Hydrous partial melting of the upper mantle as judged from mineral/melt partition coefficients
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Hydrous partial melting of the upper mantle as judged from
mineral/melt partition coefficients
Marc M. Hirschmann
Cyril Aubaud
Tony Withers
University of Minnesota
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Hirth and Kohlstedt, 1996
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Aubaud et al., 2004
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Bercovici and Karato, 2003
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Aubaud et al., 2004
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Experimental Measurements of H2O PartitioningBetween Melts and Nominally Anhydrous Minerals
Koga et al. 2003; Aubaud et al., 2004, in prep; Hauri et al., 2006)
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=Test of Simple ModelIn System Olivine-H2O
1 GPa
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€
T =1
1
Tperidotitefusion
−R
ΔHperidotitefusion
ln 1 -XOH -melt
( )
⎛
⎝ ⎜ ⎜
⎞
⎠ ⎟ ⎟
Aubaud et al., GRL, 2004
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€
T =1
1
Tperidotitefusion
−R
ΔHperidotitefusion
ln 1 -XOH -melt
( )
⎛
⎝ ⎜ ⎜
⎞
⎠ ⎟ ⎟
Aubaud et al., GRL, 2004
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Al3+ + H+ <-> Si4+
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Effect of H2Oon the liquidus of naturalbasalts
Medard and Grove(submitted)
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=Test of Simple ModelIn System Olivine-H2O
1 GPa
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