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This experimental study examines the kinetics of silicate liquid immiscibility, and the effects of melt chemistry on phase separation. We used three synthetic compositions in the systems K 2 O–FeO–Al 2 O 3 –SiO 2 and K 2 O–CaO–FeO–Al 2 O 3 –SiO 2 . Two of them lie inside the known miscibility gaps on the joins fayalite–orthoclase–silica...
The highly siderophile elements (HSE's: Ru, Rh, Pd, Re, Os, Ir, Pt and Au) are those elements with distribution coefficients between Fe-rich metal and silicate phases which exceed 10 4 . The large magnitude of these distribution coefficients makes them exceedingly difficult to measure experimentally. We describe a new experimental campaign aimed at obtaining reliable values of D m ...
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