A laboratory study of melt migration

M. J. Daines, David L Kohlstedt

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Melt migration experiments have been carried out to investigate the dependence of permeability on melt fraction and on orthopyroxene content for partly molten aggregates of olivine plus basalt and olivine-orthopyroxene plus basalt. For the experiments in which melt was initially present in both the source and the sink, the melt migration profiles could be fit equally well with a permeability proportional to the melt fraction to the first, second or third power. For the experiments in which the sink initially was melt-free, a best fit to the melt migration profiles could be obtained with a permeability that is linearly proportional to melt fraction. The melt migration profiles for samples in which the sink disc contained olivine plus 20 vol% orthopyroxene were esssentialy identical to those for samples in which the sink contained only olivine. -from Authors

Original languageEnglish (US)
Pages (from-to)43-52
Number of pages10
JournalPhilosophical Transactions - Royal Society of London, A
Issue number1663
StatePublished - Jan 1 1992


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