| 辽西地区台子里花岗质片麻岩锆石U-Pb年龄及其地质意义 |
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| 引用本文： | 郑培玺,金巍,周燕,李建,郑长青. 辽西地区台子里花岗质片麻岩锆石U-Pb年龄及其地质意义[J]. 吉林大学学报(地球科学版), 2009, 39(3) |
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| 作者姓名： | 郑培玺 金巍 周燕 李建 郑长青 |
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| 作者单位： | 1. 吉林大学,地球科学学院,长春,130061
2. 吉林大学,测试科学实验中心,长春,130026 |
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| 基金项目： | 国家油气专项目，中石化海相前瞻性项目 |
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| 摘 要： | 辽西地区台子里发育一套花岗质片麻岩和表壳岩捕虏体的岩石组合,原划定为建平群大营子组,近年的研究将建平群大营子组解体为花岗质深成侵入体和层状岩系.台子里花岗质片麻岩与辽西建平大营子地区叶柏寿片麻岩、曹家烧锅片麻岩具有相似特征.通过对台子里花岗质片麻岩的锆石形态分析和LA-ICP-MS准确定年,确定2 522 Ma的岩浆侵位年龄,代表了大营子组底部花岗质片麻岩的侵位时代为太古宙晚期,是辽西地区太古宙重要的岩浆事件,并为本地区新太古代晚期重要陆壳增生事件提供了重要的年代学信息.
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| 关 键 词： | 华北克拉通 锆石U-Pb年龄 花岗质片麻岩 建平群大营子组 辽西地区 |
Zircon U-Pb Age and Geological Significance of the Taizili Granitic Gneiss from Western Liaoning Province |
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| ZHENG Pei-xi,JIN Wei,ZHOU Yan,LI Jian,ZHENG Chang-qing. Zircon U-Pb Age and Geological Significance of the Taizili Granitic Gneiss from Western Liaoning Province[J]. Journal of Jilin Unviersity:Earth Science Edition, 2009, 39(3) |
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| Authors: | ZHENG Pei-xi JIN Wei ZHOU Yan LI Jian ZHENG Chang-qing |
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| Affiliation: | ZHENG Pei-xi1,JIN Wei1,ZHOU Yan2,LI Jian1,ZHENG Chang-qing11.College of Earth Sciences,Jilin University,Changchun 130061,China2.Center of Analysis , Testing,Changchun 130026,China |
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| Abstract: | A suit of rock association of granitic gneiss and supracrustal xenoliths,described as the Dayingzi Formation,Jianping Group previously,is widely distributed in the Taizili area in western Liaoning Province.During the research of recent year,the Dayingzi Formation,Jianping Group was disintegrated into granitic plutonic gneiss and layered rock series.This granitic gneiss has similar features as those in the Yebaishou and the Caojiashaoguo gneiss in Dayingzi area.The granitic gneiss could represent the importa... |
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| Keywords: | North China craton zircon U-Pb age granitic gneiss Jianping Group Dayingzi Formation western Liaoning Province |
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