| 广西栗木泡水岭印支期岩体LA-ICP-MS锆石U-Pb年龄及其地质意义 |
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| 引用本文： | 娄 峰,伍 静,陈国辉. 广西栗木泡水岭印支期岩体LA-ICP-MS锆石U-Pb年龄及其地质意义[J]. 地质通报, 2014, 33(7): 960-965 |
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| 作者姓名： | 娄 峰 伍 静 陈国辉 |
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| 作者单位： | 1. 中山大学地球科学系，广东 广州 510275；2. 广东省地质过程与矿产资源探查重点实验室，广东 广州 510275；3. 中国科学院广州地球化学研究所，广东 广州510640 |
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| 基金项目： | 国家自然科学基金项目(批准号:41372223) |
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| 摘 要： | 广西栗木泡水岭花岗岩LA-ICP-MS锆石U-Pb年龄显示,泡水岭花岗岩体可能存在3期岩浆活动:210Ma、222Ma和239Ma,佐证了栗木岩体是印支期岩浆活动的产物。结合最新的研究,栗木花岗岩体形成于印支期,岩浆活动集中在210Ma±4Ma~222Ma±5Ma之间,并且在239.8Ma±4.3Ma可能存在印支早期的岩浆活动。
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| 关 键 词： | 栗木矿床 泡水岭岩体 LA-ICP-MS锆石U-Pb年龄 印支期 广西 |
LA-ICP-MS zircon U-Pb dating of Indosinian rock mass in Paoshuiling of Limu, Guangxi and its geological implications |
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| LOU Feng,WU Jing,CHEN Guo-hui. LA-ICP-MS zircon U-Pb dating of Indosinian rock mass in Paoshuiling of Limu, Guangxi and its geological implications[J]. Geologcal Bulletin of China, 2014, 33(7): 960-965 |
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| Authors: | LOU Feng WU Jing CHEN Guo-hui |
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| Affiliation: | 1. Department of Earth Sciences, Sun Yat Sen University, Guangzhou 510275, Guangdong, China;2. Guandong Key Lab of Geological Process and Mineral Resource Investigation, Guangzhou 510275, Guangdong, China;3. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China |
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| Abstract: | LA-ICP-MS zircon U-Pb ages of granite in Paoshuiling of Limu indicate that the Paoshuiling granite was produced by Indosinian magmatism and probably formed in three stages of magmatic activities, which occurred at 210Ma, 222Ma and 239Ma respectively. Combined with the latest research, the authors hold that Limu granite was formed in Indosinian period and the magmatic activities were concentrated between 210Ma±4Ma and 222Ma±5Ma. In addition, the age of 239.8Ma±4.3Ma might represent the early Indosinian magmatic activity. |
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| Keywords: | Limu orefield Paoshuiling granite LA-ICP-MS zircon U-Pb ages Indosinian Guangxi Province |
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