Solubility of water in granite magmas

Abstract

Geologists have been deeply concerned with the volatile constituents of magmas, for these constituents play important roles in volcanology, in ore‐deposition, and in other igneous phenomena. Of these volatile constituents water is the most abundant. In this paper data are presented on the solubility of water in granite glass as a function of pressure from 500 to 4,000 bars (1,000 bars = 1 kilobar = 986.97 atmospheres = 1,019.8 kg per cm 2 ) at 900°C and as a function of temperature from 600 to 1,200°C at 980 bars.