黄铜矿中液态包裹体Rb-Sr同位素测定方法研究  

STUDIES ON DETERMINATION OF Rb-Sr ISOTOPE OF LIQUID INCLUSIONS IN CHALCOPYRITE

作　　者：王林森[1] 张利[1] 

机构地区：[1]中国地质大学地球科学学院,湖北武汉430074

出　　处：《地质科技情报》2002年第4期101-104,共4页Geological Science and Technology Information

摘　　要：选取了碧口群铜矿床中筏子坝、阳坝和大茅坪三个矿区黄铜矿矿脉中的黄铜矿单矿物样品,通过大量的条件实验及方法研究,用溶解法获取了黄铜矿中的液态包裹体中流体并得出了与实际地质背景一致的Rb-Sr等时线年龄,建立了黄铜矿中液态包裹体Rb-Sr同位素定年的分析方法。A method is developed for determination of RbSr isotopic dating on liquid inclusions in chalcopyrite.The optimum conditions including chemical separation,best possible spike ratio and mass instrument operation are selected in detail.The proposed method has been applied to the analysis of Rb, Sr isotope in opaque minerals,and has produced good results.

关 键 词：黄铜矿 液态包裹体 铷同位素 锶同位素 RB-SR等时线年龄 

分 类 号：P578.25[天文地球—矿物学] P597[天文地球—地质学]