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Laser Raman spectroscopic measurements of water in unexposed glass inclusions

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Thomas, R, Kamenetsky, VS and Davidson, P 2006 , 'Laser Raman spectroscopic measurements of water in unexposed glass inclusions' , American Mineralogist, vol. 91, No. 2-3 , pp. 467-470 , doi: 10.2138/am.2006.2107.

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Abstract

A method is proposed for determining the water concentration in silicate melt inclusions (MI) by confocal rnicro-Raman spectroscopy, Without exposing the inclusions for measurements (a prerequisite of all previous methods). The latter is important for extremely water-rich MI (e.g., those in evolved granites and pegmatites), which would loose H2O on exposure. Furthermore, this technique permits determination of the water concentration in it single MI. We use a comparative technique, determining the total water content of a sample against a reference glass of known water content. Because this process is non-destructive it does not preclude the subsequent use of other analytical techniques.

Item Type: Article
Authors/Creators:Thomas, R and Kamenetsky, VS and Davidson, P
Keywords: raman spectroscopy; water determination; unexposed silicate melt inclusions; water in glasses; melt inclusions; rhyolitic glasses; H2O
Journal or Publication Title: American Mineralogist
ISSN: 0003-004X
DOI / ID Number: 10.2138/am.2006.2107
Additional Information:

http://ammin.geoscienceworld.org/cgi/content/abstract/91/2-3/467

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