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对南大别超高压变质杂岩区潜山片麻岩进行了锆石U-Pb年龄测定,根据8组锆石的形态、Th,U特征和它们在不一致线上的分布情况,指出它们应该是一种在内部以岩浆成因组分为主、在边部以变质成因组分为主的变质增生混合锆石.所得交点年龄表明,该片麻岩同样经历了超高压变质作用.锆石的形态和成因无直接对应关系.
According to zircon U-Pb dating of buried-gneiss in the South Dabie UHP metamorphic complex, according to the characteristics of 8 groups of zircons, Th, U and their distribution in the inconsistent line, it is pointed out that they should be A metamorphic and accretionary mixed zircon mainly composed of magmatic components in the interior and metamorphic components in the margins. The resulting intersection age indicates that the gneiss has also undergone UHP metamorphism. There is no direct correspondence between the morphology and origin of zircon.