Investigating fossil hydrothermal systems by means of fluid inclusions and stable isotopes in banded travertine: an example from Castelnuovo dell’Abate (southern Tuscany, Italy)

详细信息    查看全文

• 作者：Valentina Rimondi ; Pilario Costagliola…
• 关键词：Banded travertine ; C and O isotope geochemistry ; Fluid inclusions study ; Monte Amiata geothermal field
• 刊名：International Journal of Earth Sciences
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：105
• 期：2
• 页码：659-679
• 全文大小：6,589 KB
• 参考文献：Altunel E, Hancock PL (1993) Morphology and structural setting of Quaternary travertines at Pamukkale, Turkey. Geol J 28:335–346CrossRef
  Altunel E, Karabacak V (2005) Determination of horizontal extension from fissure-ridge travertines: a case study from the Denizli Basin, southwestern Turkey. Geodin Acta 18:333–342CrossRef
  Arnórsson S (1989) Deposition of calcium carbonate minerals from geothermal waters—theoretical considerations. Geothermics 18:33–39CrossRef
  Baietto A, Giudetti G, Governi S, Fusani L, Salvatici E (2008) Shallow versus deep thermal circulations at Bagni di S. Filippo (Mt. Amiata, Tuscany, Italy). 70th EAGE conference and exhibition—workshops and fieldtrips. 9–12 June 2008, Rome. doi:10.​3997/​2214-4609.​201405054
  Barberi F, Buonasorte G, Cioni R, Fiordelisi A, Foresi L, Laccarino S, Laurenzi MA, Sbrana A, Vernia L, Villa IM (1994) Plio-Pleistocene geological evolution of the geothermal area of Tuscany and Latium. Mem Descr Carta Geol Ital 49:77–134
  Barbieri M, Masi U, Tolomeo L (1976) Distribuzione dello stronzio nei gessi e nelle anidriti delle formazioni evapouritiche dell’Italia centrale. Rend. Soc. Ital. Mineral. Petrol. 32:551–560
  Bartole R (1995) The North Tyrrhenian-Northern Apennines post-collisional system: constraints for a geodynamic model. Terra Nova 7:7–30CrossRef
  Batini F, Brogi A, Lazzarotto A, Liotta D, Pandeli E (2003) Geological features of Larderello-Travale and Mt. Amiata geothermal areas (southern Tuscany, Italy). Episodes 26:239–244
  Bertini G, Cappetti G, Dini I, Lovari F (1995) Deep drilling results and updating of geothermal knowledge of the Monte Amiata area. In: Proceedings of the world geothermal congress 1995, Florence, pp 1283–1286
  Bigazzi G, Giuliani O, Bonadonna FP, Ghezzo C, Radicati Di Brozolo F, Rita F (1981) Geochronological study of the Monte Amiata Lavas (Central Italy). Bull Volcanol 44:455–465CrossRef
  Bodnar RJ, Vytik MO (1994) Interpretation of microthermometric data for H2O–NaCl fluid inclusions. In: Vivo BD, Frezotti ML (eds) Fluid inclusions in minerals: methods and applications. Virginia Polytechnic Institute, Blacksburg, pp 117–130
  Bosi C, Messina P, Rosati M, Sposato A (1996) Età dei travertini della Toscana meridionale e relative implicazioni tettoniche. Mem Soc Geol It 51:239–304
  Bottinga Y (1969) Calculated fractionation factors for carbon and hydrogen isotope exchange in the system calcite–carbon dioxide–calcite–methane–hydrogen–water-vapour. Geochim Cosmochim Acta 33:49–64CrossRef
  Brasier AT (2011) Searching for travertines, calcretes and speleothems in deep time: processes, appearances, predictions and the impact of plants. Earth Sci Rev 104:213–239CrossRef
  Brogi A (2008) The structure of the Monte Amiata volcano geothermal area (Northern Apennines, Italy): Neogene–Quaternary compression versus extensions. Int J Earth Sci (Geol Rundsch) 97:677–703CrossRef
