大陆下地壳活动及岩石学特征研究进展  

Research Progress of Activity of Continental Lower Crust and Petrologic Characteristics

作　　者：金世超[1] 胡刚 刘莉茗[3] 

机构地区：[1]中国地质调查局武汉地质调查中心,湖北武汉430205 [2]江西省地矿资源勘查开发中心,江西南昌330030 [3]湖北省国土资源厅,湖北武汉430071

出　　处：《资源环境与工程》2015年第3期248-251,共4页Resources Environment & Engineering

基　　金：中国地质调查局地质大调查项目(12120114047001)资助

摘　　要：大陆下地壳是地球深部地壳生长和变形、壳—幔物质与能量交换及壳内物质分异的重要场所。对大陆下地壳结构、成分与性质的认识,是更好地探索地壳形成、演化等地球动力学过程的前提。总结前人根据地震反射、区域麻粒岩和麻粒岩包体等的研究,对大陆下地壳物质组成进行归纳;总结大陆下地壳岩石的流变性质,在此基础上对大陆下地壳流动的几种模式进行对比。Lower continental crust is an important place where the deep-seated earth＇s crust growth and deformation, the crust-mantle matter and energy exchanging and shell material differentiation occur. A deeper probe into the structure, component and properties of the crust provides premise for the better exploration of crust formation, evolution and geody- namic processes. Based on the former researches on seismic reflection, regional granulite and granulite xenoliths, this paper concludes crustal components and rheological property of crustal rocks, thus providing a summary of and comparison among several models of crustal flow.

关 键 词：下地壳 岩石 流变 

分 类 号：P542[天文地球—构造地质学] P58[天文地球—地质学]