| 云南个旧锡矿的成矿时代 |
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| 引用本文： | 秦德先,黎应书,谈树成,陈爱兵,薛传东,范柱国,党玉涛,童祥,武俊德,李玉新,王海云.云南个旧锡矿的成矿时代[J].地质科学,2006,41(1):122-132. |
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| 作者姓名： | 秦德先 黎应书 谈树成 陈爱兵 薛传东 范柱国 党玉涛 童祥 武俊德 李玉新 王海云 |
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| 作者单位： | 1. 昆明理工大学矿产地质研究所 昆明 650093;2. 云南锡业公司 云南 个旧 661400 |
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| 基金项目： | 云南省省院省校科技合作项目，云南锡业集团有限责任公司资助项目，科技部专项基金，云南省自然科学基金 |
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| 摘 要： | 云南个旧锡矿经历了印支期海底基性火山——沉积成矿、海底喷流——沉积成矿和燕山晚期的花岗岩叠加改造成矿的作用。用Ar-Ar、K-Ar和Pb-Pb法分析了3个成矿系列的成矿年龄,结果表明,成矿系列Ⅰ的Ar-Ar法坪年龄和等时线年龄为95.93±5.41～123.91±15.41Ma,K-Ar法表观年龄为112.50±2.25Ma,普通铅法年龄为210～240Ma;成矿系列Ⅱ的Ar-Ar法坪年龄和等时线年龄为191.81±2.26～205.11±4.38Ma,K-Ar法表观年龄为186.01±3.72Ma,普通铅法年龄为200～230Ma;成矿系列Ⅲ的Ar-Ar法坪年龄和等时线年龄为83.23±2.07～85.22±2.38Ma,K-Ar法表观年龄为43.49±0.87Ma,普通铅法年龄为83～116Ma。
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| 关 键 词： | 成矿时代 多期成矿 个旧锡矿 云南 |
| 文章编号： | 0563-5020（2006）01-0122-11 |
| 收稿时间： | 2004-10-27 |
| 修稿时间： | 2004-12-14 |
METALLOGENIC AGES OF GEJIU TIN ORE DEPOSIT IN YUNNAN PROVINCE |
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| Qin Dexian,Li Yingshu,Tan Shucheng,Chen Aibing,Xue Chuandong,Fan Zhuguo,Dang Yutao,Tong Xiang,Wu Junde,Li Yuxin,Wang Haiyun.METALLOGENIC AGES OF GEJIU TIN ORE DEPOSIT IN YUNNAN PROVINCE[J].Chinese Journal of Geology,2006,41(1):122-132. |
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| Authors: | Qin Dexian Li Yingshu Tan Shucheng Chen Aibing Xue Chuandong Fan Zhuguo Dang Yutao Tong Xiang Wu Junde Li Yuxin Wang Haiyun |
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| Institution: | 1. Institute of Geology and Mineral Deposits, Kunming University of Science and Technology, Kunming 650093;2. Yunnan Tin Industry Co. Ltd., Gejiu, Yunnan 661400 |
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| Abstract: | The formation of the Gejiu tin ore deposits experienced three generation mineralizations, which were, in an ascending order, the seabed basic volcano-sedimentary mineralization in the Indosinian epoch (metallogenetic series Ⅰ), the seabed exhalative hydrothermal sedimentary mineralization in the Indosinian epoch (metallogenetic series Ⅱ) and the superimposed granitism-reformed mineralization in the Yanshanian epoch (metallogenetic series Ⅲ). The paper analyzed metallogenetic ages of the above-mentioned metallogenetic series by means of Ar-Ar, K-Ar and Pb-Pb methods. The dating results showed that the ages of metallogenetic seriesⅠby Ar-Ar, K-Ar and Pb-Pb methods yielded from 95.93±5.41 to 123.91±15.41 Ma, 112.50±2.25 Ma and from 210 to 240 Ma respectively. The ages of metallogenetic seriesⅡ yielded from 191.81±2.26 to 205.11±4.38 Ma, 186.01±3.72 Ma and from 200 to 230 Ma respectively. The ages of metallogenetic series Ⅲ yielded from 83.23±2.07 to 85.22±2.38 Ma, 43.49±0.87 Ma and from 83 to 116 Ma respectively. In other words, the Gejiu tin ore deposit should be a mine with multiple phases of mineralization. |
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| Keywords: | Metallogenic ages Multiple phases of mineralization The Gejiu tin ore deposit Yunnan |
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