| 阿尔金山东端花岗片麻岩中3.6Ga锆石的地质意义 |
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| 引用本文： | 李惠民,陆松年,郑健康,于海峰,赵风清,李怀坤,左义成.阿尔金山东端花岗片麻岩中3.6Ga锆石的地质意义[J].矿物岩石地球化学通报,2001,20(4):259-262. |
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| 作者姓名： | 李惠民 陆松年 郑健康 于海峰 赵风清 李怀坤 左义成 |
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| 作者单位： | 1. 中国地质调查局天津地质矿产研究所,天津,300170
2. 青海地质勘查局,青海,西宁,810001 |
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| 基金项目： | 国土资源部项目，中国地质调查局“九五”项目 ( 95 0 2 0 0 8和 1999130 0 0 130 31)研究成果 |
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| 摘 要： | 本文报道首次用单颗粒锆石U Pb同位素测年技术在我国西北阿尔金山东端古老花岗片麻岩中发现36 0 5± 43Ma的锆石。这是塔里木地块存在始太古代基底的重要证据 ,对研究该地区的地壳演化及其与我国东部和全球其他古老地块的对比研究具有重要的意义。
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| 关 键 词： | 阿尔金山 花岗片麻岩 3.6Ga 锆石 |
| 文章编号： | 1007-2802(2001)04-0259-04 |
| 修稿时间： | 2001年6月26日 |
Dating of 3.6 Ga Zircons in Granite-Gneiss from the Eastern Altyn Mountains and Its Geological Significance |
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| LI Hui-min ,LU Song-nian ,ZHENG Jian-kang ,YU Hai-feng ZHAO Feng-qing ,LI Huai-kun ,ZUO Yi-cheng.Dating of 3.6 Ga Zircons in Granite-Gneiss from the Eastern Altyn Mountains and Its Geological Significance[J].Bulletin of Mineralogy Petrology and Geochemistry,2001,20(4):259-262. |
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| Authors: | LI Hui-min LU Song-nian ZHENG Jian-kang YU Hai-feng ZHAO Feng-qing LI Huai-kun ZUO Yi-cheng |
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| Institution: | LI Hui-min 1,LU Song-nian 1,ZHENG Jian-kang 2,YU Hai-feng 1 ZHAO Feng-qing 1,LI Huai-kun 1,ZUO Yi-cheng 1 |
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| Abstract: | zircons in granite-gneiss from the Eastern Altyn Mountains were dated by single grain zircon U-Pb dating method. The reliable zircon age of 3605 +/-43 Ma is the first convincing evidence for existence of an Early Archean basement in Tarim Block and has important significance for study of crustal and tectonic evolution in this area and comparative study with those in the Eastern China and the other places in the world. |
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| Keywords: | Altyn Mountains granite-gneiss 3 6 Ga zircon |
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