Comparison of Os-Os and Re-Os dating results of molybdenites

XIE Zhi  1  SUN Weidong  1  CHAI Zhifang  2  CHEN Jiangfeng  1    DU Andao  3  LI Chunsheng  2  MAO Xueying  2  1

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Comparison of Os-Os and Re-Os dating results of molybdenites

更新时间：2021-03-12

- Comparison of Os-Os and Re-Os dating results of molybdenites
- NUCLEAR TECHNIQUES Issue 12, (2002)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
  
  中国科学院核分析技术开放实验室 (96B0 0 2 );高等学校博士学科点专项科研基金 (96 0 35 815 )资助
- DOI：
  CLC： P597
- Published：01 December 2002
- 稿件说明：
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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.
[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. DOI：

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. DOI：

摘要

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

Abstract

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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