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1. 中国科学技术大学地球和空间科学学院化学地球动力学研究实验室
2. 中国科学院高能物理研究所,合肥,230026
3. 中国地质科学院
4. ,北京,100037
纸质出版日期:2002-12-01
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[1]谢智,孙卫东,柴之芳,陈江峰,杜安道,李春生,毛雪瑛.辉钼矿的Os-Os法与Re-Os法定年及结果比较[J].核技术,2002(12):1013-1018.
XIE Zhi 1 SUN Weidong 1 CHAI Zhifang 2 CHEN Jiangfeng 1 DU Andao 3 LI Chunsheng 2 MAO Xueying 2 1. Comparison of Os-Os and Re-Os dating results of molybdenites[J]. Nuclear techniques, 2002, (12): 1013-1018.
用Re -Os法和Os-Os法测定了长江中下游地区的辉钼矿样品。这两个样品给出一致的Re -Os法和Os -Os法年龄。Os -Os法测定过程中分步蒸馏实验结果表明没有同位素分馏
证明Os -Os法可以避免Re -Os法定年中遇到的问题
简化实验过程
给出可靠的年龄结果
而且更具无需定量提取Os等独特的优越性
Two molybdenite samples from the Middle-Low Reaches of the Yangtze River were dated by both Os-Os and Re-Os methods. Os-Os and Re-Os dating give identical age results for the two samples. An experiment of step distillation of Os-Os method suggests that no isotopic fractionation is observed between fractions obtained by the experiment. The results prove that the Os-Os method can avoid the problems in the Re-Os method
simplify the experimental procedure
give creditable age data
and have unique advantage that no quantitative extracting of Os is required.
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