中文摘要:白云鄂博铁稀土矿床的形成年龄一直是个有争论的问题，采自该矿床东采场的辉钼矿样，通过镜下对矿物结构构造的研究，认为辉钼矿是矿区晚期矿脉形成阶段的矿物，它的铼-锇同位素年龄为(439±8)×l06 a。此结果从另一侧面说明该矿床在加里东期有一期成矿作用。
中文关键词:Re-Os法 辉钼矿 187Re/187Os 白云鄂博
Abstract:The Bayan Obo deposit is one of the famous REE ore deposits in the world, and its formation age has long been a topic of controversy. Iron and REE orebodies occur in the dolomite bed of 8th lithologic member of Bayao Obo Group. The molybdenite sample from the eastern orebody is regarded as a product associated with late mineralization, and its Re-Os isotopic age is (439±8)×l06 a. This result proves from another aspect that there existed an ore-forming process in Caledonian period.
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引用文本：
刘兰笙，高翎，杜安道，孙亚莉.1996.白云鄂博稀土矿床中辉钼矿的铼-锇同位素年龄[J].矿床地质,15(2):188~191.1996.The Re-Os isotopic age of molybdenite from Bayan Obo REE ore deposit[J].Mineral Deposits15(2):188~191
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