Analytical techniques for volatiles: A case study using intermediate (andesitic) glasses

P. L. King, T. W. Vennemann, J. R. Holloway, Richard Hervig, J. B. Lowenstern, J. F. Forneris

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

Small-scale analyses of volatiles in minerals and glasses provide information on how voltiles influence high-temperature geologic processes and low-temperature alteration processes. Four techniques for determining the C-O-H volatile contents of andesitic glasses are compared: manometry, secondary ion mass spectrometry, micro-Fourier transform infrared spectroscopy, and a technique where the H2O content is calculated using the difference between electron microprobe analysis totals and 100% sum. We present a method to determine the H content of a wide range of glass and mineral compositions using secondary ion mass spectrometry and a model for calibration factors. The extinction coefficients for H-O volatile contents in intermediate composition synthetic glasses are determined, and it is demonstrated that C-O speciation changes as total H2O content increases, with molecular CO2 decreasing, CO2- 3 increasing, and carbonate peak splitting increasing. For glasses with low H2O content and oxy-substituted minerals, the methods of choice for volatile analysis are secondary ion mass spectrometry or micro-Fourier transform infrared spectroscopy.

Original languageEnglish (US)
Pages (from-to)1077-1089
Number of pages13
JournalAmerican Mineralogist
Volume87
Issue number8-9
StatePublished - Aug 2002
Externally publishedYes

Fingerprint

analytical method
glass
Glass
Secondary ion mass spectrometry
Minerals
mass spectrometry
secondary ion mass spectrometry
FTIR spectroscopy
minerals
ion
mineral
infrared spectroscopy
extinction coefficient
Carbonates
Electron probe microanalysis
Chemical analysis
electron probe analysis
Calibration
carbonates
extinction

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

King, P. L., Vennemann, T. W., Holloway, J. R., Hervig, R., Lowenstern, J. B., & Forneris, J. F. (2002). Analytical techniques for volatiles: A case study using intermediate (andesitic) glasses. American Mineralogist, 87(8-9), 1077-1089.

Analytical techniques for volatiles : A case study using intermediate (andesitic) glasses. / King, P. L.; Vennemann, T. W.; Holloway, J. R.; Hervig, Richard; Lowenstern, J. B.; Forneris, J. F.

In: American Mineralogist, Vol. 87, No. 8-9, 08.2002, p. 1077-1089.

Research output: Contribution to journalArticle

King, PL, Vennemann, TW, Holloway, JR, Hervig, R, Lowenstern, JB & Forneris, JF 2002, 'Analytical techniques for volatiles: A case study using intermediate (andesitic) glasses', American Mineralogist, vol. 87, no. 8-9, pp. 1077-1089.
King PL, Vennemann TW, Holloway JR, Hervig R, Lowenstern JB, Forneris JF. Analytical techniques for volatiles: A case study using intermediate (andesitic) glasses. American Mineralogist. 2002 Aug;87(8-9):1077-1089.
King, P. L. ; Vennemann, T. W. ; Holloway, J. R. ; Hervig, Richard ; Lowenstern, J. B. ; Forneris, J. F. / Analytical techniques for volatiles : A case study using intermediate (andesitic) glasses. In: American Mineralogist. 2002 ; Vol. 87, No. 8-9. pp. 1077-1089.
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