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Authors: Baker, D. R.*
Balcone-Boissard, H.*
Title: Halogen diffusion in magmatic systems: Our current state of knowledge
Title of journal: Chemical Geology
Publisher: Elsevier
Issue Date: 2008
DOI: 10.1016/j.chemgeo.2008.10.010
Keywords: Halogens
Magmatic processes
Volcanic gas
Abstract: Diffusion of halogens has the potential to influence petrogenetic processes in magma chambers and conduit degassing processes. This contribution reviews our current state of knowledge concerning halogen diffusion and the influence of halogens on the diffusion of major elements in silicate melts. The addition of halogens to silicate melts at common, natural concentration levels will have little effect on the diffusion of major elements. However, the differences between the diffusivity of water, the diffusivities of halogens, and the diffusivity of sulfur are significant enough that during melt inclusion entrapment, or during rapid bubble or crystal growth, diffusive fractionation betweenwater and the halogens, and between halogens and sulfur, are expected to occur and can influence the compositions of melt inclusions, crystals and volcanic gases.
Appears in Collections:04.08.02. Experimental volcanism
Papers Published / Papers in press

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