![]() ![]() it spans most of the compositional range found in naturally-occurring volcanic rocks.Where the M's and N's are combinations of mol % oxides. Where A is a constant independent of composition and B and C are adjustable parameters.Ĭompositional dependence is ascribed to B and C as linear combinations of oxide components(mol%) and several multiplicative oxide cross-terms: ![]() Temperature dependence of viscosity (η) is modelled by the VFT equation Here we present a model for predicting the non-Arrhenian temperature dependence of viscosity fornaturally-occurring silicate melts at atmospheric pressure (10 5 Pa). Earth & Planetary Science Letters, 271, 123-134 Silicate Melt Viscosity Calculator Silicate Melt Viscosity Calculator Giordano D,Russell JK, & Dingwell DB (2008) Viscosity of Magmatic Liquids: AModel.
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