内蒙古西北部的宝音图群由角闪岩相的变质地层组成。
The Baoyintu Group in the Wulatehouqi , northwestern Inner Mongolia consists of amphibolite-facies metamorphic rocks .
宝音图群为陆缘拉张解体阶段源自结晶基底的裂解古陆块。
Baoyintu Group is recognized as an ancient fragment from crystalline basement in stage of continental margin disjoined .
宝音图