagao K., Sumino H.) [273]. Motyka et al. (1989). Geochemistry, isotopic composition, and origin of fluids emanating from mud volcanoes in the Copper River basin, Alaska. Geochimica et Cosmochimica Acta 53, 29-41. doi.org/10.1016/00167037(89)90270-6 (Motyka R.J., Poreda R.J., Jeffrey A.W.A.) [274]. Mtili et al. (2021). The origin of high helium concentrations in the gas fields of southwestern Tanzania. Chemical Geology 585, 120542. doi.org/10.1016/j.chemgeo.2021.120542 (Mtili K.M., Byrne D.J., Tyne R.L., Kazimoto E.O., Kimani C.N., Kasanzu C.H., Hillegonds D.J., Ballentine C.J., Barry P.H.) [275]. Muller et al. (2020). The Origin of Continental Carbonates in Andean Salars: A Multi-Tracer Geochemical Approach in Laguna Pastos Grandes (Bolivia). Geochimica et Cosmochimica Acta 279, 220-237. doi.org/10.1016/j.gca.2020.03.020 (Muller E., Gaucher E.C., Durlet C., Moquet J.S., Moreira M., Rouchon V., Louvat P., Bardoux G., Noirez S., Bougeault C., Vennin E., Gérard E., Chavez M., Virgone A., Ader M.) [276]. Mutlu et al. (2008). Helium–carbon relationships in geothermal fluids of western Anatolia, Turkey. doi.org/10.1016/j.chemgeo.2007.10.021 Chemical Geology 247, 305-321. (Mutlu H., Güleç N., Hilton D.R.) [277]. Nagao et al. (1979). Isotopic anomalies of rare gases in the Nigorikawa geothermal area, Hokkaido, Japan. Earth and Planetary Science Letters 44, 82-90. doi.org/10.1016/0012-821X(79)90010-4 (Nagao K., Takaoka N., Matsubayashi O.) [278]. Nagao et al. (1981). Rare gas isotopic composition in natural gases of Japan. Earth and Planetary Science Letters 53, 175-188. doi.org/10.1016/0012-821X(81)90152-7 (Nagao K., Takaoka N., Matsubayashi O.) [279]. Nagao et al. (2010). Noble gases in Lakes Nyos and Monoun, Cameroon. Geochemical Journal 44, 519-543. doi.org/10.2343/geochemj.1.0101 (Nagao K., Kusasabe M., Yoshida Y., Tanyleke G.) [280]. Nakai et al. (1997). MORB-type neon in an enriched mantle beneath Etna, Sicily. Earth and Planetary Science Letters 153, 57-66. doi.org/10.1016/S0012-821X(97)00161-1 (Nakai S., Wakita H., Nuccio M.P., Italiano F:) [281]. Nencetti et al. (2005). Chemical and isotopic study of thermal springs and gas discharges from Sierra de Chiapas, Mexico. Geofisica International 44, 39-48. doi.org/10.22201/igeof.00167169p.2005.44.1.551 (Nencetti A., Tassi F., Vaselli O., Macías J.L., Magro G., Capaccioni B., Minissale A., Mora J.C.) [282]. Neuholz et al. (2020). Submarine Hydrothermal Discharge and Fluxes of Dissolved Fe and Mn, and He Isotopes at Brothers Volcano Based on Radium Isotopes. Minerals 10, 969; doi:10.3390/min10110969. (Neuholz R., Kleint C., Schnatger B., Koschinsky A., Laan P., Middag R., Sander S., Thal J., Türke A., Walter M., Zitoun R., Brumsack H-J.) [283]. Newell et al. (2005). Continental-scale links between the mantle and the groundwater systems of the western United States: Evidence from travertine springs and regional He isotope data. GSA Today 15, doi:10:1130/1052-5173(2005)015<4:CSLBTM>2/0/CO;2. (Newell D.L., Crossey L.J., Karlstrom K.E., Fischer T. P., Hilton D.R.) [284]. Newell et al. (2015). Mantle-derived helium in hot springs of the Cordillera Blanca, Peru: Implications for mantle-to-crust fluid transfer in a flat-slab subduction setting. Chemical Geology 417, 200-209. doi.org/10.1016/j.chemgeo.2015.10.003 (Newell D.L., Jessup M.J., Hilton D.R., Shaw C.A., Hughes C.A.) [285]. Nisi et al. (2019). The Campo de Calatrava Volcanic Field (central Spain): Fluid geochemistry in a CO2-rich area. Applied Geochemistry 102, 153-170. doi.org/10.1016/j.apgeochem.2019.01.011 (Nisi B., Vaselli O., Elio J., Giannini L., Tassi F., Guidi M., Darrah T.H., Maletic E.L., Delgado Huertas A., Marchionni S.) [286]. Notsu et al. (2001). Spatial distribution and temporal variation of 3He/4He in hot spring gas released from Unzen volcanic area, Japan. Journal of Volcanology and Geothermal Research 111, 89-98. doi.org/10.1016/S0377-0273(01)00221-9 (Notsu K., Nakai S., Igarashi G., Ishibashi J., Mori T., Suzuki M., Wakita H.) [287]. Notsu et al. (2014). Leakage of magmatic–hydrothermal volatiles from a crater bottom formed by a submarine eruption in 1989 at Teishi Knoll, Japan. Journal of Volcanology and Geothermal Research 270, 90-98. doi.org/10.1016/j.jvolgeores.2013.11.017 (Notsu K., Sohrin R., Wada H., Tsuboi T., Sumino H., Mori T., Tsunogai