| 阿尔泰造山带西段同造山铁列克花岗岩体锆石U-Pb年龄及其构造意义 |
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| 关键词:arc granite La-ICPMS Central Asia Orogenic belt Eopaleozoic ozoic |
| 基金项目:本文由国家重大基础研究规划项目（编号：2001CB409802)、国际合作基金项目（编号：40210647)、国家自然科学基金项目（编号：40472101、49772105)、西北大学大陆动力学实验室资助。 |
| 作者 | 单位 | E-mail | | 童英 | 中国地质科学院地质研究所,北京,100037 | yingtong@pku.edu.cn | | 王涛 | 中国地质科学院地质研究所,北京,100037 | | | 洪大卫 | 中国地质科学院地质研究所,北京,100037 | | | 柳晓明 | 西北大学地质学系大陆动力学教育部重点实验室,陕西西安,710069 | | | 韩宝福 | 北京大学地球与空间科学学院,北京,100871 | |
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| Zircon U-Pb Age of Syn-orogenic Tielieke Pluton in the Western Part of Altay Orogenic Belt and Its Structural Lnplications |
| Being an important pluton in the western part of Altay orogen, Tielieke pluton shows arc granitoid characteristics. Its emplacement time, however, remains undetermined. This paper presents a zircon La-ICPMS 206Pb/238U age of 409±5 Ma (MSWD=10)，which is interpreted as its emplacement age. This provides an evidence for discrimination and epoch of syn-orogenic granitoid, and also serves as a new chronological restriction for the subduction-orogeny of Altay orogen in Eopaleozoic (Ordovician-Devonian)． |
| TONG Ying,WANG Tao,HONG Dawei,LIU Xiaoming,HAN Baofu.2005.Zircon U-Pb Age of Syn-orogenic Tielieke Pluton in the Western Part of Altay Orogenic Belt and Its Structural Lnplications[J].Acta Geoscientica Sinica,26(z1):74-77. |
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