R3: High-pressure science and deep Earth's material

[R3P-01] Determination of the noble gas partition coefficients between metal and silicate melts under high-pressure and high-temperature conditions

*Tomotaka Tanaka¹, Satoshi Kishi¹, Hirochika Sumino¹, Hideharu Kuwahara², Ryuichi Nomura³, HIroyuki Kagi⁴, Kenji Mibe⁵ (1. Univ of Tokyo. arts and sci., 2. Geodynamics Research Center, Ehime Univ., 3. Human and Environmental Studies., Kyoto Univ., 4. Grad. Sch. Sci., Univ. Tokyo., 5. Earthquake Research Institute, Univ. Tokyo)

Keywords:noble gas, partitioning coefficients, high pressure, high temperature

In order to investigate noble gas partitioning behavior between the core and mantle, noble gases were dissolved into metal-silicate melts under high temperature and pressure conditions, and then the samples were quenched, recovered, and analyzed for noble gas concentrations. Noble-gas doped silicate glass and iron were melted and equilibrated under high pressure and temperature using a multianvil apparatus. The noble gases in the silicate phase were extracted by an ultraviolet laser ablation apparatus and analyzed using a noble gas mass spectrometer.