U., Hernandez P.A., Suzuki Y., Ikuta R., Oorui K., Koyama M., Masuda T., Fujii N.) [288]. Nuzzo et al. (2019). Formation and migration of hydrocarbons in deeply buried sediments of the Gulf of Cadiz convergent plate boundary - Insights from the hydrocarbon and helium isotope geochemistry of mud volcano fluids. Marine Geology 410, 56-69. doi.org/10.1016/j.margeo.2019.01.005 (Nuzzo M., Tomonaga Y., Schmidt M., Valadares V., Faber E., Piñero E., and other 7) [289]. Obase et al. (2022). Monitoring of magmatic–hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases. Scientific Reports 12, 17967. doi.org/10.1038/s41598-022-22280-3 (Obase T., Sumino H., Toyama K., Kawana K., Yamane K., Yaguchi M., Terada A., Ohba T.) [290]. Volcanology and Geothermal Research 199, 118-126. doi.org/10.1016/j.jvolgeores.2010.11.001 (Ohno M., Sumino H., Hernandez P.A., Sato T., Nagao K.) [291]. Okada et al. (1994). Noble gas isotopic composition of deep underground water in Osaka plain, central Japan: Evidence for mantle He and model for new volcanism. Island Arc 3, 221-231. doi.org/10.1111/j.14401738.1994.tb00108.x (Okada T., Itaya T., Sato M., Nagao K.) [292]. O'Nions et al. (1989). Rocks that are too hot to handle. Nature 341, 391. doi.org/10.1038/341391a0 (O'Nions R.K., Griesshaber E., Oxburgh E.R.) [293]. Oxburgh et al. (1986). Helium isotopes in sedimentary basins. Nature 324, 632-635. doi.org/10.1038/324632a0 (Oxburgh E.R., O'Nions R.K., Hill R.I.) [294]. Ozyurt and Bayari (2018). Evolution of noble gas and water isotopes along the regional groundwater flow path of the Konya Closed Basin, Turkey. International Journal of Speleology 47, 333-342. doi.org/10.5038/1827806X.47.3.2176 (Ozyurt N.N., Bayari C.S.) [295]. Padrón et al. (2015). Geochemical evidence of different sources of long-period seismic events at Deception volcano, South Shetland Islands, Antarctica. Antarctic Science 27, 557-565. doi.org/10.1017/S0954102015000346 (Padrón E., Hernández P.A., Carmona E., Pérez N.M., Melián G., Sumino H., Almendros J., Kusasabe M., Wakita H., Padilla G.D.) [296]. Palcsu et al. (2014). In-reservoir mixing of mantle-derived CO2 and metasedimentary CH4-N2 fluids - Noble gas and stable isotope study of two multistacked fields (Pannonian Basin System, W-Hungary). Marine and Petroleum Geology 54, 216-227. doi.org/10.1016/j.marpetgeo.2014.03.013 (Palcsu L., Vető I., Vodila G., Papp L., Major Z.) [297]. Pang et al. (2018). Geochemical and isotopic characteristics of fluids in the Niutuozhen geothermal field, North China. Environmental Earth Sciences 77:12. doi.org/10.1007/s12665-017-7171-y (Pang J., Pang Z., Lv M., Tian J., Kong Y.) [298]. Parello et al. (2000). Isotope geochemistry of Pantelleria volcanic fluids, Sicily Channel rift: a mantle volatile end-member for volcanism in southern Europe. Earth and Planetary Science Letters 180, 325-339. doi.org/10.1016/S0012-821X(00)00183-7 (Parello F., Allard P., D'Alessandro W., Federico C., JeanBaptiste P., Catani O.) [299]. Park et al. (2016). Hydrochemistry and noble gas geochemistry of geothermal waters in Chungcheong Province, South Korea. Geochemical Journal 50, 89-103. doi.org/10.2343/geochemj.2.0388 Park J., Jeong C.H., Nagao K., Yang J.H., Sumino H., Kim K.H., Kim M.S., Lee J.I., Park C.H., Koh Y.K.,Hur S.D.) [300]. Parsasadr et al. (2021). Hydrochemical, isotopic, and dissolved gas characterization of groundwater in Gariz aquifer, Southwest of Yazd Province, central Iran. Journal of Volcanology and Geothermal Research 418, 107324. doi.org/10.1016/j.jvolgeores.2021.107324 (Parsasadr H., Nassery H.R., Capasso G., Alijani F., Caracausi A.) [301]. Paternoster et al. (2017). Geochemistry of two contrasting deep fluids in the Sardinia microplate (western Mediterranean): Relationships with tectonics and heat sources. Journal of Volcanology and Geothermal Research 336, 108-117. doi.org/10.1016/j.jvolgeores.2017.02.011 (Paternoster M., Oggiano G., Sinisi R., Caracausi A., Mongelli G.) [302]. Patterson et al. (1997). Helium isotopic composition of the Tabar-Lihir-Tanga-Feni island Arc, Papua New Guinea. Geochimica et Cosmochimica Acta 64, 2485-2496. doi.org/10.1016/S0016-7037(97)00095-1 (Patterson, D.B., Farley, K.A., McInnes, B.I.A.) [303]. Pecoraino and Giammanco (2005). Geochemical characterization and temporal changes in parietal gas