| 小兴安岭东部清水岩体的锆石激光探针U-Pb年龄测定 |
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| 关键词:LA-ICPMS zircon U-Pb age A-type granite Qingshui pluton Northeast China |
| 基金项目:国家自然科学基金项目(编号:49872031、40272045)，中国地质调查局资助，西北大学大陆动力学教育部重点实验室专项基金 |
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| LA-ICPMS Zircon U-Pb Age of the Qingshui Pluton in the East Xiao Hinggan Mountains |
| Using laser ablation ICP-MS (LA-ICPMS) technique,the authors obtained a zircon U-Pb age of 222±5 Ma for the Qingshui pluton in the East Xiao Hinggan Mountains. Petrological and geochemical studies indicate that this pluton is peralkaline,belon-ging to A_2 or PA type of post-orogenic setting. It is concluded that the formation of this pluton resulted from the lithospheric extension after the amalgamation of the North China craton and the Siberian craton at the end of Permian. |
| SUN De-you,WU Fu-yuan,GAO Shan.2004.LA-ICPMS Zircon U-Pb Age of the Qingshui Pluton in the East Xiao Hinggan Mountains[J].Acta Geoscientica Sinica,25(2):213-218. |
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