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Raman spectroscopic study of hydrous wadsleyite (beta-Mg2SiO4) to 50 GPa

Abstract:

Raman spectra of hydrous β-Mg2SiO4 (1.65 wt% H2O) have been measured in a diamond-anvil cell with helium as a pressure-transmitting medium at room temperature to 50 GPa. We observe three OH-stretching modes, a doublet with components at 3329 and 3373 cm-1, which decrease linearly with pressure, and a single mode at 3586 cm-1, which remains nearly constant up to 24 GPa before decreasing at higher pressures. Assessment of the mode frequencies and their pressure dependence, together with previou...

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Publication status:
Published

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Publisher copy:
10.1007/s002690100152

Authors


Kleppe, AK More by this author
Jephcoat, AP More by this author
Olijnyk, H More by this author
Slesinger, AE More by this author
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Journal:
PHYSICS AND CHEMISTRY OF MINERALS
Volume:
28
Issue:
4
Pages:
232-241
Publication date:
2001-05-05
DOI:
EISSN:
1432-2021
ISSN:
0342-1791
URN:
uuid:3e9ccd47-3f02-4e8e-a7e9-6ed8f9f37287
Source identifiers:
82365
Local pid:
pubs:82365

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