emissions at Mt.Etna (Italy) during the period July 2000 July 2003. Terrestirial, Atmospheric and Oceanic Sciences 16, 805-842. doi.org/10.3319/TAO.2005.16.4.805(GIG) (Pecoraino G. and Giammanco S.) [304]. Pedroni et al. (1999). He, Ne, Ar, and C isotope systematics of geothermal emanations in the Lesser Antilles Islands Arc. Geochimica et Cosmochimica Acta 63, 515–532. doi.org/10.1016/S0016-7037(99)00018-6 (Pedroni A., Hammerschmidt K., Friedrichsen H.) [305]. Peiffer et al. (2024). Geochemistry of coastal geothermal systems from southern Baja California peninsula (Mexico): Fluid origins, water-rock interaction and tectonics. Chemical Geology 670, 122316. doi.org/10.1016/j.chemgeo.2024.122316 (Peiffer L., Inguaggiato C., Wurl J., Fletcher J.M., Olguín Martínez M.G., Carbajal Martínez D., Legrand D., and other 5 authors) [306]. Pérez et al. (1996a). Helium-3 emission in and around Teide volcano, Canary Islands. Geophysical Research Letters 23,3531–3534. doi.org/10.1029/96GL03470 (Pérez N.M., Nakai S., Wakita H., Hernández P.A., Salazar J.M.) [307]. Pérez et al. (1996b). Preliminary results on 3He/4He isotopic ratios in terrestrial fluids from Iberian peninsula: seismotectonic and neotectonic implications. Geogaceta 20, 830-833. ISSN:0213683X (Pérez N.M., Nakai S., Wakita H., Albert-Bertrán J.F., Redondo R.) [308]. Pik and Marty (2009). Helium isotopic signature of modern and fossil fluids associated with the Corinth rift fault zone (Greece): Implication for fault connectivity in the lower crust. Chemical Geology 266, 67-75. doi.org/10.1016/j.chemgeo.2008.09.024 (Pik R., Marty B.) [309]. Pik et al. (2006). How many mantle plumes in Africa? The geochemical point of view. Chemical Geology 226, 100-114. https://doi.org/10.1016/j.chemgeo.2005.09.016 (Pik R., Marty B., Hilton D.R.) [310]. Pinneker et al. (1995). Isotopic study of mineral waters of Mongolia. Geology and Geophysics 36, 94-102. doi.org/10.2113/rgg.1995.36.1.89 (Pinneker E.V., Pissarskiy B.I., Pavlova S.E., Lepin V.S.) [311]. Pinti et al. (2011). Fossil brines preserved in the St-Lawrence Lowlands, Québec, Canada as revealed by their chemistry and noble gas isotopes. Geochimica et Cosmochimica Acta 75, 4228-4243. doi.org/10.1016/j.gca.2011.05.006 (Pinti D.L., Béland-Otis C., Tremblay A., Castro M.C., Hall C.M., Marcil J-S., Lavoie J-Y., Lapointe R.) [312]. Pinti et al. (2013). Evolution of the geothermal fluids at Los Azufres, Mexico, as traced by noble gas isotopes, 18O, D,  13C and 87Sr/86Sr. Journal of Volcanology and Geothermal Research 249, 1-11. doi.org/10.1016/j.jvolgeores.2012.09.006 (Pinti D.L., Castro M.C., Shoukar-Stash O., Tremblay A., Carduño V.H., Hall C.M., Hélie J.F., Ghaleb B.) [313]. Pinti et al. (2019). Cerro Prieto Geothermal Field (Baja California, Mexico) – A fossil system? Insights from a noble gas study. Journal of Volcanology and Geothermal Research 371, 32-45. doi.org/10.1016/j.jvolgeores.2018.12.010 (Pinti D.L., Castro M.C., Lόpez-Hernández A., Hernández Hernández M.A., Richard L., Hall C.M., Shouakar-Stash O., Flores-Armenta M., Rodríguez-Rodríguez M.H.) [314]. Pinti et al. (2021). Origin of volatile species and aqueous fluids in the Los Humeros Geothermal Field, Mexico. Chemical Geology 584, 120539. doi.org/10.1016/j.chemgeo.2021.120539 (Pinti D.L., Castro M.C., LόpezHernández A., Hernández-Hernández M.A., Shouakar-Stash O., Hall C.M., Bahena-Romero J., RamírezMontes M.) [315]. Piperov et al. (1994). Isotopes of the light noble gases in mineral waters in the eastern part of the Balkan peninsula, Bulgaria. Geochimica et Cosmochimica Acta 58, 1889-1998. doi.org/10.1016/0016-7037(94)904227 (Piperov N.B., Kamensky I.L., Tolstikhin I.N.) [316]. Podugu et al. (2019). Chemical and Noble Gas Isotope Compositions of Formation Gases from a 3km Deep Scientific Borehole in the Koyna Seismogenic Zone, Western India. Geofluids 1078942. doi.org/10.1155/2019/1078942 (Podugu N., Mishra S.., Wiersberg T., Roy S.) [317]. Polyak (2003). Helium isotopes in the ground fluids of the Baikal Rift and its surroundings: Contribution to continental rifting geodynamics. Russian Journal of Earth Sciences 5 45-66. http://rjes.wdcb.ru/v05/tje03122/tje03122.htm (Polyak B.G.) [318]. Polyak et al. (1982). Isotopic composition and concentration of inert gases in Mexican hydrothermal systems. Geofisica