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地质论评  2004 

安徽铜陵新桥铜金矿床黄铁矿Rb/Sr同位素年龄数据――燕山晚期成矿作用的证据

Keywords: 金矿床黄铁矿Rb-Sr等时线法成矿作用矿床地质同位素年龄

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Abstract:

本文采用亚样品取样和Rb/Sr同位素方法对安徽铜陵新桥铜-硫铁-金矿床层状矿体矿石矿物--黄铁矿直接进行Rb-Sr等时线法测定,获得了112.6±7.8Ma的Rb-Sr等时线年龄,它代表了主成矿期成矿作用的时代.结合已有地质资料认为燕山晚期成矿作用在新桥铜-硫铁-金矿床的形成中居重要作用.

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