  Brogi A, Capezzuoli E (2009) Travertine deposition and faulting: the fault-related travertine fissure-ridge at Terme S. Giovanni, Rapolano Terme (Italy). Int J Earth Sci (Geol Rundsch) 98:931–947CrossRef
  Brogi A, Lazzarotto A, Liotta D, Ranalli G (2005) Crustal structures in the geothermal areas of southern Tuscany (Italy): insights from the CROP 18 deep seismic reflection lines. J Volcanol Geoth Res 148:60–80CrossRef
  Brogi A, Capezzuoli E, Aqué R, Branca M, Voltaggio M (2010a) Studying travertines for neotectonics investigations: Middle–LatePleistocene syn-tectonic travertine deposition at Serre di Rapolano (Northern Apennines, Italy). Int J Earth Sci (Geol Rundsch) 99:1383–1398CrossRef
  Brogi A, Liotta D, Meccheri M, Fabbrini L (2010b) Transtensional shear zones controlling volcanic eruptions: the Middle Pleistocene Monte Amiata volcano (inner Northern Apennines, Italy). Terra Nova 22:137–146CrossRef
  Brogi A, Capezzuoli E, Buracchi E, Branca M, Voltaggio M (2012) Tectonic control on travertine and calcareous tufa deposition in a low-temperature geothermal system (Sarteano, Central Italy). J Geol Soc 169:461–476CrossRef
  Brogi A, Capezzuoli E, Martini I, Picozzi M, Sandrelli F (2014) Late Quaternary tectonics in the inner Northern Apennines (Siena Basin, southern Tuscany, Italy) and their seismotectonic implication. J Geodyn 76:25–45CrossRef
  Brogi A, Liotta D, Ruggieri G, Capezzuoli E, Meccheri M, Dini A (2015) An overview on the characteristics of geothermal carbonate reservoirs in southern Tuscany. It J Geosc. doi:10.​3301/​IJG.​2014.​41
  Brunet C, Monie P, Jolivet L, Cadet JP (2000) Migration of compression and extension in the Tyrrhenian sea, insights from 40Ar/39Ar ages on micas along a transect from Corsica to Tuscany. Tectonophysics 32:127–155CrossRef
  Buttinelli M, De Rita D, Cremisini C, Cimarelli C (2011) Deep explosive focal depths during maar forming magmatic hydrothermal eruption: Baccano Crater, Central Italy. Bull Volcanol 73:899–915CrossRef
  Cadoux A, Pinti DL (2009) Hybrid character and pre-eruptive events of Mt Amiata volcano (Italy) inferred from geochronological, petro-geochemical and isotopic data. J Volcanol Geoth Res 179:169–190CrossRef
  Capezzuoli E, Brogi A, Ricci M, Bertini A (2011) Travertine and calcareous tufa in southern Tuscany (Central Italy). Field Trip Guide book of ISTT (International school of travertine and tufa). Ed. Il Campano, Pisa, p 66
  Capezzuoli E, Gandin A, Pedley M (2014) Decoding tufa and travertine (fresh water carbonates) in the sedimentary record: the state of the art. Sedimentology 61:1–21CrossRef
  Carmignani L, Decandia FA, Disperati L, Fantozzi PL, Lazzarotto A, Liotta D, Meccheri M (1994) Tertiary extensional tectonics in Tuscany (Northern Apennines, Italy). Tectonophysics 238:295–315CrossRef
  Carmignani L, Decandia FA, Disperati L, Fantozzi PL, Lazzarotto A, Liotta D, Oggiano G (1995) Relationships between the Sardinia-Corsica-Provençal domain and the northern Apennines. Terranova 7:128–137
  Chafetz HS, Rush PF, Utech NM (1991) Microenvironmental controls on mineralogy and habit of CaCO3 precipitates: an example from an active travertine system. Sedimentology 38:107–126CrossRef
  Cheng H, Edwards RL, Hoff J, Gallup CD, Richards DA, Asmerom Y (2000) The half-lives of uranium-234 and thorium-230. Chem Geol 169:17–33CrossRef
