The Role Of P205 In Silicate Melts

Phase equilibria data in the systems Si02-P205, P205-MxOy, and p205 MxOy-SiO2 are employed in conjunction with chromatographic and spectral data to investigate the role of P205 in silicate melts. Such data indicate that the behaviour of P205 is complex - it depolymerizes pure Si02 melts by entering the network as a four-fold coordinated cation, but polymerizes melts in which an additional melt cation other than silicon is present. The effect of this polymerization is apparent in the widening of the granite-ferrobasalt two-liquid solvus.

Author
F J Ryerson
Origin
Institution Of Washington, Usa
Journal Title
Geochimica Et Cosmochimica Acta 44 1980 611-624
Sector
Primary Papers
Class
PP 101

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The Role Of P205 In Silicate Melts
Geochimica Et Cosmochimica Acta 44 1980 611-624
PP 101
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