Contribution of IR spectroscopy to the problem of water in the Earth's mantle
- Author(s)
- Anton Beran
- Abstract
The close packed structures of nominally anhyd. mineral phases, likely to be present within the Earth's mantle (olivines, pyroxenes, garnets, and MgSiO3 perovskite), may offer important storage sites for H and these trace H-bearing phases may strongly influence the phys. properties of the Earth's mantle. IR spectroscopy provides an extremely sensitive method for detecting trace H bonded to O. Using polarized radiation, the pleochroic scheme of OH absorption bands measured on oriented crystal sections allows to impose defined constraints on the orientation of OH dipoles in the structure. A attempts were made to calibrate the IR spectra with independent abs. methods.
- Organisation(s)
- Department of Mineralogy and Crystallography
- Pages
- 523-538
- No. of pages
- 16
- Publication date
- 1999
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105116 Mineralogy, 104026 Spectroscopy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/contribution-of-ir-spectroscopy-to-the-problem-of-water-in-the-earths-mantle(45f8ed58-daa3-44a6-be05-7b36adb83cf1).html