Carbonate stability and £ uid composition in subducted oceanic crust : an experimental study on H 2 O ^ CO 2-bearing basalts

@inproceedings{Molina1999CarbonateSA,
  title={Carbonate stability and £ uid composition in subducted oceanic crust : an experimental study on H 2 O ^ CO 2-bearing basalts},
  author={Francesco S Molina},
  year={1999}
}
Carbonates and hydrates are common products of the alteration of the upper basaltic crust in modern oceans. However, phase relationships and devolatilization reactions in altered CO2-bearing metabasalts during the subduction process are still poorly known. A series of fO2-buffered piston cylinder experiments were performed on three basaltic model compositions in the presence of a H2O^CO2 mixed fluid, at pressures from 1.0 to 2.0 GPa and temperatures from 665 to 7303C. Experimental results on a… CONTINUE READING