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Sulfur Variations in Glasses from Volcanic Rocks: Effect of Melt Composition on Sulfur Solubility

Ducea, Mihai N. and McInnes, Brent I. A. and Wyllie, Peter J. (1994) Sulfur Variations in Glasses from Volcanic Rocks: Effect of Melt Composition on Sulfur Solubility. International Geology Review, 36 (8). pp. 703-714. ISSN 0020-6814. doi:10.1080/00206819409465483.

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A worldwide data set of major element and sulfur analyses of undegassed lavas, pumices, and melt inclusions from 14 volcanic locations was selected to investigate the compositional effects on sulfur solubility in magmas. We utilized analyses on calc-alkaline, alkaline, and tholeiitic rocks, with a range of 3400 ppm S variation. There is a strong correlation between chemical composition and the sulfur concentration: the less silicic and the more alkaline the rocks are, the more dissolved sulfur they can carry. Also, sulfur concentration is higher in rocks that represent less polymerized melts. Elemental correlations between FeO and S, well-defined for tholeiites, do not hold for alkaline melts. The compositional effects are at least as important as the better-known pressure, temperature, and f(O_2) dependencies.

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Ducea, Mihai N.0000-0002-5322-0782
Additional Information:© 1994 V.H. Winston & Son, Inc. This research was supported by the Earth Science Section of the National Science Foundation, grant EAR-9303967. We thank Malcolm Rutherford and Gary Ernst for their constructive comments and criticisms of an earlier version of this paper. Caltech Division of Geological and Planetary Sciences contribution number 5518.
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Caltech Division of Geological and Planetary Sciences5518
Issue or Number:8
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64962
Deposited By: Tony Diaz
Deposited On:02 Mar 2016 21:31
Last Modified:10 Nov 2021 23:38

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