首页 | 本学科首页   官方微博 | 高级检索  
     检索      

Petrological Model for the Structure of Continental Crust in the Eastern Hebei Province
摘    要:The precambrian metamorphic complex in the eastern Hebei Province may be considered as an exposed part of the transect of the continental crust.Based on the estimated depth of the metamorphic complex deduced from metamorphic facies and subfacies,geothermomctry and geobarometry in combination with geophysical data,previous and our measurements of wave velocities of rocks under high pressure,a petrological model for the crustal structure in eastern Hebei Province is suggested(Fig.3).The lower crust consists of granulite facies,with the intermediate amphiboie granulite subfacies and the mafic pyroxene granulite subfacies respectively in the upper and lower parts,and with the leuslike serpentinized peridotite and charnockite interbedded in the bottom.The middle crust consists mainly of the intermediate-acidic high temperature amphibolite facies gneiss and schist,with the low temperature amphibolite facies gneiss and schist on the top.The tonalite and granodiorite intrusions with high-temperature intertotial

本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号