Columbite-tantalite U-Pb dating of Yanshanian rare metal mineralization in western Sichuan
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表 1 九龙稀有金属矿脉中铌钽铁矿U-Th-Pb同位素LA-ICP-MS分析测试结果
Table 1. The U-Th-Pb isotopic compositions of columbite-tantalite from pegmatite in Jiulong, Sichuan, by LA-ICP-MS