Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2015 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : S1-P03
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S1: Igneous processes and fluids
Physical property changes during partial melting of synthesized lherzolite
*Kenta SueyoshiTakehiko Hiraga
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Abstract

To understand how partial melting changes the electrical conductivity and viscosity of ascending mantle (ex. beneath mid-ocean ridge), we measured both properties of synthesized lherzolite samples at high temperature under atmospheric pressure. At below solidus, the conductivity and viscosity of samples exhibited a linear distribution in its Arrhenius plot with almost same activation energy (~ 180 kJ/mol and ~ 700 kJ/mol for conductivity and viscosity, respectively). At above solidus, the conductivity and viscosity showed steeper change with temperature increase. The observed increment in conductivity and decrement of viscosity are considered to be related to the increment of melt fraction.

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© 2015 Japan Association of Mineralogical Sciences
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