高温・高圧実験と分析透過電子顕微鏡による下部マントル物質の解析
1998 年 27 巻 1 号 p. 69-80
詳細
1998 年 27 巻 1 号 p. 69-80
High pressure and high temperature studies on materials under the Earth's lower mantle conditions by the laserheated diamond anvil cell (DAC) experiments combined with analytical transmission electron microscopy (ATEM) are reviewed. Importance of the careful preparation of the foils and the proper procedures in the chemical analyses of the DAC samples by ATEM is described. Also, the powerfulness of the ATEM for the studies of the phase transformations and the phase relations of mantle minerals is stressed. Our recent results, based on this approach, on the phase transitions in perovskite and the post-garnet phases under the lower mantle conditions are presented together with results of other groups.
