天然高压矿物研究的新进展及其在地幔矿物学中的意义  

Progress in Searching Natural High-Pressure Minerals and Its Significance in the Earth's Mantle Mineralogy

作　　者：陈鸣[1] 谢先德[1] 

机构地区：[1]中国科学院广州地球化学研究所,广州510640

出　　处：《高校地质学报》2000年第2期121-125,共5页Geological Journal of China Universities

基　　金：国家自然科学基金项目!(4982 5 10 6 )

摘　　要：对地表陨石坑岩石和陨石的冲击变质效应的研究 ,是以往发现天然高压矿物的主要途径。α PbO2 超斯石英、(Na ,K ,Ca)AlSi3 O8 锰钡矿以及磷灰石高压同质多像变体等是几个近期在陨石中发现的天然高压相 ,这些高压相很可能存在于地幔之中。天然高压矿物的发现对地幔矿物学研究和发展起了推动作用。The study of shock metamorphic effects on the rocks of terrestrial impact craters and on meteorites has been an approach in searching natural high pressure minerals. Recently, several high pressure phases including α PbO 2, post stishovite, (Na,K,Ca)AlSi 3O 8-hollandite and a high pressure polymorph of apatite, which could occur in the Earth's mantle, have been found in the meteorites. The findings of natural high pressure minerals have promoted the development in the mantle's mineralogy.

关 键 词：高压矿物 地幔矿物 陨石 冲击变质 矿物学 

分 类 号：P575[天文地球—矿物学] P57[天文地球—地质学]