| 白云鄂博稀土矿床中辉钼矿的铼-锇同位素年龄 |
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| 引用本文： | 刘兰笙,高翎,杜安道,孙亚莉.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,1996,15(2):188-191. |
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| 作者姓名： | 刘兰笙 高翎 杜安道 孙亚莉 |
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| 作者单位： | 中国地质科学院地质研究所 |
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| 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）×１０＾６ａ。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。
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| 关 键 词： | 辉钼矿 铼 锇 稀土矿床 同位素年龄 |
The Re-Os isotopic age of molybdenite from Bayan Obo REE ore deposit |
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| 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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| Keywords: | Re-Os method molybdenite 187Re/187Os Bayan Obo |
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