Infrared Study of the Hydroxyl Bands in Clinoamphiboles

• Roger G. Burns

  Department of Mineralogy and Petrology, University of Cambridge, Cambridge, England

• Roger G. J. Strens

  Department of Mineralogy and Petrology, University of Cambridge, Cambridge, England

抄録

Sharp single peaks in the fundamental and first-overtone bands of the O-H stretching vibration in pure Mg 2+ and Fe 2+ amphiboles split into a maximum of four sharp peaks, corresponding to hydroxyl groups linked to 3 Fe, 2 Fe + Mg, 2 Mg + Fe, and 3 Mg, in mixed Fe 2+ -Mg 2+ amphiboles. Within any one solid-solution series, the frequencies of these peaks can be correlated with the electronegativity of ions in the M 1 and M 3 positions, and differences between series can be correlated with the size of ions in the M 4 position. The O-H vector lies approximately normal to z in the (010) plane. The distribution of Fe 2+ and Mg 2+ ions between the (M 1 ,M 3 ) and (M 2 M 4 ) positions in the cummingtonite-grunerite series, and between the (M 1 ,M 3 ) and M 2 positions in the tremolite-ferroactinolite series, has also been estimated.

収録刊行物

• Science

  Science 153 (3738), 890-892, 1966-08-19

  American Association for the Advancement of Science (AAAS)

キーワード

• Multidisciplinary

詳細情報

• CRID: 1363388844213536256
• NII論文ID: 30020489534
• DOI: 10.1126/science.153.3738.890
• ISSN: 10959203
• ISSN: 00368075
• ISSN: http://id.crossref.org/issn/00368075
• Web Site: https://www.science.org/doi/pdf/10.1126/science.153.3738.890
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  • Crossref
  • CiNii Articles