The hydrothermal system beneath Campi Flegrei is quantified by analyzing gas samples. At the Bocca Grande fumarole in Solfatara Crater large variations were measured in the amount of water vapor, hydrogen sulfide, nitrogen and hydrogen gases, methane, and hydrogen chloride. Some variations could be controlled partly by a change in heat flux from a deep source to a surficial hydrothermal system. The changes in gas chemistry since 1985 could be evidence of an aborted period of unrest, which was characterized as a change in gas emissions but did not progress far enough to produce uplift or earthquake swarms. -from Author

CHEMICAL AND ISOTOPIC GAS EMISSIONS AT CAMPI-FLEGREI - EVIDENCE FOR AN ABORTED PERIOD OF UNREST

TEDESCO, Dario
1994

Abstract

The hydrothermal system beneath Campi Flegrei is quantified by analyzing gas samples. At the Bocca Grande fumarole in Solfatara Crater large variations were measured in the amount of water vapor, hydrogen sulfide, nitrogen and hydrogen gases, methane, and hydrogen chloride. Some variations could be controlled partly by a change in heat flux from a deep source to a surficial hydrothermal system. The changes in gas chemistry since 1985 could be evidence of an aborted period of unrest, which was characterized as a change in gas emissions but did not progress far enough to produce uplift or earthquake swarms. -from Author
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11591/224174
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