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Diffuse degassing of carbon dioxide on the NW sector of Colli Albani volcanic complex (Rome, Italy)
Type
Conference paper
Language
English
Obiettivo Specifico
4.5. Degassamento naturale
Status
Published
Conference Name
Issued date
July 31, 2007
Conference Location
Kunming, China
Keywords
Abstract
Systematic CO2 soil flux surveys at Cava dei Selci on the Colli Albani volcano (28 seasonal surveys since the year 2000) have shown a significant variation of diffuse CO2 release, with a marked decrease, from 25 to 4 tonnes/day, from May 2000 to August 2004, followed by a new increase. Over the same period, CO2 flux halved at S. Maria delle Mole (16.8 tonnes/day in 2000 and 8.3 tonnes/day in 2006). Also the quantity of CO2 dissolved in the deep waters of the Albano crater lake decreased by one order of magnitude in the period 1997-2006. The high CO2 flux values in 2000 could represent the “tail” of a strong degassing episode recorded at Colli Albani in 1995 and related to local earthquakes. The following decrease of CO2 flux could reflect a permeability decrease caused by hydrothermal calcite precipitation favored by PCO2 reduction in the deep source
References
Amato, A., Chiarabba, C., Cocco, M., Di Bona, M. & Selvaggi, G. 1994. The 1989-1990 seismic swarm in the Alban Hills volcanic area, central Italy. J. Volcanol. Geotherm. Res. 61, 225-237.
Amato, A. & Chiarabba, C. 1995. Recent uplift of the Alban Hills Volcano (Italy): evidence for magmatic inflation? Geophys. Res. Lett. 22, 1985-1988.
Anzidei, M., Baldi, P., Casula, G., Galvani, A. Riguzzi, F & Zanutta, A. 1998. Evidence of active crustal deformation of the Colli Albani volcanic area (central Italy) by GPS surveys. J. Volcanol. Geotherm. Res. 80, 55-65.
Anzidei, M., Carapezza, M.L., Giordano, G., Lelli, M., Tarchi-ni, L. 2007. New discoveries on the Albano maar lake from high resolution bathymetry and dissolved CO2 budget (Colli Albani volcano, Central Italy). Submitted to J. Volcanol. Geotherm. Res.
Carapezza, M.L., Badalamenti, B., Cavarra, L. & Scalzo, A. 2003. Gas hazard assessment in a densely inhabited area of Colli Albani Volcano (Cava dei Selci, Roma). J. Volcanol. Geotherm. Res. 123, 81-94.
Carapezza, M.L., Barberi, F., Tarchini, L., Cavarra, L. & Gra-nieri, D. 2005a. Le emissioni gassose dell’area vulcanica dei Colli Albani. In: Nuovi dati sull’attività recente del cra-tere del lago Albano e sul degassamento dei Colli Albani. Atti Acc. Naz. Lincei 218, 229-242.
Carapezza, M.L., Cioni, R., Guidi, M., Lelli, M. & Tarchini, L. 2005b. Geochimica delle acque dei laghi Albano e Nemi. In: Nuovi dati sull’attività recente del cratere del lago Al-bano e sul degassamento dei Colli Albani. Atti Acc. Naz. Lincei 218, 243-248.
Carapezza, M.L., Lelli, M. & Tarchini, L. 2007. Geochemistry of the Albano and Nemi craters lakes in the volcanic district of Alban Hills (Rome, Italy). J. Volcanol. Geotherm. Res. Spec. Vol. “Volcanic Lakes” in press.
Carapezza, M.L. & Tarchini, L. 2007. Magmatic degassing of the Alban Hills volcano (Rome, Italy): geochemical evidence from accidental gas emission from shallow pressurized aquifers. Submitted to J. Volcanol. Geotherm. Res.
Chiarabba, C., Amato, A. & Delaney, P.T. 1997. Crustal structure, evolution, and volcanic unrest of the Alban Hills, Central Italy. Bull. Volcanol. 59, 161-170.
Chiodini, G., Cioni, R., Guidi, M., Raco, B., Marini, L., 1998. Soil CO2 flux measurements in volcanic and geothermal areas. Appl. Geochem. 13, 135–148.
Chiodini, G. & Frondini, F. 2001. Carbon dioxide degassing from the Alban Hills volcanic region, Central Italy. Chem. Geol. 177, 67-83.
Cioni, R., Guidi, M., Raco, B., Marini, L. & Gambardella, B. 2003. Water chemistry of Lake Albano (Italy). J. Volcanol. Geotherm. Res. 120, 179-195.
Funiciello, R., Giordano, G., De Rita, D., Carapezza, M. L., Barberi, F., 2002.L’attività recente del cratere del Lago Al-bano di Castelgandolfo, Rend. Acc. Naz. Lincei 9-13 (2002) 113-143.
Funiciello, R., Giordano, G. & De Rita, D. 2003. The Albano maar lake (Colli Albani Volcano, Italy): recent volcanic activity and evidence of pre-Roman Age catastrophic lahar events. J. Volcanol. Geotherm. Res. 123, 43-61.
Giggenbach, W.F., Minissale, A.A. & Scandiffio, G. 1998. Isotopic and chemical assessment of geothermal potential of the Colli Albani area, Latium, Italy. Appl. Geochem. 3, 475-486.
Pizzino, L., Galli, G., Mancini, M., Quattrocchi, F., Scarlato, P., 2002. Natural Gas Hazard (CO2, 222Rn) within a quiescent volcanic region and its relation with tectonics: the case of the Ciampino-Marino area, Alban Hills volcano, Italy. Nat. Hazard 00, 1-35.
