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Laser Raman spectroscopic measurements of water in unexposed glass inclusions

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Thomas, R and Kamenetsky, VS and Davidson, P (2006) Laser Raman spectroscopic measurements of water in unexposed glass inclusions. American Mineralogist, 91 (2-3). pp. 467-470. ISSN 0003-004X

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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
Keywords: raman spectroscopy; water determination; unexposed silicate melt inclusions; water in glasses; melt inclusions; rhyolitic glasses; H2O
Journal or Publication Title: American Mineralogist
Page Range: pp. 467-470
ISSN: 0003-004X
Identification Number - DOI: 10.2138/am.2006.2107
Additional Information: http://ammin.geoscienceworld.org/cgi/content/abstract/91/2-3/467
Date Deposited: 10 Aug 2006
Last Modified: 18 Nov 2014 03:11
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