The origin of the nodular limestone of Daye Formation of Lower Triassic in the Middle Yangtze region is studied on the basis of their petrologic characterishcs,chemical and isotopic compositions.
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本文从基本特征出发,结合岩石学特征,尤其是化学成分及同位素组成等特征,对中扬子地区下三叠统大冶组瘤状灰岩的成因进行了探讨。
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