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The Effect of H2O on the 410-Kilometer Seismic Discontinuity.

Abstract:

The 410-kilometer seismic discontinuity is generally considered to be caused by a phase transformation of the main constituent of the upper mantle, olivine, alpha-(Mg,Fe)(2)SiO(4), to beta-(Mg,Fe)(2)SiO(4). Recent data show that H(2)O dissolves in olivine and other nominally anhydrous mantle minerals and that the partitioning of H(2)O between olivine and beta-(Mg,Fe)(2)SiO(4) is about 1:10. Such behavior strongly affects the region over which the alpha to beta phase transformation occurs and ...

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Publication status:
Published

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Publisher copy:
10.1126/science.268.5207.74

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
Journal:
Science (New York, N.Y.)
Volume:
268
Issue:
5207
Pages:
74-76
Publication date:
1995-04-05
DOI:
EISSN:
1095-9203
ISSN:
0036-8075
URN:
uuid:df6086db-ca11-49f0-815c-aa44727ff917
Source identifiers:
163808
Local pid:
pubs:163808
Language:
English

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