| 云开前加里东花岗质岩石Sm-Nd、Pb/Pb同位素定年及其意义 |
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| 关键词:Yunkai area Pre-Caledonian granitic rock Sm-Nd and Pb/Pb isotopic dating |
| 基金项目:国家自然科学基金(青年)项目(编号49502036)，地矿部“九五”重点科技攻关项目(编号95-02-00) |
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| 摘要: |
| Sm-Nd and Pb/Pb Isotopic Dating of Pre-Caledonian Granitic Rocks in Yunkai Area and its Significance |
| The whole rock banded-augen granitic rock samples form Yankai uplifted area are dated Sm_Nd and Pb/Pb isotopically 1414±68Ma and 1388±90Ma respectively. These data indicate that the orogeny took place not only in Caledonian but also in Late Mesoproterozoic, which secms more important and is correlatable with global Grenville orogeny. |
| PENG Song-bai,ZHAN Ming-guo,ZHANG Ye-ming,QIU Rui-zhao,CHEN Fu-wen.2000.Sm-Nd and Pb/Pb Isotopic Dating of Pre-Caledonian Granitic Rocks in Yunkai Area and its Significance[J].Acta Geoscientica Sinica,21(1):52-57. |
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