Evaluation of Caldera Hosted Geothermal Potential during Volcanism and Magmatism in Subduction System, NE Japan

Figure 6

Water content and CO₂ absorbance for the studied MIs. (a) Transmission FT–IR measurement results showing the spectrum of each measurement for the MIs. The 5230 and 4500 cm⁻¹ peaks were used to determine the water content of the MIs. (b) CO₂ absorbance spectra show no evidence for CO₂ in the samples.

(a)

(b)