  Clark TR, Zhao J-X, Feng Y-X, Done TJ et al (2012) Spatial variability of initial 230Th/232Th in modern Porites from the inshore region of the Great Barrier Reef. Geochim Cosmochim Acta 78:99–118CrossRef
  Cortecci G, Lupi L (1994) Carbon, oxygen and strontium isotope geochemistry of carbonates rocks from the Tuscan Nappe, Italy. Mineral Petrol Acta 37:63–80
  Costagliola P, Benvenuti MM, Benvenuti MG, Di Benedetto F, Lattanzi P (2010) Quaternary sediment geochemistry as a proxy for toxic element source: a case study of arsenic in the Pecora Valley (southern Tuscany, Italy). Chem Geol 270:80–89CrossRef
  Costagliola P, Bardelli F, Benvenuti M, Di Bendetto F, Romanelli M, Paolieri M, Rimondi V, Vaggelli G (2013) Arsenic bearing-calcite in natural travertines: evidence from sequential extraction, μ-XAS and μ-XRF. Environ Sci Technol 47:6231–6238
  Craig H (1957) Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide. Geochim Cosmochim Acta 12:133–149CrossRef
  De Filippis L, Faccenna C, Billi A, Anzalone E, Brilli M, Soligo M, Tuccimei P (2013) Plateau versus fissure ridge travertines from Quaternary geothermal springs of Italy and Turkey: interactions and feedbacks between fluid discharge, paleoclimate, and tectonics. Earth-Sci Rev 123:35–52CrossRef
  De Paola N, Collettini C, Faulkner DR, Trippetta F (2008) Fault zone architecture and deformation processes within evaporitic rocks in the upper crust. Tectonics 47:TC4017
  Del Moro A, Puxeddu M, Radicati di Bronzolo F, Villa IM (1982) Rb-Sr and K-Ar ages on minerals at temperatures of 3000–400°C from deep wells in the Larderello geothermal field (Italy). Contrib Mineral Petrol 81:340–349CrossRef
  Della Vedova B, Bellani S, Pellis G, Squarci P (2001) Deep temperatures and surface heat flow distribution. In: Vai GB, Martini IP (eds) Anatomy of an orogen: the Apennines and adjacent Mediterranean basins. Kluwer, Dordrecht, pp 65–76CrossRef
  Dessau G (1968) Il berillio e l’arsenico nei travertini dell’Italia Centrale. Atti Soc Tosc Sci Nat 75:690–711
  Di Benedetto F, Costagliola P, Benvenuti M, Lattanzi P, Romanelli M, Tanelli G (2006) Arsenic incorporation in natural calcite lattice: evidence from electron spin echo spectroscopy. Earth Planet Sc Lett 246:458–465CrossRef
  Di Benedetto F, Montegrossi G, Minissale A, Pardi LA, Romanelli M, Tassi F, Delgado Huertas A, Pampin EM, Vaselli O, Borrini D (2011) Biotic and inorganic control on travertine deposition at Bullicame 3 spring (Viterbo, Italy): a multidisciplinary approach. Geochim Cosmochim Acta 75:4441–4455CrossRef
  Diamond LW (2003) Systematics of H2O inclusions. In: Samson IM, Anderson AJ, Marshall DD (eds) Fluid inclusions: analysis and interpretation. Mineralogical Association of Canada, Short Course 32, pp 55–80
  Dini A, Gianelli G, Puxeddu M, Ruggieri G (2005) Origin and evolution of Pliocene–Pleistocene granites from the Larderello geothermal field (Tuscan Magmatic Province Italy). Lithos 81:1–31CrossRef
  Dogan M, Dogan AU (2007) Arsenic mineralization, source, distribution, and abundance in the Kutahya region of the western Anatolia, Turkey. Environ Geochem Health 29:119–129CrossRef
  Donnini M, Chiodini G, Avino R, Baldini A, Cardellini C, Caliro S, Frondini F, Granieri D, Morgantini N (2007) Carbon dioxide degassing at Bagni san Filippo (Tuscany, Italy): quantification and modelling of gas release. Geophys Res Abstr 9, EGU2007-A-02954
