Planar OH-bearing defects in mantle olivine
β Scribed by Kitamura, Masao; Kondoh, Shinji; Morimoto, Nobuo; Miller, Gregory H.; Rossman, George R.; Putnis, Andrew
- Book ID
- 109749955
- Publisher
- Nature Publishing Group
- Year
- 1987
- Tongue
- English
- Weight
- 437 KB
- Volume
- 328
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/328143a0
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Recent experiments (Miller et al. 1987; Bell and Rossman 1992; Bai and Kohlstedt 1992) have shown that olivine, the dominant mineral in the Earth's upper mantle, can contain substantial amounts of water in the form of OH. There is uncertainty, however, as to the mechanisms by which water dissolv
A series of Ti-substituted pyrope crystals was synthesized in the system MgO-(Na20) -A1203 -TiO2 -SIO2-H20 at Pa20=Ptot between 25 and 30 kbars and 975 and 1000 ~ C, using graphite heated piston-cylinder devices. The crystals, ranging up to 500 gm in diameter, were studied by X-ray, electron-micropr