日時 ： ２００９年１０月９日（金）※16：30～
場所 ： 愛媛大学総合研究棟Ⅰ 4F 共通会議室（理学部構内）
要 旨
Pilot disequilibrium experiments (10 GPa, 1450 , 6 h) performed to breakdown synthetic mantle transition zone garnet with a majoritic mineral chemistry (55% majorite in solid solution) formed new majoritic garnet (50% majorite in solid solution) and tschermakitic pyroxene suggesting the breakdown of the garnet structure precedes that of the garnet's majorite chemistry. By implication, preservation of natural majoritic garnet is controlled not by decompression rates than those factors that control mineral chemical diffusion, mainly temperature, cooling rates and water content.
問い合わせ先：土屋 卓久 TEL （089）927-8198
E-mail takut@sci.ehime-u.ac.jp
