Assessment of Chaves Low-Temperature CO₂-Rich Geothermal System (N-Portugal) Using an Interdisciplinary Geosciences Approach

Figure 6

δ²H vs. δ¹⁸O relationship of Chaves low-temperature CO₂-rich geothermal waters. The δ¹⁸O and δ²H values of the cold CO₂-rich mineral waters from Vilarelho da Raia, Vidago, and Pedras Salgadas areas are also plotted. Figure 6 is reproduced from Marques et al. (2006) [under the Creative Commons Attribution License/public domain].