| 广西桂林地区东部栗木花岗岩体SHRIMP锆石U-Pb年龄 |
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| 引用本文： | 康志强,冯佐海,杨锋,廖家飞,潘会彬.广西桂林地区东部栗木花岗岩体SHRIMP锆石U-Pb年龄[J].地质通报,2012,31(8):1306-1312. |
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| 作者姓名： | 康志强 冯佐海 杨锋 廖家飞 潘会彬 |
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| 作者单位： | 1. 桂林理工大学地球科学学院,广西桂林541004;桂林理工大学广西隐伏金属矿产勘查重点实验室,广西桂林541004
2. 桂林理工大学地球科学学院,广西桂林,541004 |
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| 基金项目： | 广西自然科学基金重点项目，广西教育厅项目 |
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| 摘 要： | 栗木矿区位于南岭钨锡多金属成矿带的中段,成矿作用与花岗岩密切相关。通过对栗木金竹源与三个黄牛地区云英岩化花岗岩的年代学研究,获得2个SHRIMP锆石U-Pb年龄分别为218.3Ma±2.4Ma和214.0Ma±5.0Ma,代表了栗木花岗岩体的形成年龄。结合前人的研究数据,栗木矿区成岩、成矿作用年龄近乎一致,应为晚三叠世同一期次岩浆作用的产物。
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| 关 键 词： | 锡铌钽矿床 SHRIMP锆石U-Pb年龄 金竹源 三个黄牛 栗木花岗岩 广西 |
SHRIMP zircon U-Pb age of the Limu granite in eastern Guilin, Guangxi |
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| KANG Zhi-qiang
,
FENG Zuo-hai
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YANG Feng
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LIAO Jia-fei
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PAN Hui-bin.SHRIMP zircon U-Pb age of the Limu granite in eastern Guilin, Guangxi[J].Geologcal Bulletin OF China,2012,31(8):1306-1312. |
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| Authors: | KANG Zhi-qiang FENG Zuo-hai YANG Feng LIAO Jia-fei PAN Hui-bin |
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| Institution: | 1.School of Earth Science,Guilin University of Technology,Guilin 541004,Guangxi,China; 2.Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration,Guilin University of Technology,Guilin 541004,Guangxi,China |
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| Abstract: | The Limu Sn-Nb-Ta ore deposit located in north Guangxi is an important component part of the Nanling W-Sn polymetallic belt. In this research, zircon SHRIMP U-Pb dating was conducted in Jinzhuyuan and Sangehuangniu area, and the resultant ages are 218.3±2.4Ma and 214.0±5.0Ma, respectively, which represent the formation age of the Limu granite. Combined with the previous research data, it is suggested that the formation of Limu granite and the mineralization occurred almost simultaneously, and that they should be the same magmatic products in Late Triassic. |
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| Keywords: | Sn-Nb-Ta ore deposit SHRIMP zircon U-Pb age Jinzhuyuan Sangehuangniu Limu granite Guangxi |
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