  DST-Dipartimento di Scienze della Terra Università di Firenze - Gruppo di Geochimica (2010) Indagine geochimica ed isotopica delle sorgenti termo- ed oligominerali dell’area amiatina. Regione Toscana. Accordo di Programma Quadro Ricerca e trasferimento tecnologico per il sistema produttivo, 45 pp (in Italian)
  Duan Z, Sun R (2003) An improved model calculating CO2 solubility in pure water and aqueous NaCl solutions from 273 to 533 K and from 0 to 2000 bar. Chem Geol 193:257–271CrossRef
  Duchi V, Minissale A, Paolieri M, Prati F, Valori A (1992) Chemical relationship between discharging fluids in the Siena-Radicofani graben and the deep fluids produced by the geothermal fields of Mt. Amiata, Torre Alfina and Latera, central Italy. Geothermics 21:401–413CrossRef
  Edwards RL, Chen JH, Wasserburg GJ (1987) 238 U-234 U-230 Th-232Th systematics and the precise measurement of time over the past 500,000 years. Earth Planet Sci Lett 81:175–192CrossRef
  El Desouky H, Soete J, Claes H, Özkul M, Vanhaecke F, Swennen R (2015) Novel applications of fluid inclusions and isotope geochemistry in unravelling the genesis of fossil travertine systems. Sedimentology 62:27–57CrossRef
  Faccenna C, Soligo M, Billi A, De Filippis L, Funiciello R, Rossetti C, Tuccimei P (2008) Late Pleistocene depositional cycles of the Lapis Tiburtinus travertine (Tivoli, Central Italy): possible influence of climate and fault activity. Global Planet Change 63:293–308CrossRef
  Fancelli R, Nuti S (1975) Studio sulle acque termali e minerali della parte orientale della provincia di Siena. Boll. Soc It 94:135–155
  Ferrari L, Conticelli S, Burlamacchi L, Manetti P (1996) Volcanological evolution of the Monte Amiata, southern Tuscany: new geological and petrochemical data. Acta Vulcanol 8:41–56
  Flügel E (2004) Microfacies of carbonate rocks. Analysis, interpretation and application. Springer, New York
  Ford TD, Pedley HM (1996) A review of tufa and travertine deposits of the world. Earth Sci Rev 41:117–175CrossRef
  Fornaca Rinaldi G (1968) 230Th/234Th dating of cave concretions. Earth Planet Sci Lett 5:120–122CrossRef
  Fouke BW, Farmer JD, Des Marais DJ, Pratt L, Sturchio NC, Burns PC, Discipulo MK (2000) Depositional facies and aqueous-solid geochemistry of travertine-depositing hot springs (Angel Terrace, Mammoth Hot Springs, Yellowstone National Park, U.S.A.). J Sedim Res 70:565–585CrossRef
  Fournier RO (1985) Carbonate transport and deposition in the epithermal environment. In: Berger BR, Bethke PM (eds) Geology and geochemistry of epithermal systems, reviews in economic geology, vol 2, pp 63–71
  Friedman I (1970) Some investigations on the deposition of travertine from hot springs—I. The isotopic chemistry of a travertine-depositing spring. Geochim Cosmochim Acta 34:1303–1315CrossRef
  Friedman I, O’Neil JR (1977) Compilation of stable isotope fractionation factors of geochemical interest. In: Fleischer M (ed) Data of geochemistry, 6th edn. US Geological Survey Professional Paper 440-KK, KK1–KK12
  Fritz P (1965) Composizione isotopica dell’ossigeno e del carbonio nei travertini della Toscana. Boll Geofis Teor Appl 7:25–30
  Frondini F, Caliro S, Cardellini C, Chiodini G, Morgantini N, Parello F (2008) Carbon dioxide degassing from Tuscany and Northern Latium (Italy). Global Planet Change 61:89–102CrossRef
