Infrared spectroscopy of hydrous glasses of arc magma compositions.

• Yamashita Shigeru

  Institute for Study of the Earth's Interior, Okayama University

• Kitamura Toshihiro

  Institute for Study of the Earth's Interior, Okayama University

• Kusakabe Minoru

  Institute for Study of the Earth's Interior, Okayama University

Bibliographic Information

Other Title

• Infrared spectroscopy of hydrous glasse

Abstract

Molar absorption coefficients of water in glasses of arc magma compositions have been determined for ∼2.8 μm, ∼2.2 μm, and ∼1.9 μm bands. Excellent agreement was found between the water contents calculated from the absorption peak heights and those determined by H₂ manometry when the following molar absorption coefficients (m³/mol m) are used for different glass compositions: ε_2.8μm=6.4±0.1, ε_2.2μm=0.085±0.007, and ε_1.9μm=0.084±0.006 for tholeiite and high-Al basalt glasses; ε_2.8μm=6.8±0.1, ε_2.2μm=0.094±0.006, and ε_1.9μm=0.16±0.03 for dacite glass. With IR spectroscopy using these coefficients, water concentrations up to ∼3 wt.% in the arc basalt and dacite glasses can be determined accurately.

Journal

• GEOCHEMICAL JOURNAL

  GEOCHEMICAL JOURNAL 31 (3), 169-174, 1997

  GEOCHEMICAL SOCIETY OF JAPAN

Keywords

• Geochemistry and Petrology
• Geophysics

Details

• CRID: 1390001204550642560
• NII Article ID: 130003904579
• NII Article ID: 10008801613
• NII Book ID: AA00654975
• DOI: 10.2343/geochemj.31.169
• COI: 1:CAS:528:DyaK2sXjvV2ksL0%3D
• ISSN: 18805973
• ISSN: 00167002
• ISSN: http://id.crossref.org/issn/00167002
• NDL BIB ID: 4231176
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4231176
• Web Site: http://www.jstage.jst.go.jp/article/geochemj1966/31/3/31_3_169/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed