摘要
通过对研究区南迦巴瓦岩群的大比例尺填图工作 ,根据南迦巴瓦岩群的原岩建造、变质程度的不同、变形样式的差异 ,将其解体为在区域上具有可填性 3套岩石组合———直白岩组、派乡岩组和多雄拉混合岩 ,三者之间均以构造面接触。
The Namjagbarwa Group Complex within the Eastern Himalayan syntaxis,Xizang may be sub- divided,on the basis of regional geological mapping in combination with rock types,metamorphic degrees and deformational patterns,into three mappable units: Zhibai and Paixiang Formation Complexes,Doxongla migmatites,all of which are bounded by the structural contacts and surrounded by the Indus-Yarlung Zangbo suture zone. The protolith ages for the Zhibai Formation Complex should be dated between 1312 Ma and 552 Ma.
出处
《沉积与特提斯地质》
CAS
CSCD
2004年第2期8-15,共8页
Sedimentary Geology and Tethyan Geology
基金
中国地质调查局 1 2 5万<墨脱县幅>区域地质调查项目
关键词
东喜马拉雅构造结
南迦巴瓦岩群
解体
西藏
eastern Himalayan syntaxis
Namjagbarwa Group Complex
subdivision
Xizang
