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Bubble nucleation in H2O-CO2 bearing basaltic melts: results of high temperature decompression experiments
26 Apr 2013 | Contributor(s): Nolwenn Le Gall, Michel Pichavant, Alain Burgisser
AGU Meeting, San Francisco 2012Previous experiments have shown that mechanisms of basalt degassing are strongly contrasted when gas bubbles are present or when they are absent. Thus, experimental information on the kinetics of bubble nucleation in basaltic melts is needed, and high temperature...
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CO2-rich melts generated during basalt magma ascent and degassing
26 Apr 2013 | Contributor(s): Michel Pichavant, Ida Di Carlo, Silvio Rotolo, Bruno Scaillet, Alain Burgisser, Nolwenn Le Gall, Caroline Martel
AGU Meeting San Francisco 2012To test mechanisms of basaltic magma degassing, experimental decompressions of volatile-bearing (2.7-3.8 wt% H2O, 600-1300 ppm CO2) Stromboli melts have been performed from 250-200 to 50-25 MPa at 1180-1140°C. Ascent rates were varied from 0.25 to ~ 1.5 m/s. Both the...
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Solubility of sulfur in basaltic melts
26 Apr 2013 | Contributor(s): Marina Aletti, Michel Pichavant
VUELCO Conference, 2013, Barcelona (Spain)Sulfur is the third most abundant volatile element in magmatic melts, after H2O and CO2. Involved as a chief actor in many igneous processes, from the volcanic degassing to the formation of ore deposits, and due to the strong dependence between speciation...
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Bubble nucleation in basaltic melts: results of high temperature decompression experiments
26 Apr 2013 | Contributor(s): Nolwenn Le Gall, Michel Pichavant
VUELCO Conference, 2013, Barcelona (Spain)Previous experiments have demonstrated that mechanisms of basalt degassing are strongly contrasted when gas bubbles are present or when they are absent. Consequently, experimental information on the kinetics of bubble nucleation in basaltic melts is...