Internacional 21, 193-227. doi.org/10.22201/igeof.00167169p.1982.21.3.823 (Polyak B.G., Prasolov E.M., Kononov V.I., Verkhovskiy A.B., Gonzalez A., Templos L.A., Espindola J.M., Arellano J.M., and Manon A.) [319]. Polyak et al. (1985). First estimation of terrestrial heat flow in the TMVB and adjacent areas based on isotopic composition of natural helium. Geofisica Internacional 24, 465-476. doi.org/10.22201/igeof.00167169p.1985.24.4.2177 (Polyak B.G., Kononov V.I., Prasolov E.M., Sharkov I.V., Prol-Ledesma R.M., Gonzalez A., Razo A., Molina-Berbeller R.) [320]. Polyak et al. (1993). He isotopes in fluids of the Baykal rift zone. International Geology Review 35, 186-202. doi.org/10.1080/00206819309465522 (Polyak B.G., Prasolov E.M., Tolstikhin I.N., Kozlovtseva S.V., Kononov V.I., Khutorskoy M.D.) [321]. Polyak et al. (2000). Helium isotopes, tectonics and heat flow in the Northern Caucasus. Geochimica et Cosmochimica Acta 64, 1925–1944. doi.org/10.1016/S0016-7037(00)00342-2 (Polyak B.G., Tolstikhin I.N., Kamensky I.L., Yakovlev L.E., Marty B., Cheshko A.L.) [322]. Polyak et al. (2009). Mantle helium traces in the Elbrus–Kazbek sector of the Greater Caucasus and adjacent areas. Chemical Geology 266, 57-66. doi.org/10.1016/j.chemgeo.2008.08.005 (Polyak B.G., Lavrushin V.Y., Kamensky I.L.) [323]. Polyak et al. (2011). Helium Isotopes in Gases of Mineral Waters in the Western Caucasus. Lithology and Mineral Resources 46, 495-506. doi.org/10.1134/S0024490211060113 (Polyak B.G., Lavrushin B.Y., Inguaggiato S., Kikvadze O.E.) [324]. Polyak et al. (2013). He, Ar, C and N isotopes in thermal springs of the Chukotka Peninsula: Geochemical evidence of the recent rifting in the north-eastern Asia. Chemical Geology 339, 127-140. doi.org/10.1016/j.chemgeo.2012.08.026 (Polyak B.C., Prasolov E.M., Lavrushin V.Y., Cheshko A.L., Kamenskii I.L.) [325]. Polyak et al. (2018). Isotope-Geochemical Features and Genesis of Gases in the East Carpathian Region. Lithology and Mineral Resources 53, 380-393. doi.org/10.1134/S0024490218050085 (Polyak B.G., Cheshko A.L., Kikvadze O.E., Kamensky I.L., Prasolov E.M.) [326]. Polyak et al. (2020). Velingrad hydrogeothermal system (Bulgaria): geochemical features and heat output. Lithology and Mineral Resources 55, 131-138. (Polyak B.G., Kikvadze O.E., Ermakov A.V., Hristov V., Kamenskii I.L., Lavrushin V.Yu., Nakov R., Deneva B.) [327]. Polyak et al. (2021). Helium isotope studies of Central Tien Shan. IOP Conference Series: Earth and Environmental Science 929, 012005. doi.org/10.1088/1755-1315/929/1/012005 (Polyak B.G., Bataleva E.A., Rybin A.K.) [328]. Poorter et al. (1991). Chemical and isotopic compositions of volcanic gases from the east Sunda and Banda arcs, Indonesia. Geochimica et Cosmochimica Acta 55, 3795-3807. doi.org/10.1016/0016-7037(91)90075-G (Poorter R.P.E., Varekamp J.C., Poreda R.J., van Bergen M.J., Kreulen R.) [329]. Poreda and Craig (1989). Helium isotope ratios in circum-Pacific volcanic arcs. Nature 338, 473-478. doi.org/10.1038/338473a0 (Poreda R., Craig H.) [330]. Poreda et al. (1992). Helium isotopes in Icelandic geothermal systems: I. 3He, gas chemistry, and 13C relations. Geochimica et Cosmochimica Acta 56, 4221-4228. doi.org/10.1016/0016-7037(92)90262-H (Poreda R.J., Craig H., Arnórsson, Welhan J.A.) [331]. Prinzhofer and Deville (2013). Origin of hydrocarbon gas seeping out from offshore mud volcanoes in the Nile delta. Tectonophysics 594, 52-61. doi.org/10.1016/j.tecto.2011.06.028 (Prinzhofer A., Deville E.) [332]. Prinzhofer et al. (2018). Discovery of a large accumulation of natural hydrogen in Bourakebougou (Mali). International Journal of Hydrogen Energy 43, 19315-19326. doi.org/10.1016/j.ijhydene.2018.08.193 (Prinzhofer A., Cissé C.S.T., Diallo A.B.) [333]. Pujol et al. (2018). Physical processes occurring in tight gas reservoirs from Western Canadian Sedimentary Basin: Noble gas signature. Chemical Geology 480, 128-138. doi.org/10.1016/j.chemgeo.2017.12.011 (Pujol M., Van der Boorn S., Bourdon B., Brennwald M., Kipfer R.) [334]. Quattrocchi et al. (2000). Geochemical changes at the Bagni di Triponzo thermal springs during the UmbriaMarche 1997-1998 seismic sequence. Journal of Seismology 4, 567-587. doi.org/10.1023/A:1026590028678 (Quattrocchi F., Pik R., Pizzino L., Guerra M., Scarlato P., Angelone