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Water diffusion in a basaltic meltMeasurements of water diffusivity in a basaltic liquid are reported. The concentration-dependent total water diffusivities in the basaltic melt at 1300-1500 C are 30-50 times as large as those in rhyolitic melts and are greater than the total CO2 diffusivity in basaltic melts, contrary to previous expectations. These results suggest that diffusive fractionation would increase the ratio of water to CO2 in growing bubbles relative to equilibrium partitioning and decrease the ratio in interface melts near an advancing anhydrous phenocryst.
Document ID
19910053092
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Zhang, Youxue
(California Inst. of Tech. Pasadena, CA, United States)
Stolper, E. M.
(California Institute of Technology Pasadena, United States)
Date Acquired
August 15, 2013
Publication Date
May 23, 1991
Publication Information
Publication: Nature
Volume: 351
ISSN: 0028-0836
Subject Category
Geophysics
Accession Number
91A37715
Distribution Limits
Public
Copyright
Other

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