The Hengshan high-grade metamorphic terrain is one of the typical areas for the study of Early Precambrian metamorphic rocks in China.
恒山高级变质岩区是中国早前寒武纪变质岩研究的经典地区之一。
The recent geologic data show that it is the Archeozoic high-grade metamorphic terrain formed by the supracrustal rock-TTG rock series, that is different with the southern Longgang landmass.
新近调查资料表明 ，它是由表壳岩 -TTG岩系组成的一太古宙高级变质地体 ，并有别于南侧之龙岗陆块。
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