M., Barbieri M., Conti A., Marty B., Sacchi E., Zuppi G.M., Lombardi S.) [335]. Randazzo et al. (2021). Active Degassing of Deeply Sourced Fluids in Central Europe: New Evidences From a Geochemical Study in Serbia. Geochemistry Geophysics Geosystems 22, e2021GC010017. doi.org/10.1029/2021GC010017 (Randazzo P., Caracausi A., Aiuppa A., Cardellini C., Chiodini G., D'Alessandro W., Li Vigni L., Papic P., Marinkovic G., Ionescu A.) [336]. Randazzo et al. (2022). Active degassing of crustal CO2 in areas of tectonic collision: A case study from the Pollino and Calabria sectors (Southern Italy). Frontiers in Earth Science 10, 946707. doi.org/10.3389/feart.2022.946707 (Randazzo P., Caracausi A., Aiuppa A., Cardellini C., Chiodini G., Apollaro C., Paternoster M., Rosiello A., Vespasiano G.) [337]. Ray et al. (2009). The effects of volatile recycling, degassing and crustal contamination on the helium and carbon geochemistry of hydrothermal fluids from the Southern Volcanic Zone of Chile. Chemical Geology 266, 38–49. doi.org/10.1016/j.chemgeo.2008.12.026. (Ray M.C., Hilton D.R., Muñoz J., Fischer T.P., Shaw A.M.) [338]. Regenspurg et al. (2022). Origin and migration of fluoride in the area of the Aluto Volcanic Complex (Main Ethiopian Rift). Applied Geochemistry 146, 105403. doi.org/10.1016/j.apgeochem.2022.105403 (Regenspurg S., Virchow L., Wilke F.D.H., Zimmer M., Jolie E., Hachenberger A., and 4 other authors) [339]. Ricci et al. (2023). Sources and migration pathways of methane and light hydrocarbons in the subsurface of the Southern Po River Basin (Northern Italy). Marine and Petroleum Geology 147, 105981. doi.org/10.1016/j.marpetgeo.2022.105981 (Ricci A., Cremonini S., Severi P., Tassi F., Vaselli O., Rizzo A.L., Caracausi A., Grassa F., Fiebig J., Capaccioni B.) [340]. Ricci et al. (2024). Origin and significance of hydrocarbons in CO2-rich gases from Central Italy seismic areas. Geochemical Perspective Letters 33, 20-26. doi.org/10.7185/geochemlet.2447 (Ricci A., Oliveri Y., Buttitta D., Capasso G., Chiaraluce L., Serpelloni E., Caracausi A.) [341]. Rman et al. (2021). Chemical and isotopic composition of CO2-rich magnesium–sodium–bicarbonate– sulphate-type mineral waters from volcanoclastic aquifer in Rogaška Slatina, Slovenia. Environmental Geochem Health, doi.10.1007/s10653-021-01062-2 (Rman N., Szőcs T., Palcsu L., Lapanje A.) [342]. Robidoux et al. (2020). Petrological and noble gas features of Lascar and Lastarria volcanoes (Chile): Inferences on plumbing systems and mantle characteristics. Lithos 370-371, 105615. doi.org/10.1016/j.lithos.2020.105615 (Robidoux P., Rizzo A.L., Aguilera F., Aiuppa A., Artale M., Liuzzo M., Nazzari M., Zummo F.) [343]. Roulleau et al. (2013). He, N and C isotopes and fluxes in Aira caldera: Comparative study of hydrothermal activity in Sakurajima volcano and Wakamiko crater, Kyushu, Japan. Journal of Volcanology and Geothermal Research 258, 163-175. doi.org/10.1016/j.jvolgeores.2013.04.003 (Roulleau E., Sano Y., Takahata N., Kawagucci S., Takahashi H.) [344]. Roulleau et al. (2016). New insight from noble gas and stable isotopes of geothermal/hydrothermal fluids at Caviahue-Copahue Volcanic Complex: Boiling steam separation and water-rock interaction at shallow depth. Journal of Volcanology and Geothermal Research 328, 70–83. doi.org/10.1016/j.jvolgeores.2016.10.007 (Roulleau E., Tardani D., Sano Y., Takahata N., Vinet N., Bravo F., Muñoz C., Sanchez J.) [345]. Roulleau et al. (2017). Structural controls on fluid circulation at the Caviahue-Copahue Volcanic Complex (CCVC) geothermal area (Chile-Argentina), revealed by soil CO2 and temperature, self-potential, and helium isotopes. Journal of Volcanology and Geothermal Research 341, 104-118. doi.org/10.1016/j.jvolgeores.2017.05.010 (Roulleau E., Bravo F., Pinti D.L., Barde-Cabusson S., Pizarro M., Tardani D., Muñoz C., Sanchez J., Sano Y., Takahata N., de la Cal F., Esteban C., Morata D.) [346]. Rufer et al. (2017). Helium in porewater and rocks of crystalline bedrock from the Fennoscandian Shield, Olkiluoto (Finland). Procedia Earth and Planetary Science 17, 762-765. doi.org/10.1016/j.proeps.2017.01.019 (Rufer D., Waber H.N., Eichinger F., Pitkänen P.) [347]. Rychkova et al. (2007). Helium Isotopes in the Underground Springs of East Tuva. Doklady Earth Sciences 417A, 