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The origin of the fumaroles of La Solfatara (Campi Flegrei, South Italy)
Abstract The analysis of gaseous compositions from Solfatara (Campi Flegrei, South Italy) fumaroles since the early 1980s, clearly reveals a double thermobarometric signature. A first signature atExpand
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Carbon isotopic composition of soil CO2 efflux, a powerful method to discriminate different sources feeding soil CO2 degassing in volcanic-hydrothermal areas
Abstract A new method combining measurements of soil CO 2 flux and determinations of the carbon isotopic composition of soil CO 2 efflux was developed in order to qualitatively and quantitativelyExpand
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Magmas near the critical degassing pressure drive volcanic unrest towards a critical state
During the reawaking of a volcano, magmas migrating through the shallow crust have to pass through hydrothermal fluids and rocks. The resulting magma–hydrothermal interactions are still poorlyExpand
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Diffuse CO2 degassing at Vesuvio, Italy
At Vesuvio, a significant fraction of the rising hydrothermal−volcanic fluids is subjected to a condensation and separation process producing a CO2−rich gas phase, mainly expulsed through soilExpand
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Recent activity of Nisyros volcano (Greece) inferred from structural, geochemical and seismological data
This study summarizes the results of structural, geochemical and seismological surveys carried out at Nisyros volcano (Aegean Sea, Greece) during 1999–2001. Field mapping and mesostructuralExpand
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Mineral control of arsenic content in thermal waters from volcano-hosted hydrothermal systems: Insights from island of Ischia and Phlegrean Fields (Campanian Volcanic Province, Italy)
This paper documents arsenic concentrations in 157 groundwater samples from the island of Ischia and the Phlegrean Fields, two of the most active volcano-hosted hydrothermal systems from theExpand
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Correlated increase in CO2 fumarolic content and diffuse emission from La Fossa crater (Vulcano, Italy): Evidence of volcanic unrest or increasing gas release from a stationary deep magma body?
[1] The peculiarity of the quiescent La Fossa volcano is the occurrence of “crises” characterized by strong increases of fumarole T and output and by chemical changes indicative of an increasingExpand
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Long-term variations of the Campi Flegrei, Italy, volcanic system as revealed by the monitoring of hydrothermal activity
[1] Long-duration time series of the chemical composition of fumaroles and of soil CO2 flux reveal that important variations in the activity of the Solfatara fumarolic field, the most importantExpand
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Evidence of thermal-driven processes triggering the 2005–2014 unrest at Campi Flegrei caldera
Abstract An accelerating process of ground deformation that began 10 years ago is currently affecting the Campi Flegrei caldera. The deformation pattern is here explained with the overlapping of twoExpand
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Magma degassing as a trigger of bradyseismic events: The case of Phlegrean Fields (Italy)
[1] Phlegrean Fields is an active and densely populated caldera near Naples (Italy). Two major unrest episodes characterized its recent history, each leading to remarkable ground uplift and followedExpand
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