Figure 3
From: The emissions of CO2 and other volatiles from the world’s subaerial volcanoes
CO2 GSA method commonly applied to partitioning complex distribution of soil CO2 flux data in different log normal populations27 applied to weak emitter volcanoes using data from Table S2. Also shown are several volcanoes that span a range of CO2 fluxes. Two populations are identified: population (A) hydrothermal with mean CO2 flux of 0.013 Tg CO2/y and (B) magmatic with mean CO2flux of 0.156 Tg CO2/y. These populations are used to extrapolate to other weak emitter volcanoes for which no data is available.
