R5：地球外物質

[R5-10] 再現I-type溶融微小隕石の酸化的熱水変質実験とXAFS法による解析

*Shao Huimin²、磯部 博志¹、北原 銀河²、吉朝 朗¹ (1. 熊本大・院先端科学、2. 熊本大・院自然科学)

キーワード：Martian hematite、oxidative hydrothermal alteration、XAFS、cosmic spherules

Oxidative hydrothermal experiments on reproduced I-type cosmic spherules are carried out to be applied on the formation mechanism of Martian hematite spherules. XAFS analysis on run products revealed that oxidation of I-type cosmic spherules could progress in neutral conditions rather than acidic conditions.