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The low-pressure stability of phase A, Mg7Si2O8(OH)(6)

Abstract:

Phase A, Mg7Si2O8(OH)6, is a dense hydrous magnesium silicate whose importance as a host of H2O in the Earth's mantle is a subject of debate. We have investigated the low-pressure stability of phase A in experiments on the reaction phase A = brucite + forsterite. Experiments were conducted in piston-cylinder and multi-anvil apparatus, using mixtures of synthetic phase A, brucite and forsterite. The reaction was bracketed between 2.60 and 2.75 GPa at 500° C, between 3.25 and 3.48 G Pa at 600° ...

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Publication status:
Published

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Publisher copy:
10.1007/s004100050176

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY More from this journal
Volume:
124
Issue:
1
Pages:
90-97
Publication date:
1996-06-01
DOI:
EISSN:
1432-0967
ISSN:
0010-7999
Language:
English
Pubs id:
pubs:163820
UUID:
uuid:cfb63a30-7c29-4f08-8097-2d93a960767b
Local pid:
pubs:163820
Source identifiers:
163820
Deposit date:
2012-12-19

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