| 山西铝土矿Rb-Sr同位素定年 |
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| 关键词:bauxite deposit Rb-Sr isotope dating Late Carboniferous Shanxi |
| 基金项目:国土资源部“山西铝土矿矿床成因与矿床模式研究”(原地质矿产部治科定:9405)项目，地质矿产部“九五”科技攻关项目(95011020401)，国家自然科学基金(46973197)，南京大学成矿作用国家重点实验室基金，南京大学分析测试基金 |
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| Rb-Sr Isotope Dating of Bauxite Deposits in Shanxi Province |
| The authors determined Rb-Sr isotope ages and initial 87Sr/ 86Sr ratios of three bauxite whole rock and clay mineral samples from Wutai(RS01), Linxian(RS02) and Xiaoyi (RS03)in Shanxi Province. They are 316.9±1.2 Ma and 0.71054±14, 315.5±1.3 Ma and 0.71086±18, and 317.3±1.1 Ma and 0.71050±14, respectively. These ages indicate that the bauxite and the ore-hosting sedimentary sequence in Shanxi Province were deposited in the time interval between 315 Ma and 317 Ma, corresponding to the Late Carboniferous Epoch. |
| WANG Yin-xi,LI Hui-min,GU Lian-xing,WU Chang-zhi,CHAI Dong-hao,CHEN Ping,WANG Sui-sheng,ZHANG Jing-jun.2003.Rb-Sr Isotope Dating of Bauxite Deposits in Shanxi Province[J].Acta Geoscientica Sinica,24(6):589-592. |
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