资源环境与工程
資源環境與工程
자원배경여공정
RESOURCES ENVIRONMENT & ENGINEERING
2015年
3期
248-251
,共4页
下地壳%岩石%流变
下地殼%巖石%流變
하지각%암석%류변
lower crust%rock%rheological
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。
大陸下地殼是地毬深部地殼生長和變形、殼—幔物質與能量交換及殼內物質分異的重要場所。對大陸下地殼結構、成分與性質的認識，是更好地探索地殼形成、縯化等地毬動力學過程的前提。總結前人根據地震反射、區域痳粒巖和痳粒巖包體等的研究，對大陸下地殼物質組成進行歸納；總結大陸下地殼巖石的流變性質，在此基礎上對大陸下地殼流動的幾種模式進行對比。
대륙하지각시지구심부지각생장화변형、각—만물질여능량교환급각내물질분이적중요장소。대대륙하지각결구、성분여성질적인식，시경호지탐색지각형성、연화등지구동역학과정적전제。총결전인근거지진반사、구역마립암화마립암포체등적연구，대대륙하지각물질조성진행귀납；총결대륙하지각암석적류변성질，재차기출상대대륙하지각류동적궤충모식진행대비。
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 pa-per concludes crustal components and rheological property of crustal rocks,thus providing a summary of and comparison among several models of crustal flow.
