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西秦岭降扎地区寒武、志留系中的金、铀矿床，是我国相当重要的碳硅泥岩型矿床。根据金矿床中岩石和矿石异常铅模式年龄、氩－氩同位素年龄和钾－氩同位素年龄等，获得了一批有益的年代学信息。金矿床的各种同位素年龄数据主要有２组：（１）２４２－１８６Ｍａ；（２）１３７－４７Ｍａ。结合区域地质发展史、成矿热液脉与岩脉的穿切关系以及矿床产出的其它宏观特征等，确定金矿床的成矿时代为１３７－４７Ｍａ，与区域铀矿床形成的主要时代（１１７－５５Ｍａ）相比，二者成矿时间大体相同。
The Cambrian and Silurian gold and uranium deposits in the Lower Qinling area of western Qinling are important carbon-siltstone type deposits in China. Based on the age of anomalous lead and lead ore, the age of argon-argon isotopes and the age of potassium-argon isotopes in the gold deposits, a number of useful geochronological information were obtained. The gold isotope age data of the two major groups: (1) 242-186Ma; (2) 137-47Ma. Based on the regional geological history, the relationship between the mineralization hydrothermal veins and the dikes and other macroscopic features of ore deposits, the metallogenic epoch of the gold deposits is 137-47Ma, which is consistent with the main age of the regional uranium deposits (117 -55Ma) compared to the two ore-forming time roughly the same.