| 新疆尉犁县风屏北山片麻杂岩地质特征及原岩成因探讨 |
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| 引用本文： | 刘延军,时玉芹,王伯勋,郑鹤龄,姚建民.新疆尉犁县风屏北山片麻杂岩地质特征及原岩成因探讨[J].吉林地质,2009,28(1):18-22. |
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| 作者姓名： | 刘延军 时玉芹 王伯勋 郑鹤龄 姚建民 |
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| 作者单位： | 吉林省第三地质调查所,吉林,四平,136000 |
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| 摘 要： | 对风屏北山片麻杂岩进行了同位素年龄确定,采用SHR IMP放射性同位素测年,确定同位素定年结果为2 484±20 Ma。根据岩石化学、稀土、微量元素等特征,对片麻杂岩进行了分析研究,认为该片麻岩原岩为I型花岗岩,经区域变质作用形成。
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| 关 键 词： | 片麻杂岩 原岩恢复 I型花岗岩 原岩成因 |
Geological features of the northern Fengpingshan gneiss complex and protolith genesis of Weili County,Xinjiang |
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| LIU Yan-jun,SHI Yu-qin,WANG Bo-xun,ZHENG He-ling,YAO Jian-min.Geological features of the northern Fengpingshan gneiss complex and protolith genesis of Weili County,Xinjiang[J].Jilin Geology,2009,28(1):18-22. |
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| Authors: | LIU Yan-jun SHI Yu-qin WANG Bo-xun ZHENG He-ling YAO Jian-min |
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| Institution: | ( The Third Geologic Survey of Jilin Province, Siping 136000, Jilin, China) |
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| Abstract: | The isotopic age of the northern Fengpingshan gneiss complex was determined using SHRIMP radioactive isotope dating, the result shows that isotopic age is 2 484±20 Ma. The gneiss complex was analyzed on the basis of the petrochemistry, RE and microelement characteristics. It is considered that gneiss complex belongs toⅠ type granite through the regional metamorphism. |
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| Keywords: | gneiss complex protolith reconstruction Ⅰ type granite protolith genesis |
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