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精确厘定成矿年代对认识矿床特征及成因、探讨矿床形成规律和构造背景、总结区域成矿演化规律等都具有十分重要的科学意义。本文在前人研究的基础上,总结了燕辽钼矿带已中13个钼矿床的Re-Os同位素年代数据,对采用不同衰变系数的年龄进行换算,根据数据质量对已有年龄数据进行筛选,进一步限定了各矿床的成矿时代,并结合燕辽钼矿带大规模成矿作用,明确了这些钼矿床所属的成矿期。
Accurately determining the age of mineralization is of great scientific significance for understanding the characteristics and genesis of the deposit, exploring the formation rules and tectonic setting of the deposit, and summarizing the evolution rules of the metallogenic processes in the area. Based on the previous studies, this paper summarizes the Re-Os dating data of 13 molybdenum deposits in the Yanliao molybdenum belt, scans the ages with different decay coefficients and scans the existing data according to the data quality Further defining the mineralization age of each deposit and combining with the large-scale metallogenesis of the Yanliao molybdenum ore belt, the metallogenic stages of these molybdenum deposits are clarified.