The distribution of rare earth elements between monzogranitic melt and the aqueous volatile phase in experimental investigations at 800 degrees C and 200 MPa

The partitioning of the rare earth elements between a peraluminous monzogranitic melt and a chloride-bearing, sulfur- and carbon dioxide-free, aqueous volatile phase was examined experimentally as a function of chloride and major element concentrations at 800 degreesC and 200 MPa. The light rare earth elements (e.g. La, Ce) partition into the aqueous volatile phase to a greater extent than the heavy rare earth elements (e.g. Yb, Lu).