1440–1443. doi.org/10.1134/S1028334X07090322 (Rychkova K.M., Duchkov A.D., Lebedev V.I., Kamenskii I.L.) [348]. Saar et al. (2005). Quantifying magmatic, crustal, and atmospheric helium contributions to volcanic aquifers using all stable noble gases: Implications for magmatism and groundwater flow. Geochemistry Geophysics Geosystems 6, Q03008. doi.org/10.1029/2004GC000828 (Saar M.O., Castro M.C., Hall C.M., Manga M.) [349]. Saby et al. (2020). Sources and transport of fluid and heat at the newly-developed Theistareykir Geothermal Field, Iceland. Journal of Volcanology and Geothermal Research 405, 107062. doi.org/10.1016/j.jvolgeores.2020.107062 (Saby M., Pinti D.L., van Hinsberg V., Gautason B., Sigurðardóttir A., Castro C., Hall C., Óskarsson F., Rocher O., Hélie J-F., Méjean P.) [350]. Sakamoto et al. (1992). 3He/4He ratio distribution in and around the Hakone volcano. Geochemical Journal 26, 189-195. doi.org/10.2343/geochemj.26.189 (Sakamoto M., Sano Y., Wakita H.) [351]. Salvi et al. (1999). A Multidisciplinary Approach to Earthquake Research: Implementation of a Geochemical Geographic Information System for the Gargano Site, Southern Italy. Natural Hazards 20, 255–278. doi.org/10.1023/A:1008105621134 (Salvi S., Quattrocchi F., Brunori C.A., Doumaz F., Angelone M., Billi A., Buongiorno F., Funiciello R., Guerra M., Mele G., Pizzino L., Salvini F.) [352]. Sanjuan et al. (2016). Major geochemical characteristics of geothermal brines from the Upper Rhine Graben granitic basement with constraints on temperature and circulation. Chemical Geology 428, 27-47. [442]. Wang et al. (2022). Upwelling of Mantle Derived Material in Southeast China: Evidence from Noble Gas Isotopes. Acta Geologica Sinica 96, 100-110. doi.org/10.1111/1755-6724.14686 (Wang S., Kuang J., Huang X., Zhang H., Zhang M., Qi S., Han Y., Xiao Z., Wang S., Tang I.) [443]. Wang et al. (2024). Constraints on geological structures and dynamics along the Tian Shan-Pamir orogenic belt with helium isotopes in hot springs. Applied Geochemistry 160, 105859. doi.org/10.1016/j.apgeochem.2023.105859 (Wang S., Zhou X., Tian J., He M., Li J., Dong J., Li L., Li Z., Xing L., Zheng G.) [444]. Warr et al. (2018). Tracing ancient hydrogeological fracture network age and compartmentalisation using noble gases. Geochimica et Cosmochimica Acta 222, 340–362. doi.org/10.1016/j.gca.2017.10.022 (Warr O., Sherwood Lollar B., Fellowes J., Sutcliffe C.N., McDermott J.M., Holland G., Mabry J.C., Ballentine C.J.) [445]. Wei et al. (2016). Helium and carbon isotopes in the hot springs of Changbaishan Volcano, northeastern China: A material connection between Changbaishan Volcano and the west Pacific plate? Journal of Volcanology and Geothermal Research 327, 398–406. doi.org/10.1016/j.jvolgeores.2016.09.005 (Wei F., Xu J., Shangguan Z., Pan B., Yu H., Wei W., Bai X., Chen Z.) [446]. Weinlich et al. (1999). An active subcontinental mantle volatile system in the western Eger rift, Central Europe: Gas flux, isotopic (He, C, and N) and compositional fingerprints. Geochimica et Cosmochimica Acta 63, 3653-3671. doi.org/10.1016/S0016-7037(99)00187-8 (Weinlich F.H., Bräuer K., Kämpf H., Strauch G., Tesař J., Weise S.M.) [447]. Welhan et al. (1988a). Helium isotopes in geothermal and volcanic gases of the western United States. I. Regional variability and magmatic origin. Journal of Volcanology and Geothermal Research 34, 185-199. doi.org/10.1016/0377-0273(88)90032-7 (Welhan J.A., Poreda R.J., Rison W., Craig H.) [448]. Welhan et al. (1988b). Helium isotopes in geothermal and volcanic gases of the western United States, II. Long Valley Caldera. Journal of Volcanology Research 34, 201-209. doi.org/10.1016/0377-0273(88)90033-9 (Welhan J.A., Poreda R.J., Rison W., Craig H.) [449]. Wen et al. (2018). A noble gas and 87Sr/86Sr study in fluids of the Los Azufres geothermal field, Mexico – Assessing impact of exploitation and constraining heat sources. Chemical Geology 483, 426-441. doi.org/10.1016/j.chemgeo.2018.03.010 (Wen T., Pinti D.L., Castro M.C., Lόpez-Hernández A., Hall C.M., Shoukar-Stash O., Sandoval-Medina F.) [450]. Wiersberg et al. (2011). Noble gas isotopes and the chemical composition of geothermal gases from the eastern part of the Büyük Menderes Graben (Turkey). Journal of Volcanology and Geothermal Research 208, 112– 