| 新疆西准噶尔西南部加里东期成矿斑岩体的发现及意义 |
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| 引用本文： | 赵文平,张练练,刘松柏,温志刚.新疆西准噶尔西南部加里东期成矿斑岩体的发现及意义[J].地质科学,2013,48(3):806-814. |
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| 作者姓名： | 赵文平 张练练 刘松柏 温志刚 |
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| 作者单位： | 陕西省地矿局区域地质矿产研究院 陕西 咸阳 712000 |
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| 基金项目： | 中国地质调查局项目"新疆1:25万捷尔任斯克、托里县幅区调修测"，新疆自治区地质勘查基金项目"新疆托里县库普一带1:5万区域地质矿产调查" |
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| 摘 要： | 过去一般认为西准噶尔西南部的侵入岩均为海西中晚期,但近年在玛依勒及巴尔鲁克等构造带发现了一些早古生代侵入岩体,部分岩体显示有铜(金)矿化。本文对其中的占贝勒成矿斑岩体,利用LA-ICP-MS法进行锆石U-Pb同位素测年,结果获得425.3±2.6 Ma的年龄,揭示西准噶尔西南部地区存在有加里东期中酸性侵入岩,进而说明西准噶尔西南部地区存在加里东期斑岩型铜金成矿事件。该研究成果不仅对分析本地区地质构造演化具有重要意义,且对西准地区成矿规律的总结和进一步找矿预测具有重要意义。
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| 关 键 词： | 新疆西准噶尔 加里东期 成矿斑岩 锆石U-Pb年龄 |
| 收稿时间： | 2012-12-10 |
| 修稿时间： | 2012-12-10; |
Recognition of a Caledonian mineralized porphyry intrusion in southwestern west Jungga, Xinjiang and the significances |
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| Zhao Wenping
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Zhang Lianlian
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Liu Songbai
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Wen Zhigang.Recognition of a Caledonian mineralized porphyry intrusion in southwestern west Jungga, Xinjiang and the significances[J].Chinese Journal of Geology,2013,48(3):806-814. |
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| Authors: | Zhao Wenping Zhang Lianlian Liu Songbai Wen Zhigang |
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| Institution: | Institute of Regional Geology and Mineral Resources, Shanxi Bureau of Geology and Mineral Resources, Xianyang, Shaanxi 712000 |
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| Abstract: | Intrusions in southwestern west Junggar were considered to be Meso-and Neo Hercynian.Recent studies on the Mayila and Baruq tectonic belt,however,have recognized Early Paleozoic intrusions,some of which are copper and gold mineralized.LA-ICP-MS U-Pb dating of zircons from the Zanbaylor mineralized porphyry gives an age of 425.3±2.6 Ma,indicating that there are Caledonian intermediate to acid intrusions and Caledonian porphyry copper and gold mineralization in the southwestern region of west Junggar.The recognition not only contributes to the regional tectonic evolution analysis,but also provides effective implications for the summary of metallogenic regularity and further prospecting in west Junggar. |
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| Keywords: | West Junggar of Xinjiang Caledonian Mineralized porphyry Zircon U-Pb age |
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