Abstract : Experiments were conducted to determine CO2 solubilities in alkali basalts from Vesuvius, Etna and Stromboli volcanoes. The basaltic melts were equilibrated with nearly pure CO2 at 1,200°C under oxidizing conditions and at pressures ranging from 269 to 2,060 bars. CO2 solubility was determined by FTIR measurements. The results show that alkalis have a strong effect on the CO2 solubility and confirm and refine the relationship between the compositional parameter Π devised by Dixon (Am Mineral 82:368-378, 1997) and the CO2 solubility.
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Priscille Lesne, Bruno Scaillet, Michel Pichavant, Jean-Michel Bény. The carbon dioxide solubility in alkali basalts: an experimental study. Contributions to Mineralogy and Petrology, Springer Verlag, 2011, 162 (1), pp.153-168. ⟨10.1007/s00410-010-0585-0⟩. ⟨insu-00534729⟩