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Fig. 1 | Earth, Planets and Space

Fig. 1

From: Total (fumarolic + diffuse soil) CO2 output from Furnas volcano

Fig. 1

Location of the studied sites. a Azores archipelago location and b Soil CO2 flux map of Furnas volcano (modified from Viveiros et al. 2010). Letters A, B, C, and D represent the main diffuse degassing structures defined at Furnas volcano. Letters A and B (with the associated black squares) represent, respectively, Furnas Lake and Furnas Village fumarolic fields, the areas studied in this work. Graded colored circles represent soil CO2 flux measurement sites that were not used to interpolate the degassing areas (colored grid); red full and dashed lines represent, respectively, observed and inferred tectonic structures; the bold black lines represent the older caldera limit and gray curves represent crater limits

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