Infrared Studies on Shock-loading Jilin Meteorite

作     者：林文祝 刘高魁 

作者机构：Institute of Geochemistry Academia Sinica Guiyang 550002 PRC 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：1993年第36卷第5期

页      面：610-615页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

主　　题：light gun diaplectie glass absorption band Jilin meteorite. 

摘      要：The shock wave techniques which were first come into use investigated the mid-infrared spectra of shock-loading Jilia meteorite for shock recovery specimen. Through the structural variation of the shocked mineral in Jilin meteorite the chondritic shock metamorphism is studied. The results of the infrared spectra of shock recovery specimen show that the characteristic IR bands of polymorphs, phase transformation and high-pressure phase for both olivine and pyroxene almost were not found at the pressure over 12 GPa. The diaplectic glass occurs at the pressure between 53.0 and 77.5 GPa. The absorption band at 1740 cm^(-1) is assigned to the C = O stretching vibration as a sign of diaplectic glass occurring. The IR of recovery specimen has revealed that the vitreous materials in unshocked Jilin meteorites were primary remainders of meteoritic parent.