  Frondini F, Caliro S, Cardellini C, Chiodini G, Morgantini N (2009) Carbon dioxide degassing and thermal energy release in the Monte Amiata volcanic-geothermal area (Italy). Appl Geochem 24:860–875CrossRef
  Gandin A, Capezzuoli E (2014) Travertine: distinctive depositional fabrics of carbonates from thermal spring systems. Sedimentology 61:264–290CrossRef
  Gasparrini M, Ruggieri G, Brogi A (2013) Diagenesis versus hydrothermalism and fluid–rock interaction within the Tuscan Nappe of the Monte Amiata CO2-rich geothermal area (Italy). Geofluids 13:159–179CrossRef
  Gianelli G (2008) A comparative analysis of the geothermal fields of Larderello and Mt. Amiata, Italy. In: Ueckermann HI (ed) Geothermal energy research trends. Nova Science, New York, pp 59–85
  Gianelli G, Puxeddu M, Batini F, Bertini G, Dini I, Pandeli E, Nicolich R (1988) Geological model of a young volcanoplutonic system: the geothermal region of Monte Amiata (Tuscany, Italy). Geothermics 17:719–734CrossRef
  Gibert RO, Taberner C, Sáez A, Giralt S, Alonso RN, Edwards RL, Pueyo JJ (2009) Igneous origin of CO2 in ancient and recent hot-spring waters and travertines from the northern Argentinean Andes. J Sediment Res 79:554–567CrossRef
  Goldstein RH, Reynolds TJ (1994) Fluid inclusion microthermometry. In: Systematics of fluid inclusions in diagenetic minerals. Society for Sedimentation Geology. Short course 31, pp 87–121
  Gonfiantini R, Panichi C, Tongiorgi E (1968) Isotopic disequilibrium in travertine deposition. Earth Planet Sci Lett 5:55–58CrossRef
  Gudmundsson A, Fjeldskaar I, Brenner SL (2002) Propagation pathways and £uid transport of hydrofractures in jointed and layered rocks in geothermal fields. J Volcanol Geoth Res 116:257–278CrossRef
  Guo L, Riding R (1998) Hot-spring travertine facies and sequences, Late Pleistocene, Rapolano Terme, Italy. Sedimentology 45:163–180CrossRef
  Guo L, Riding R (1999) Rapid facies changes in Holocene fissure ridge hot spring travertines, Rapolano Terme, Italy. Sedimentology 46:1145–1158CrossRef
  Guo L, Andrews J, Riding R, Dennis P, Dresser Q (1996) Possible microbial effects on stable carbon isotope in hot spring travertine. J Sediment Res 66:468–473CrossRef
  Hancock PL, Chalmers RML, Altunel E, Çakir Z (1999) Travitonics: using travertines in active fault studies. J Struct Geol 21:903–916CrossRef
  Hedenquist JW, Henley RW (1985) Hydrothermal eruptions in the Waiotapu Geothermal System, New-Zealand—their origin, associated breccias, and relation to precious metal mineralization. Econ Geol 80:1640–1668CrossRef
  Hubbert MK, Willis DG (1957) Mechanics of hydraulic fracturing. Trans Inst Min Metall Pet Eng 210:165–166
  Jones B, Renaut RW, Rosen MR (1996) High-temperature (>90°C) calcite precipitation at Waikite Hot Springs, North Island, New Zealand. J Geol Soc London 153:481–496CrossRef
  Kele S, Demény A, Siklósy Z, Németh T, Mária T, Kóvacs MB (2008) Chemical and stable isotope compositions of recent hot-water travertines and associated thermal waters, from Egerszalók, Hungary: depositional facies and non-equilibrium fractionations. Sed Geol 211:53–72CrossRef
  Kele S, Özkul M, Gökgöz A, Fórizs I, Baykara MO, Alçiçek MC, Németh T (2011) Stable isotope geochemical and facies study of Pamukkale travertines: new evidences of low-temperature non-equilibrium calcite-water fractionation. Sed Geol 238:191–212CrossRef
