Granite and granitic pegmatite melts: volumes and viscosities
Published:January 01, 1996
D. B. Dingwell, K.-U. Hess, R. Knoche, 1996. "Granite and granitic pegmatite melts: volumes and viscosities", The Third Hutton Symposium on the Origin of Granites and Related Rocks, M. Brown, P.A. Candela, D.L. Peck, W.E. Stephens, R.J. Walker, E-an Zen
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Progress in the understanding of the volumes and viscosities of granitic and related pegmatitic melts generated by experimental studies are reviewed. The results of a series of investigations of the volumes and viscosities of melts derived from a haplogranitic base composition, HPG8, located near the 2 kbar water-saturated minimum melt composition in the albite-orthoclase-silica system are discussed. Melt volumes, obtained using a combination of dilatometric and calorimetric methods at 1 atm and relatively low temperatures yield an internally consistent set of partial molar volumes for 18 components in granitic melts. These partial molar volumes, combined with an estimate for water,...