U-Pb age determinations of uraninite by electron microprobe analyses of ore samples from two solution-collapse breccia pipe uranium deposits, Grand Canyon region, northwest Arizona, USA

This data release compiles the electron microprobe spot analyses of U, Th, and Pb concentrations in uraninite (U oxide) particles, and corresponding calculated age...本数据集汇编了晶质铀矿（uraninite，氧化铀矿物）颗粒中铀（U）、钍（Th）、铅（Pb）浓度的电子探针微区点分析数据，以及据此计算得到的对应年龄……