Fig. 3From: Total (fumarolic + diffuse soil) CO2 output from Furnas volcanoFurnas Village fumarolic site. The positions of GasFinder unit and retro-reflectors are shown with letters and numbers, respectively. The position of Multi-GAS measurement-point (blue triangle) and two main degassing vents “CG” and “CdA” (red crossed-circles) are also given. CG, Caldeira Grande, CdA Caldeira do AsmodeuBack to article page