121. doi.org/10.1016/j.jvolgeores.2011.09.009 (Wiersberg T., Süer S., Güleç N., Erzinger J., Parlaktuna M.) [451]. Wiersberg et al. (2018). Mantle-derived fluids in the Nankai Trough Kumano forearc basin. Progress in Earth and Planetary Science 5:79. doi.org/10.1186/s40645-018-0235-0 (Wiersberg T., Hammerschmidt S.B., Fuchida S., Kopf A., Erzinger J.) [452]. Williams et al. (1987). Helium-3 emission from Nevado del Ruiz volcano, Colombia. Geophysical Research Letters 14, 1035-1038. doi.org/10.1029/GL014i010p01035 (Williams S.N., Sano Y., Wakita H.) [453]. Winckler et al. (2001). Constraints on origin and evolution of Red Sea brines from helium and argon isotopes. Earth and Planetary Science Letters 184, 671-683. doi.org/10.1016/S0012-821X(00)00345-9 (Winckler G., Aeschbach-Hertig W., Kipfer R., Botz R., Rübel A.P., Bayer R., Stoffers P.) [454]. Woith et al. (2023). Effect of pressure perturbations on CO2 degassing in a mofette system: the case of Hartoušov, Czech Republic. Geosciences 2023, 13, 2. doi.org/10.3390/geosciences13010002 (Woith H., Vlček J., Vylita T., Dahm T., Fischer T., Daskalopoulou K., Zimmer M., Niedermann S., Stammeier J.A., Turjaková V., Lanzendörfer M.) [455]. Xu et al. (2012). Carbon and noble gas isotopes in the Tengchong Volcanic Geothermal Area, Yunnan, Southwestern China. Acta Geologica Sinica 78, 1122-1135. doi.org/10.1111/j.1755-6724.2004.tb00769.x (Xu S., Nakai S., Wakita H., Wang X.) [456]. Xu et al. (2013). Hydrothermal He and CO2 at Wudalianchi intra-plate volcano, NE China. Journal of Asian Earth Sciences 62, 526–530. doi.org/10.1016/j.jseaes.2012.11.001 (Xu S., Zheng G., Nakai S., Wakita H., Wang X., Guo Z.) [457]. Xu et al. (2014). Helium and carbon isotope variations in Liaodong Peninsula, NE China. Journal of Asian Earth Sciences 90, 149–156. doi.org/10.1016/j.jseaes.2014.04.019 (Xu S., Zheng G., Wang X., Wang H., Nakai S., Wakita H.) [458]. Xu et al. (2022). Degassing of deep-sourced CO2 from Xianshuihe-Anninghe fault zones in the eastern Tibetan Plateau. Science China Earth Sciences 65, 139-155. doi.org/10.1007/s11430-021-9810-x (Xu S., Guan L., Zhang M., Zhong J., Liu W., Xie X., Liu C., Takahata N., Sano Y.) [459]. Yan et al. (2018). Hydrogeochemical Characteristics and Genesis Model of Jinjiang and Julong Hot Springs in Changbai Mountain, Northeast China. Geofluids 2018, 1694567. doi.org/10.1155/2018/1694567 (Yan B., Liang X., Xiao C.) [460]. Yang et al. (2003). Remnant magmatic activity in the Coastal range of East Taiwan after arc-continent collision: fission track data and 3He/4He ratio evidence. Radiation Measurements (2003) 36, 343-349. doi.org/10.1016/S1350-4487(03)00149-5 (Yang T.F., Chen C-H., Tien R.L., Song S.R., Liu T.K.) [461]. Yang et al. (2011). Soil radon flux and concentrations in hydrothermal area of the Tatun Volcano Group, Northern Taiwan. Geochemical Journal 45, 483-490. doi.org/10.2343/geochemj.1.0144 (Yang T.F., Wen HY., Fu C-C., Lee H-F., Lan T.F., Chen A-T., Hong W-L., Lin S-J., Walia V.) [462]. Yokochi et al. (2013). Noble gas radionuclides in Yellowstone geothermal gas emissions: A reconnaissance. Chemical Geology 339, 43-51. doi.org/10.1016/j.chemgeo.2012.09.037 (Yokochi R., Sturchio N.C., Purtschert R., Jiang W., Lu Z-T., Mueller P., Yang G-M., Kennedy B.M., Kharaka Y.) [463]. Yu et al. (2022). Hot spring gas geochemical characteristics and geological implications of the Northern Yadong-Gulu Rift in the Tibetan Plateau. Frontiers in Earth Science 10, 863559. doi.org/10.3389/feart.2022.863559 (Yu X., Wei Z., Wang G., Ma X., Zhang T., Yang H., Li L., Zhou S., Wang X.) [464]. Yuce et al. (2014). Origin and interactions of fluids circulating over the Amik Basin (Hatay, Turkey) and relationships with the hydrologic, geologic and tectonic settings. Chemical Geology 388, 23-39. doi.org/10.1016/j.chemgeo.2014.09.006 (Yuce G., Italiano F., D'Alessandro W., Yalcin T.H., Yasin D.U., Gulbay A.H., and 10 more authors) [465]. Yuce et al. (2016). Assessment of the origin and geothermal potential of the thermal waters by hydro-isotope geochemistry: Eskisehir province, Turkey. Isotopes in Environmental and Health Studies 2016, 1206096. doi.org/10.1080/10256016.2016.1206096 (Yuce G., Italiano F., Yasin D., Taskiran L., Hilmi A.) [466]. Zelenski and Taran (2011). Geochemistry of volcanic and hydrothermal gases of