| 西藏泽当蛇绿岩的Sm-Nd等时线年龄及其意义 |
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| 关键词:ophiolite Sm-Nd isochron age Zedang Tibet |
| 基金项目:中国科学院知识创新工程项目(编号:KZCXZ-SW-117); 国家自然科学基金项目(编号:40072022) |
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| Sm-Nd Isochron Age of Zedang Ophiolite in Tibet and Its Significance |
| Zedang ophiolite is located in the eastern segment of Yalung Zangbo ophiolite belt, Tibet. The whole rock Sm-Nd isochron age of basalts in Zedang ophiolite is 175±20 Ma, indicating that the ophiolite was formed in the Middle Jurassic. The initial ε_ Nd (t) value of basalt is +7.2, suggesting that the Zedang ophiolite was derived from a strongly depleted mantle and did not suffer from crustal contamination. |
| WEI Dong-liang,XIA Bin,ZHOU Guo-qing,WANG Ran,ZHONG Li-feng,WAN Shao-kai.2006.Sm-Nd Isochron Age of Zedang Ophiolite in Tibet and Its Significance[J].Acta Geoscientica Sinica,27(1):31-34. |
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