... Middle Ordovician 中奥陶世 Middle Precambrian 中前寒武纪 Middle Silurian 中志留世 ...
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中国早前寒武纪麻粒岩 Early Precambrian Granulites of China
前寒武纪铁建造中的金矿床是世界上一种重要的金矿类型，深受国内外地质工作者的重视。
Gold deposit in Precambrian banded iron formation is an important type of gold ore, which has been paid more attention by many domestic or alien geologist.
浙西南前寒武纪变质岩中有七条较大规模的韧性剪切带，它们主要呈NE或NNE向展布，发育在八都群和龙泉群中。
There are seven ductile shear zones developed in Precambrian metamorphic rock in southwest Zhejiang. They mainly extend from NE or NNE to SW or SSW and are developed in Badu group and Longquan group.
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