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We have analyzed the carbon isotopic composition of CO2, methane, ethane, propane and n-butane, the hydrogen isotopic composition of methane as well as total concentrations of gas constituents contained in the Mediterranean volcanic–hydrothermal discharges of Nisyros (Greece), Vesuvio, La Solfatara, Ischia and Pantelleria (all Italy) to determine the origin of the hydrocarbons. Isotopic criteria conventionally...
The genetic relationship between carbon-bearing species (CO, CO 2 , CH 4 , C 2 H 6 , C 3 H 8 , C 2 H 4 and C 3 H 6 ) was investigated in volcanic-hydrothermal gases emitted from Nisyros (Greece), Vesuvio, La Solfatara (Campi Flegrei) and Pantelleria (all Italy).Apparent carbon isotopic temperatures of the CH 4 ...
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