  Kerrich R (1986) Fluid infiltration into fault zones: chemical, isotopic, and mechanical effects. Pure Appl Geochem 124:225–268CrossRef
  Laurenzi MA, Villa IM (1991) The age or the early volcanic activity at Monte Amiata volcano, Tuscany: evidence for a paleomagnetic reversal at 300 Ka bp. Plinius 6:160–161
  Liotta D, Ruggieri G, Brogi A, Fulignati P, Dini A, Nardini I (2009) Migration of geothermal fluids in extensional terrains: the ore deposits of the Boccheggiano-Montieri area (Southern Tuscany, Italy). Int J Earth Sci (Geol Rundsch) 99:623–644CrossRef
  Longinelli A, Selmo E (2003) Isotopic composition of precipitation in Italy: a first overall map. J Hydrol 270:75–88CrossRef
  Ludwig KR (1999) User’s Manual for Isoplot/Ex Version 2.02, a geochronological toolkit for Microsoft Excel. Berkeley Geochronology Center Special Publication 1a. Berkeley, CA, USA
  Malesani P, Vannucci S (1975) Precipitazione di calcite o di aragonite dalle acque termo-minerali in relazione alla genesi e alla evoluzione dei travertini. Rend Acc Naz Lincei 58:761–776
  Manfra L, Masi U, Turi B (1974) Effetti isotopici nella diagenesi dei travertini. Geol Rom 13:147–155
  Manfra L, Masi U, Turi B (1976) La composizione isotopica dei travertini del Lazio. Geol Rom 15:127–174
  Marinelli G (1969) Some geological data on the geothermal area of Tuscany. Bull Vulcanol 33(1):319–334CrossRef
  McCrea JM (1950) On the isotope chemistry of carbonates and a palaeotemperature scale. J Chem Phys 18:849–857CrossRef
  Minissale A (2004) Origin, transport and discharge of CO2 in central Italy. Earth Sci Rev 66:89–141CrossRef
  Minissale A, Evans WC, Magro G, Vaselli O (1997) Multiple source components in gas manifestations from north-central Italy. Chem Geol 142:175–192CrossRef
  Minissale A, Vaselli O, Tassi F, Magro G, Grechi GP (2002) Fluid mixing in carbonate aquifers near Rapolano (central Italy): chemical and isotopic constraints. Appl Geochem 17:1329–1342CrossRef
  Molli G (2008) Northern Apennine-Corsica orogenic system: an updated overview. Geol Soc Lond Spec Publ 298:413–442CrossRef
  Panichi C, Tongiorgi E (1976) Carbon isotopic composition of CO2 from springs, fumaroles, mofettes, and travertines of Central and Southern Italy: a preliminary prospection method of geothermal area. In: Proceedings 2nd UN symposium on the development and use of geothermal resources, 20–29 May 1975, San Francisco, pp 815–825
  Peccerillo A (2003) Plio-Quaternary magmatism in Italy. Episodes 26:222–226
  Pentecost A (2005) Travertine. Springer, Heidelberg, pp 101–147
  Renaut RW, Jones B (1997) Controls on aragonite and calcite precipitation in hot spring travertine at Chemurkeu, Lake Bogoria, Kenya. Can J Earth Sci 34:801–816CrossRef
  Renaut RW, Owen RB, Jones B, Tiercelin J-J, Tarits C, Ego JK, Konhauser KO (2013) Impact of lake-level changes on the formation of thermogene travertine in continental rifts: evidence from Lake Bogoria, Kenya Rift Valley. Sedimentology 60:428–468CrossRef
  Richardson CK, Holland HD (1979) Fluorite deposition in hydrothermal systems. Geochem Cosmochim Acta 43:1327–1335CrossRef
  Riding R (1991) Classification of microbial carbonates. In: Riding R (ed) Calcareous algae and stromatolites. Springer, Berlin, pp 21–51CrossRef