Mutnovsky volcano, Kamchatka: evidence for mantle, slab and atmosphere contributions to fluids of a typical arc volcano. Bulletin of Volcanology 73, 373-394. doi.org/10.1007/s00445-011-0449-0 (Zelenski M., Taran Y.) [467]. Zelenski et al. (2020). Volcanic gas emissions from Taftan and Damavand, the Iranian volcanoes. Journal of Volcanology and Geothermal Research 397, 106880. doi.org/10.1016/j.jvolgeores.2020.106880 (Zelenski M., Chaplygin I., Babadi M.F., Taran Y., Campion R., Mehrabi B., and 6 other authors) [468]. Zhang et al. (2015). Stagnant subducted Pacific slab-derived CO2 emissions: Insights into magma degassing at Changbaishan volcano, NE China. Journal of Asian Earth Sciences 106, 49-63. doi.org/10.1016/j.jseaes.2015.01.029 (Zhang M., Guo Z., Sano Y., Cheng Z., Zhang L.) [469]. Zhang et al. (2016). Mantle volatiles in spring gases in the Basin and Range Province on the west of Beijing, China: Constraints from helium and carbon isotopes. Journal of Volcanology and Geothermal Research 309, 45–52. doi.org/10.1016/j.jvolgeores.2015.10.024 (Zhang W., Du J., Zhou X., Wang F.) [470]. Zhang et al. (2017a). Flux and genesis of CO2 degassing from volcanic-geothermal fields of Gulu-Yadong rift in the Lhasa terrane, South Tibet: Constraints on characteristics of deep carbon cycle in the India-Asia continent subduction zone. Journal of Asian Earth Sciences 149, 110-123. doi.org/10.1016/j.jseaes.2017.05.036 (Zhang L., Guo Z., Sano Y., Zhang M., Sun Y., Cheng Z., Yang T.F.) [471]. Zhang et al. (2017b). Geochemical constraints on origin of hydrothermal volatiles from southern Tibet and the Himalayas: Understanding the degassing systems in the India-Asia continental subduction zone. Chemical Geology 469, 19-33. doi.org/10.1016/j.chemgeo.2017.02.023 (Zhang M., Guo Z., Zhang L., Sun Y., Cheng Z.) [472]. Zhang et al. (2021). Deciphering a mantle degassing transect related with India-Asia continental convergence from the perspective of volatile origin and outgassing. Geochimica et Cosmochimica Acta 310, 61-78. doi.org/10.1016/j.gca.2021.07.010 (Zhang M., Xu S., Zhou X., Caracausi A., Sano Y., Guo Z., Zheng G., Lang Y-C., Liu C-Q.) [473]. Zhao et al. (2022). Subducting Indian Lithosphere Controls the Deep Carbon Emission in Lhasa Terrane, Southern Tibet. Journal of Geophysical Research Solid Earth 127, e2022JB024250. doi.org/10.1029/2022JB024250 (Zhao W., Guo Z., Zheng G., Pinti D.L., Zhang M., Li J., Ma L.) [474]. Zheng et al. (2013). Gas emission from the Qingzhu River after the 2008 Wenchuan Earthquake, Southwest China. Chemical Geology 339, 187–193. doi.org/10.1016/j.chemgeo.2012.10.032 (Zheng G., Xu S., Liang S., Shi P., Zhao J.) [475]. Zheng et al. (2017). Gas geochemistry and methane emission from Dushanzi mud volcanoes in the southern Junggar Basin, NW China. Journal of Asian Earth Sciences 149, 184-190. doi.org/10.1016/j.jseaes.2017.08.023 (Zheng G., Ma X., Guo Z., Hilton D.R., Xu W., Liang S., Fan Q., Chen W.) [476]. Zhou et al. (2015). Hot Spring Gas Geochemistry in Western Sichuan Province, China After the Wenchuan Ms 8.0 Earthquake. Terrestrial Atmospheric Oceanic Sciences 26, 361-373. doi.org/10.3319/TAO.2015.01.05.01(TT) (Zhou X., Wang W., Chen Z., Yi L., Liu L., Xie C., Cui Y., Du J., Cheng J., Yang L.) [477]. Zhou et al. (2017). Gas geochemistry of the hot spring in the Litang fault zone, Southeast Tibetan Plateau. Applied Geochemistry 79, 17-26. doi.org/10.1016/j.apgeochem.2017.01.022 (Zhou X., Liu L., Chen Z., Cui Y., Du J.) [478]. Zhou et al. (2021). Short-Term Seismic Precursor Anomalies of Hydrogen Concentration in Luojishan Hot Spring Bubbling Gas, Eastern Tibetan Plateau. Frontiers in Earth Science 8:586279. doi.org/10.3389/feart.2020.586279 (Zhou X., Yan Y., Fang W., Wang W., Shi H., Li P.) [479]. Zmazek et al. (2002). Geochemical monitoring of thermal waters in Slovenia: relationships to seismic activity. Applied Radiation and Isotopes 57, 919-930. doi.org/10.1016/S0969-8043(02)00200-2 (Zmazek B., Italiano F., Živčić M., Vaupotič J., Kobal I., Martinelli G.) [480]. Zuber et al. (1995). Age and recharge area of thermal waters in Ladek Spa (Sudeten, Poland) deduced from environmental isotope and noble gas data. Journal of Hydrology 167, 327-349. doi.org/10.1016/00221694(94)02587-2 (Zuber A., Weise S.M., Osenbruck K., Grabczak J., Ciezkowsky W.)