Quantitative Determination of Gaseous Phase Compositions in Fluid Inclusions by Raman Microspectrometry |
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| Authors: | Angel Carmelo Prieto Alexandra Guedes Armanda Dória Fernando Noronha Juan Jiménez |
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| Institution: | 1. GdS Optronlab, Parque Científico UVa , Universidad Valladolid , Spain prieto@fmc.uva.es;3. Centro de Geologia da Universidade do Porto e Departamento de Geociências, Ambiente e Ordenamento do Território, Faculdade de Ciências , Universidade do Porto , Portugal;4. GdS Optronlab, Parque Científico UVa , Universidad Valladolid , Spain |
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| Abstract: | ABSTRACT Raman microspectrometry has been revealed as a powerful technique for performing qualitative analysis and estimation of relative molar fractions of the gaseous species present in minerals fluid inclusions. In this work, the methodology and calibration procedures used for the quantification of the different species in fluid inclusions are described, paying special attention to the estimation of the CO2 molar fraction. A discussion about the Fermi resonance of CO2 vibrations (ν1-2ν2; 1285–1388 cm?1) is also included. |
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| Keywords: | fluid inclusions molar fractions Raman microspectrometry |
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