Viscous flow behavior of four iron-containing silicates with alumina, effects of composition and oxidation condition

Details Viscous flow behavior of four iron-containing silicates with alumina, effects of composition and oxidation condition Viscous flow behavior of four iron-containing silicates with alumina, effects of composition and oxidation condition

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983lpsc...13..880k&link_type=abstract

In: Lunar and Planetary Science Conference, 13th, Houston, TX, March 15-19, 1982, Proceedings. Part 2. (A83-21281 07-91) Washing

Mathematics

Logic

Aluminum Oxides, Iron Compounds, Magma, Oxidation, Silica Glass, Viscous Flow, Chemical Composition, Silicates, Temperature Effects, Viscometry

Scientific paper

The viscosity of a magma is an important parameter in connection with its effect on geologic processes such as melt segregation, magma vesiculation, and crystal fractionation. Though most models of geologic processes assume relatively low values for the magma viscosity less than 10,000 poise, it would be useful to have an empirical model for estimating viscosities when the process occurs during continuous cooling to a temperature region where the viscosity is expected to be very high. The considered work has been carried out to provide the experimental measurements of viscosity at low temperatures which would be used in formulating the empirical model. Ten iron-containing silicate compositions have been investigated by Klein et al. (1981), and four of these compositions have been selected for the present study with alumina. The study involves substitutions of Al2O3 for FeOx at Na2O/Al2O3 moles greater than one. For the four iron-containing silicate glasses with alumina, the viscosity at a given temperature is found to increase with increasing (Fe + Al).

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