  Rimondi V, Chiarantini L, Lattanzi P, Benvenuti M, Beutel M, Colica A, Costagliola P, Di Benedetto F et al (2015) Metallogeny, exploitation and environmental impact of the Mt. Amiata mercury ore district (Southern Tuscany, Italy). It J Geosci (in press)
  Roedder E (1970) Application of an improved crushing microscope stage to the studies of the gases in fluid inclusions. Schweiz Mineral Petrogr Mitt 50:41–58
  Roedder E (1984) Fluid inclusions. In: Ribbe PH (ed) Reviews in mineralogy, vol 12. Mineralogical Society of America, Washington, DC
  Rogie J, Kerrick DM, Chiodini G, Frondini F (2000) Flux measurements of nonvolcanic CO2 emission from some vents in central Italy. J Geophys Res 105:8435–8445CrossRef
  Ruggieri G, Gianelli G (1999) Multi-stage fluid circulation in a hydraulic fracture breccia of the Larderello geothermal field Italy. J Volcanol Geoth Res 90:241–261CrossRef
  Sasada M (1985) CO2-bearing fluid inclusions from geothermal field. Geotherm Resour Counc Trans 9:351–356
  Shepherd TJ, Rankin AH, Alderton DHM (1985) A practical guide to fluid inclusion studies. Blackie, Glasgow
  Simmons SF, Christenson WB (1994) Origins of calcite in a boiling geothermal system. Am J Sci 294:361–400CrossRef
  Słowakiewicz M (2003) Fluid inclusion data from the Upper Triassic hot-spring travertines in southern Poland. J Geochem Explor 78–79:123–126CrossRef
  Taddeucci A, Voltaggio M (1987) Th-230 dating of the travertines connected to the Vulsini Mts. volcanism (Northern Latium, Italy): neotectonics and hydrogeology. Per Mineral 56:295–302
  Tanelli G (1983) Ore deposits and minerogenesis of Tuscany. Mem Soc Geol Ital 25:91–106 (in Italian)
  Tassi F, Vaselli O, Cuccoli F, Buccianti A, Nisi B, Lognoli E, Montegrossi G (2009) A geochemical multi-methodological approach in hazard assessment of CO2-rich gas emissions at Mt. Amiata Volcano (Tuscany, Central Italy). Water Air Soil Pollut Focus 9:117–127CrossRef
  Turi B (1986) Stable isotopes geochemistry of travertines. In: Fritz P, Fontes JC (eds) The terrestrial environment. Handbook of environmental isotope geochemistry, vol 2B. Elsevier, Amsterdam, pp 207–238
  Uysal IT, FengY Zhao J-X, Altunel E, Weatherley D, Karakacak V, Cengiz O, Golding SD, Lawrence MG, Collerson KD (2007) U-series dating and geochemical tracing of late Quaternary travertine in co-seismic fissures. Earth Planet Sci Lett 257:450–462CrossRef
  Uysal IT, Feng Y-X, Zhao J-X, Isik V, Nuriel P, Golding SD (2009) Hydrothermal CO2 degassing in seismically active zones during the late Quaternary. Chem Geol 265:442–454CrossRef
  Vermoere M, Degryse P, Vanhecke L, Muchez Ph, Paulissen E, Smets E, Waelkens M (1999) Pollen analysis of two travertine sections in Basköy (southwestern Turkey): implications for environmental conditions during the early Holocene. Rev Palaeobot Palyno 105:93–110CrossRef
  Winkel LHE, Casentini B, Bardelli F, Voegelin A, Nikolaidis NP, Charlet L (2013) Speciation of arsenic in Greek travertines: co-precipitation of arsenate with calcite. Geochimic Cosmochim Acta 106:99–110CrossRef
  Zhao J-X, Hu K, Collerson KD, Xu HK (2001) Thermal ionization mass spectrometry U-series dating of a hominid site near Nanjing, China. Geology 29:27–30CrossRef
  Zheng Y-Z (1990) Carbon-oxygen isotopic covariation in hydrothermal calcite during degassing of CO2. A quantitative evaluation and application to the Kushikino gold mining area in Japan. Mineral Depos 25:246–250CrossRef
