Skip to main content
SpringerLink
Log in

Geochemical surveillance of the Solfatara of Pozzuoli (Phlegraean Fields) during 1983

  • Published:
Bulletin Volcanologique Aims and scope Submit manuscript

Abstract

Geochemical surveillance of the Phlegraean Fields area has been intensified since 1983, in response to the increased uplift rate (brady-seismic activity).

Fumarolic gases from Solfatara (Pozzuoli) were sampled and analyzed monthly. A Reducing Capacity (RC) monitoring unit was installed at Soffione, the most active fumarole in the Solfatara system.

The preliminary analysis of the RC temporal variations suggest they are consistent with the rate of the seismic energy release.

The composition of fumarolic gases indicates that the equilibrium temperature and pressure are higher than those of sampling.

The observed variations in CH4 content are explained as an increase of pressure (from 1982 to the end of 1983) of about 70% at an extimated depth of 3–3.5 km.

Finally, during 1983, there were no geochemical indications of both rising magma and significant accumulation of energy at shallow depth.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Bruni, P., Chellini, W., Sbrana, A., Verdiani, G., 1983,Esplorazione profonda area S. Vito (Pozzuoli — NA) — Pozzo S. Vito 1. Europ. Geoth. Update. 3th Int. Seminar. Extended Seminares, Munich.

  • Carapezza, M., Nuccio, P.M., Valenza, M., 1980,High Pressure Science and Technology. p. 90–103.

  • —— —— ——, 1981,Genesis and Evolution of the Fumaroles of Vulcano (Aeolian Islands, Italy): a Geochemical Model. Bull. Volcanol.,44-3, p. 547–564.

    Google Scholar 

  • Corrado, G., Guerra, I., Lo Bascio, A., Luongo, G., Rapoldi, R., 1977,Inflation and Microearthquake Activity of Phlegraean Fields, Italy. Bull. Volcanol.,40-3, p. 1–20.

    Google Scholar 

  • Dall'Aglio, M., Martini, M., Tonani, F., 1972, Rilevamento geochimico delle emanazioni vulcaniche dei Campi Flegrei. La Ricerca Scientifica, C.N.R. Roma,83, p. 132–181.

    Google Scholar 

  • Ellis, A.J., 1957,Chemical Equilibrium in Magmatic Gases. Am. J. Sci.,255, p. 416–431.

    Google Scholar 

  • Heald, E.F., 1968,Graphical Representation of Homogeneous Chemical Equilibria in Volcanic Gas System. Am. J. Sci.,266, p. 389–401.

    Google Scholar 

  • Italiano, F., Nuccio, P.M., Valenza, M., 1984,Geothermal Energy Release at the Solfatara of Pozzuoli (Phlegraean Fields): Phreatic and Phreato-magmatic Explosion Risk Implications. Bull. Volcanol., this issue.

  • Niccolini, A., 1829, Rapporto sulle acque che invadono il pavimento dell'antico edifizio detto il tempio di Giove Serapide. Stamperia Reale, Napoli,IV, p. 46.

    Google Scholar 

  • Parascandola, A., 1946, Il Monte Nuovo ed il Lago Lucrino. Boll. Soc. Natur. in Napoli,55, p. 151–312.

    Google Scholar 

  • Penta, F., 1955,Caratteristiche e genesi delle manifestazioni esalativo-idrotermali naturali. Atti XLV Riunione Soc. Ital. Prog. Sci. Napoli. Editrice Italia-Roma, p. 1–31.

  • Robie, R.A., Waldbaum, D.R., 1968,Thermodynamic Properties of Minerals and Related Substances at 298.15°K and One Atmosphere Pressure and at Higher Temperatures. Bull. U.S.G.S.1259.

  • Rosi, M., Sbrana, A., Principe, C., 1983,The Phlegraean Fields: Structural Evolution, Volcanic History and Eruptive Mechanism. Journ. of Volc. and Geoth. Res.,17, 1/4, p. 273–288.

    Google Scholar 

  • Sato, M., Malone, S.D., Moxham, R.M. andMc Lane, J.E., 1976,Monitoring of Fumarolic Gas at Sherman Crater, Lount Baker, Washington. EOS, Am. Geoph. Union Trans.,57, p. 88–89.

    Google Scholar 

  • ——, 1981,Continuous Monitoring of Hydrogen on the South Flank of Mount St. Helens. U.S.G.S. Professional Paper,1250, p. 209–220.

    Google Scholar 

  • Sicardi, L., 1979, Alcune osservazioni sulle tre fasi storiche del bradisismo puteolano rivelate dal Serapeo di Pozzuoli (Napoli). Bull. Soc. Natur., Napoli,88, p. 27–47.

    Google Scholar 

  • Tonani, F., 1973,Equilibria That Control the Hydrogen Content of Geothermal Gases. Unpublished report, Philips Petroleum Co. Geothermal Operations.

  • --,Valenza, M., 1983,Chemical Composition of Fumarolic Gases of Momotombo Volcano. Symposium on Geochemical Surveillance of Volcanic and Seismic Activities, Palermo, 5–12 May, 1983.

  • Vielstich, W., 1970,Fuel Cells. London, Wiley Interscience, p. 1–20.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Istituto di Mineralogia, Petrografia e Geochimica, Università di Palermo, Italy

    M. Carapezza, P. M. Nuccio & M. Valenza

Authors
  1. M. Carapezza
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. M. Nuccio
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. Valenza
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Carapezza, M., Nuccio, P.M. & Valenza, M. Geochemical surveillance of the Solfatara of Pozzuoli (Phlegraean Fields) during 1983. Bull Volcanol 47, 303–311 (1984). https://doi.org/10.1007/BF01961561

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01961561

Keywords

Search

Navigation