Quattrocchi, F. & Calcara, M. 1998. Test-sites for earthquake prediction experiments within the Colli Albani region. Phys. Chem. Earth, 23, 915-920.
Salvi, S., Atzori, S., Tolomei, C., Allievi, J., Ferretti, A., Roc-ca, F., Prati, C., Stramondo, S. & Feuillet, N. 2004. Inflation rate of the Colli Albani volcanic complex retrieved by the permanent scatterers SAR interferometry technique. Geophys. Res. Lett. 31, 12 doi: 10.1029/2004GL020253.
Sinclair, A. J. 1974. Selection of threshold values in geochemical data using probability graphs. J. Geochem. Expl. 3, 129 -149.
Amato, A. & Chiarabba, C. 1995. Recent uplift of the Alban Hills Volcano (Italy): evidence for magmatic inflation? Geophys. Res. Lett. 22, 1985-1988.
Anzidei, M., Baldi, P., Casula, G., Galvani, A. Riguzzi, F & Zanutta, A. 1998. Evidence of active crustal deformation of the Colli Albani volcanic area (central Italy) by GPS surveys. J. Volcanol. Geotherm. Res. 80, 55-65.
Anzidei, M., Carapezza, M.L., Giordano, G., Lelli, M., Tarchi-ni, L. 2007. New discoveries on the Albano maar lake from high resolution bathymetry and dissolved CO2 budget (Colli Albani volcano, Central Italy). Submitted to J. Volcanol. Geotherm. Res.
Carapezza, M.L., Badalamenti, B., Cavarra, L. & Scalzo, A. 2003. Gas hazard assessment in a densely inhabited area of Colli Albani Volcano (Cava dei Selci, Roma). J. Volcanol. Geotherm. Res. 123, 81-94.
Carapezza, M.L., Barberi, F., Tarchini, L., Cavarra, L. & Gra-nieri, D. 2005a. Le emissioni gassose dell’area vulcanica dei Colli Albani. In: Nuovi dati sull’attività recente del cra-tere del lago Albano e sul degassamento dei Colli Albani. Atti Acc. Naz. Lincei 218, 229-242.
Carapezza, M.L., Cioni, R., Guidi, M., Lelli, M. & Tarchini, L. 2005b. Geochimica delle acque dei laghi Albano e Nemi. In: Nuovi dati sull’attività recente del cratere del lago Al-bano e sul degassamento dei Colli Albani. Atti Acc. Naz. Lincei 218, 243-248.
Carapezza, M.L., Lelli, M. & Tarchini, L. 2007. Geochemistry of the Albano and Nemi craters lakes in the volcanic district of Alban Hills (Rome, Italy). J. Volcanol. Geotherm. Res. Spec. Vol. “Volcanic Lakes” in press.
Carapezza, M.L. & Tarchini, L. 2007. Magmatic degassing of the Alban Hills volcano (Rome, Italy): geochemical evidence from accidental gas emission from shallow pressurized aquifers. Submitted to J. Volcanol. Geotherm. Res.
Chiarabba, C., Amato, A. & Delaney, P.T. 1997. Crustal structure, evolution, and volcanic unrest of the Alban Hills, Central Italy. Bull. Volcanol. 59, 161-170.
Chiodini, G., Cioni, R., Guidi, M., Raco, B., Marini, L., 1998. Soil CO2 flux measurements in volcanic and geothermal areas. Appl. Geochem. 13, 135–148.
Chiodini, G. & Frondini, F. 2001. Carbon dioxide degassing from the Alban Hills volcanic region, Central Italy. Chem. Geol. 177, 67-83.
Cioni, R., Guidi, M., Raco, B., Marini, L. & Gambardella, B. 2003. Water chemistry of Lake Albano (Italy). J. Volcanol. Geotherm. Res. 120, 179-195.
Funiciello, R., Giordano, G., De Rita, D., Carapezza, M. L., Barberi, F., 2002.L’attività recente del cratere del Lago Al-bano di Castelgandolfo, Rend. Acc. Naz. Lincei 9-13 (2002) 113-143.
Funiciello, R., Giordano, G. & De Rita, D. 2003. The Albano maar lake (Colli Albani Volcano, Italy): recent volcanic activity and evidence of pre-Roman Age catastrophic lahar events. J. Volcanol. Geotherm. Res. 123, 43-61.
Giggenbach, W.F., Minissale, A.A. & Scandiffio, G. 1998. Isotopic and chemical assessment of geothermal potential of the Colli Albani area, Latium, Italy. Appl. Geochem. 3, 475-486.
Pizzino, L., Galli, G., Mancini, M., Quattrocchi, F., Scarlato, P., 2002. Natural Gas Hazard (CO2, 222Rn) within a quiescent volcanic region and its relation with tectonics: the case of the Ciampino-Marino area, Alban Hills volcano, Italy. Nat. Hazard 00, 1-35.
Quattrocchi, F. & Calcara, M. 1998. Test-sites for earthquake prediction experiments within the Colli Albani region. Phys. Chem. Earth, 23, 915-920.
Salvi, S., Atzori, S., Tolomei, C., Allievi, J., Ferretti, A., Roc-ca, F., Prati, C., Stramondo, S. & Feuillet, N. 2004. Inflation rate of the Colli Albani volcanic complex retrieved by the permanent scatterers SAR interferometry technique. Geophys. Res. Lett. 31, 12 doi: 10.1029/2004GL020253.
Sinclair, A. J. 1974. Selection of threshold values in geochemical data using probability graphs. J. Geochem. Expl. 3, 129 -149.
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