Published July 1, 1991
| public
Journal Article
The Intensity of Amphibole OH Bands in the Infrared Absorption Spectrum
- Creators
- Skogby, Henrik
-
Rossman, George R.
Abstract
Polarized IR spectra of single-crystals of amphiboles show that the molar absorptivity of the fundamental vibrational OH band is strongly wavenumber dependent, The intensity increases by a factor of 1 .6 from 3674 cm^(-1) (tremolite endmember; MgMgMg) to 3618 cm^(-1) (grunerite endmember; FeFeFe). Spectra obtained from Ca and Fe-Mg amphiboles consist of sharp, well-resolved bands on a well-defined background. The high intensity of the OH bands in Ca and Fe-Mg amphiboles makes it sometimes necessary to thin the samples to under 2 µm thickness, whereas alkali amphiboles can be measured at 25-50 µm thickness.
Additional Information
© 1991 Springer-Verlag. Received September 6, 1990; Accepted February 11, 1991. We thank W.A. Dollase (UCLA), C.B. Sclar (Lehigh University) and F.J. Wicks (Royal Ontario Museum) for providing samples. The study was supported by the National Science Foundation through grants EAR 8618200 and EAR8916064, the Knut and Alice Wallenberg Foundation through a postdoctoral fellowship to H.S., and the Swedish Natural Science Research Council.Additional details
- Eprint ID
- 38342
- Resolver ID
- CaltechAUTHORS:20130508-083601512
- EAR 8618200
- NSF
- EAR8916064
- NSF
- Knut and Alice Wallenberg Foundation
- Swedish Natural Science Research Council
- Created
-
2013-05-13Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences