Sulfur diffusion in basaltic melts |
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| Authors: | Carmela Freda Don R Baker Piergiorgio Scarlato |
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| Institution: | 1 Sezione di Sismologia e Tettonofisica, Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Roma, Italy
2 Department of Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, Canada |
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| Abstract: | We measured the diffusion coefficients of sulfur in two different basaltic melts at reduced conditions (i.e., in the sulfide stability field), temperatures from 1225°C to 1450°C, pressures of 0.5 and 1 GPa, and water concentrations of 0 and 3.5 wt%. Although each melt is characterized by slightly different sulfur diffusion coefficients, the results can be combined to create a general equation for sulfur diffusion in anhydrous basalts:
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