  Zhou HY, Zhao J-X, Wang Q, Feng Y-X, Tang J (2011) Speleothem-derived Asian summer monsoon variations in Central China during 54–46 ka. J Quat Sci 26:781–790CrossRef
  
• 作者单位：Valentina Rimondi (1)
  Pilario Costagliola (2)
  Giovanni Ruggieri (1)
  Marco Benvenuti (2)
  Chiara Boschi (3)
  Andrea Brogi (4)
  Enrico Capezzuoli (5)
  Guia Morelli (6)
  Massimo Gasparon (6) (7)
  Domenico Liotta (4)
  
  1. CNR - Istituto di Geoscienze e Georisorse, Via G. La Pira 4, 50121, Florence, Italy
  2. Dipartimento di Scienze della Terra, Università di Firenze, Via G. La Pira 4, 50121, Florence, Italy
  3. CNR - Istituto di Geoscienze e Georisorse, Via Moruzzi 1, 56124, Pisa, Italy
  4. Dipartimento di Scienze della Terra e Geoambientali, Università di Bari, Via Orabona 4, 70125, Bari, Italy
  5. Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli, 06123, Perugia, Italy
  6. School of Earth Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
  7. Australian National Centre for Groundwater Research and Training, The University of Queensland, St Lucia, QLD, 4072, Australia
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Geology
  Geophysics and Geodesy
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1437-3262

文摘

Southern Tuscany (Italy) hosts geothermal anomalies with associated widespread CO₂ gas-rich manifestations and active travertine-deposing thermal springs. Geothermal anomalies have been active since the Late Miocene and have led to the formation of widespread Late Miocene–Pleistocene travertine deposits and meso- and epithermal mineralizations. This study investigates the travertine deposit exposed in the Castelnuovo dell’Abate area of southern Tuscany. Here, a fissure-ridge type travertine deposit and its feeding conduits, currently filled with banded calcite veins (i.e. banded travertine), represent a spectacular example of fossil hydrothermal circulation in the peripheral area of the exploited Monte Amiata geothermal field. The Castelnuovo dell’Abate travertine deposit and associated calcite veins were analysed to establish the characteristics of the parent hydrothermal fluids, and the age of this circulation. The focus of the study was on fluid inclusions, rarely considered in travertine studies, but able to provide direct information on the physico-chemical characteristics of the original fluid. Uranium–thorium geochronological data provided further constraints on the: (1) age of tectonic activity; (2) age of the hydrothermal circulation; and (3) evolution of the Monte Amiata geothermal anomaly. Results indicate that brittle deformation (NW- and SE-trending normal to oblique-slip faults) was active during at least the Middle Pleistocene and controlled a hydrothermal circulation mainly characterized by fluids of meteoric origin, and as old as 300–350 ka. This is the oldest circulation documented to date in the Monte Amiata area. The fluid chemical composition is comparable to that of fluids currently exploited in the shallow reservoir of the Monte Amiata geothermal field, therefore suggesting that fluid composition has not changed substantially over time. These fluids, however, have cooled by about 70 °C in the last 300–350 ka, corresponding to a cooling rate of the Monte Amiata geothermal area of about 20 °C 100 ka−1. Keywords Banded travertine C and O isotope geochemistry Fluid inclusions study Monte Amiata geothermal field