Radionuclide concentrations, ratios, and derived ages of massive sulfides fro...
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Massive sulfide samples from the Bent Hill area were analyzed for 230Th/234U and 231Pa/235U disequilibria. Apparent ages calculated from these ratios are between 8.2 and >300...
本研究对采自本特希尔（Bent Hill）地区的块状硫化物样品开展了230Th/234U与231Pa/235U同位素不平衡体系的分析测试。基于上述同位素比值计算得到的视年龄介于8.2至大于300的区间内……
