Sm-Nd ISOTOPIC AGE OF THE METAMORPHIC BASIC DYKES IN MIYUN, BEIJING AND ITS GEOLOGICAL SIGNIFICANCE
北京密云地区变质基性岩墙的Sm—Nd同位素年龄及其地质意义

Keywords: Sm-Nd isotopic age,Metamorphic basic dyke,Miyun,Beijing
钐,钕,同位素,年龄,岩脉,基性岩

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