Figure 6 | Scientific Reports

Figure 6

From: Seafloor doming driven by degassing processes unveils sprouting volcanism in coastal areas

Figure 6

δ13C of CO2 vs. CO2/3He plot of the gas EM35, EM61 and EM52BIS (red dots, data in Table S1).

The mixing lines between a mantle composition and the end-members of limestone and organic sediment22 are reported for comparison. The boxes represent the fields of the fumaroles of Ischia Island, Campi Flegrei and Somma-Vesvius59,60,61. BdM samples are on the mixing trend of the Campanian volcanoes. The end-member gases of the mixing line are a mantle source and the gases produced by decarbonation reaction of carbonate minerals.

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