Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5838| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Chiodini, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.date.accessioned | 2010-01-22T18:40:41Z | en |
| dc.date.available | 2010-01-22T18:40:41Z | en |
| dc.date.issued | 2009-01-17 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/5838 | en |
| dc.description.abstract | Long time series of fumarolic compositions at Campi Flegrei (Italy), Mammoth Mountain (California), Panarea (Italy) and Nisyros (Greece) show rapid increases, up to orders of magnitude, of the CO2/CH4 ratio systematically with the occurrence of volcanic unrest periods. These easily detected anomalies originate with the arrival of CH4-poor magmatic fluids in the shallower levels of the volcanoes. The data suggest that volcanoes are characterized by magmatic activity at depth also in periods of apparent quiescence. The activity is constituted by the pulsing release of large amount of fluids which either cause unrest periods (seismicity and ground deformation) or possibly could precede volcanic eruption. This type of volcanic activity can be monitored trough the classical geophysical techniques together with the systematic sampling and analysis of fumaroles. | en |
| dc.language.iso | English | en |
| dc.publisher.name | American Geophysical Union | en |
| dc.relation.ispartof | Geophysical Research Letters | en |
| dc.relation.ispartofseries | /36(2009) | en |
| dc.subject | CO2/CH4 | en |
| dc.subject | magma degassing | en |
| dc.subject | quiescent volcanoes | en |
| dc.title | CO2/CH4 ratio in fumaroles a powerful tool to detect magma degassing episodes at quiescent Volcanoes | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | L02302 | en |
| dc.subject.INGV | 03. Hydrosphere::03.04. Chemical and biological::03.04.05. Gases | en |
| dc.subject.INGV | 03. Hydrosphere::03.04. Chemical and biological::03.04.06. Hydrothermal systems | en |
| dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry | en |
| dc.identifier.doi | 10.1029/2008GL036347 | en |
| dc.relation.references | Caliro, S., G. Chiodini, R. Moretti, R. Avino, D. Granieri, M. Russo, and J. Fiebig (2007), The origin of the fumaroles of La Solfatara (Campi Flegrei, south Italy), Geochim. Cosmochim. Acta, 71, 3040–3055. Chiodini, G., and L. Marini (1998), Hydrothermal gas equilibria: The H2OH2- CO2-CO-CH4 system, Geochim. Cosmochim. Acta, 62, 2673– 2687. Chiodini, G., R. Cioni, and L. Marini (1993), Reactions governing the chemistry of crater fumaroles from Vulcano Island, Italy, and implications for volcanic surveillance, Appl. Geochem., 8, 357–371. Chiodini, G., F. Frondini, C. Cardellini, D. Granieri, L.Marini, and G. Ventura (2001), CO2 degassing and energy release at Solfatara volcano, Campi Flegrei, Italy, J. Geophys. Res., 106, 16,213–16,221. Chiodini, G., T. Brombach, S. Caliro, C. Cardellini, L.Marini, and V. Dietrich (2002), Geochemical indicators of possible ongoing volcanic unrest at Nisyros Island (Greece), Geophys. Res. Lett., 29(16), 1759, doi:10.1029/ 2001GL014355. Chiodini, G., M. Todesco, S. Caliro, C. Del Gaudio, G. Macedonio, and M. Russo (2003), Magma degassing as a trigger of bradyseismic events: The case of Phlegrean Fields (Italy), Geophys. Res. Lett., 30(8), 1434, doi:10.1029/2002GL016790 Chiodini, G., S. Caliro, G. Caramana, D. Granieri, C. Minopoli, R. Moretti, L. Perrotta, and G. Ventura (2006), Geochemistry of the submarine gaseous emissions of Panarea (Aeolian Islands, southern Italy): Magmatic vs. hydrothermal origin and implications for volcanic surveillance, Pure Appl. Geophys., 163, 759– 780, doi:10.1007/s00024-006-0037-y. D’Amore, F., and C. Panichi (1980), Evaluation of deep temperature of hydrothermal systems by a new gas-geothermometer,Geochim. Cosmochim. Acta, 44, 549–556. Dvorak, J. J., and G. Mastrolorenzo (1991), The Mechanisms of Recent Vertical Crustal Movements in Campi Flegrei Caldera, Southern Italy, Spec. Pap. Geol. Soc. Am., 263, 47 pp. Giggenbach, W. F. (1987), Redox processes governing the chemistry of fumarolic gas discharges from White Island, New Zeland, Appl. Geochem., 2, 143–161. Giggenbach, W. F. (1996), Chemical composition of volcanic gases, in Monitoring and Mitigation of Volcanic Hazards, edited by R. Scarpa and R. I. Tilling, pp. 221–256, Springer, New York. Giggenbach, W. F. (1997), Relative importance of thermodynamic and kinetic processes in governing the chemical and isotopic composition of carbon gases in high-heatflow sedimentary systems, Geochim. Cosmochim. Acta, 61, 3763–3785. Italiano, F., and P.M.Nuccio (1991), Geochemical investigations of submarine exhalations to the east of Panarea, Aeolian Islands, Italy, J. Volcanol. Geotherm. Res., 46, 125– 141. Miller, S. A., C. Collettini, L. Chiaraluce, M. Cocco, M. R. Barchi, and B. Kaus (2004), Aftershocks driven by a high pressure CO2 source at depth, Nature, 427, 724–727. Orsi, G., L. Civetta, C. Del Gaudio, S. de Vita, M. Di Vito, R. M. Isaia, S. Petrazzuoli, G. Ricciardi, and C. Ricco (1999), Short-term ground deformations and seismicity in the nested Campi Flegrei caldera (Italy): An example of active block resurgence in a densely populated area, J. Volcanol. Geotherm. Res., 91, 415–451. Ricco, C., I. Aquino, S. Borgstro¨m, and C. Del Gaudio (2007), The study of the tiltmetric inversion recorded from July to October 2006 at the Phlegrean Fields (Naples, Italy), Ann. Geophys., 50, 661– 674. Sachpazi, M., C. Kontoes, N. Voulgaris, M. Laigle, G. Vougioukalakis, O. Sikioti, G. Stavrakakis, J. Baskoutas, J. Kalogeras, and J. C. Lepine (2002), Seismological and SAR signature of unrest at Nisyros caldera, Greece, J. Volcanol. Geotherm. Res., 116, 19–33. Sorey, M. L., W. C. Evans, B. M. Kennedy, C. D. Farrar, L. J. Hainsworth, and B. Hausback (1998), Carbon dioxide and helium emissions from a reservoir of magmatic gas beneath Mammoth Mountain, California, J. Geophys. Res., 103, 15,303–15,323. Todesco, M., G. Chiodini, and G. Macedonio (2003), Monitoring and modeling hydrothermal fluid emission at La Solfatara (Phlegrean Fields, Italy). An interdisciplinary approach to the study of diffuse degassing, J. Volcanol. Geotherm. Res., 125, 57– 80. Troise, C., G. De Natale, F. Pingue, F. Obrizzo, P. De Martino, U. Tammaro, and E. Boschi (2007), Renewed ground uplift at Campi Flegrei caldera (Italy): New insight on magmatic processes and forecast, Geophys. Res. Lett., 34, L03301, doi:10.1029/2006GL028545 | en |
| dc.description.obiettivoSpecifico | 1.2. TTC - Sorveglianza geochimica delle aree vulcaniche attive | en |
| dc.description.obiettivoSpecifico | 2.4. TTC - Laboratori di geochimica dei fluidi | en |
| dc.description.obiettivoSpecifico | 4.5. Studi sul degassamento naturale e sui gas petroliferi | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Chiodini, G. | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | restricted | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
| crisitem.author.orcid | 0000-0002-0628-8055 | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.classification.parent | 03. Hydrosphere | - |
| crisitem.classification.parent | 03. Hydrosphere | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
Files in This Item:
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| chiodini 2009 GRLmethane.pdf | 288.59 kB | Adobe PDF |
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