| 滇西北白马雪山和鲁甸花岗岩基SHRIMP U-Pb年龄及其地质意义 |
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| 引用本文： | 简平,刘敦一,孙晓猛.滇西北白马雪山和鲁甸花岗岩基SHRIMP U-Pb年龄及其地质意义[J].地球学报,2003,24(4):337-342. |
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| 作者姓名： | 简平 刘敦一 孙晓猛 |
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| 作者单位： | 中国地质科学院地质研究所，北京100037;中国地质科学院地质研究所，北京100037;吉林大学，长春，130026 |
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| 基金项目： | 国家自然科学基金项目(49902005) |
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| 摘 要： | 应用SHRIMP方法对滇西北2个花岗质岩基——白马雪山和鲁甸花岗岩进行同位素地质年代学研究。研究表明,白马雪山花岗闪长岩的侵位年龄为239±6 Ma,鲁甸黑云母二长花岗岩为214±6 Ma。这一研究为解决金沙江地区的碰撞造山事件的时代问题提供了同位素地质年代学依据。
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| 关 键 词： | 花岗岩基 碰撞造山事件 SHRIMP年代学 滇西北 |
SHRIMP Dating of Baimaxueshan and Ludian Granitoid Batholiths, Northwestern Yunnan Province, and Its Geological Implications |
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| JIAN Ping,LIU Dun-yi and SUN Xiao-meng.SHRIMP Dating of Baimaxueshan and Ludian Granitoid Batholiths, Northwestern Yunnan Province, and Its Geological Implications[J].Acta Geoscientia Sinica,2003,24(4):337-342. |
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| Authors: | JIAN Ping LIU Dun-yi and SUN Xiao-meng |
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| Institution: | Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037;Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037;Jilin University, Changchun, 130026 |
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| Abstract: | SHRIMP U-Pb ages are reported for the Baimaxueshan and the Ludian granitoid batholiths in northwestern Yunnan Province. The Baimaxueshan granodiorite intruded at 239 ± 6 Ma, whereas the Ludian biotite monzonite granite, 214 ± 6 Ma. These data provide geochronological evidence for the collisional events of Jinshajiang area. |
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| Keywords: | granitoid batholiths collisional event SHRIMP northwestern Yunnan Province |
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