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| 广西大厂拉么锌铜多金属矿床成岩成矿作用年代学研究 | |
| 引用本文： | 李华芹,王登红,梅玉萍,梁婷,陈振宇,郭春丽,应立娟.广西大厂拉么锌铜多金属矿床成岩成矿作用年代学研究[J].地质学报,2008,82(7):912-2008-01-30. |
| 作者姓名： | 李华芹 王登红 梅玉萍 梁婷 陈振宇 郭春丽 应立娟 |
| 作者单位： | 1. 中国地质调查局宜昌地质矿产研究所,湖北宜昌,443003 2. 中国地质科学院矿产资源研究所,北京,100037 3. 长安大学成矿作用及其动力学开放实验室,西安,710054 |
| 基金项目： | 本文为国家科技支撑计划“南岭地区有色贵重金属成矿潜力及探测综合技术示范研究”课题（编号 2006BAB01B03）；地质大调查“我国重要矿产和区域成矿规律研究”（编号 1212010633903）、“中国成矿体系综合研究”项目（编号 1212010634002）；危机矿山接替资源勘查计划“广西南丹铜坑锡矿接替资源勘查”（编号 200545022）资助的成果 |
| 摘 要： | 本文对广西大厂矿田拉么矿区内出露的酸性侵入岩和矿石进行了精细的年代学研究，分别获得龙箱盖含斑黑云母花岗岩锆石原位SHRIMP UPb和全岩RbSr等时线年龄为94±4Ma（95%可信度）和98.6±1.9Ma（95%可信度），矽卡岩成矿期锌铜矿石中石英矿物RbSr等时线年龄为98.6±6Ma（95%可信度）。上述测定结果表明，拉么锌铜多金属矿床的成矿年龄与相关岩体的成岩年龄接近，均形成于早白垩世晚期。 |
| 关 键 词： | 成岩成矿作用 锆石SHRIMP UPb和全岩RbSr等时线年龄 拉么锌铜多金属矿床 广西大厂 |
| 收稿时间： | 2008/1/30 0:00:00 |
| 修稿时间： | 2008/3/20 0:00:00 |
Lithogenesis and Mineralization Chronology Study on the Lamo Zinc Copper Polymetallic Ore Deposit in Dachang Orefield, Guangxi |
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| LI Huaqin,Wang Denghong,MEI Yuping,LIANG Ting,CHEN Zhenyu,GUO Chunli and YING Lijuan.Lithogenesis and Mineralization Chronology Study on the Lamo Zinc Copper Polymetallic Ore Deposit in Dachang Orefield, Guangxi[J].Acta Geologica Sinica,2008,82(7):912-2008-01-30. | |
| Authors: | LI Huaqin Wang Denghong MEI Yuping LIANG Ting CHEN Zhenyu GUO Chunli and YING Lijuan |
| Affiliation: | Yichang Institute of Geology and Mineral Resources;Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resources, CAGS;Yichang Institute of Geology and Mineral Resources;Chang'an University;Institute of Mineral Resources, CAGS;Institute of Mineral Resources, CAGS;Institute of Mineral Resources, CAGS,Key Laboratory of Metallogeny and Mineral Resource Assessment |
| Abstract: | This article presents the precise chronology study on the acid intrusive rocks and mineralization in the Lame ore deposit of Dachang ore field in Guangxi using different isotopic datings. SHRIMP U Pb in situ zircon age of phenocryst bearing biotite granite is 94±4Ma (with 95% credibility), whole rock Rb Sr isochrone age of that is 98.6±1.9Ma (with 95% credibility), and quartz Rb Sr isochrone age of zinc copper ore during skarn mineralization is 98.6±6Ma (with 95% credibility). These results indicate that mineralization age of the Lame zinc copper ore deposit is consistent to the lithogenesis age of correlated plutons, both at the late stage of Late Cretaceous Epoch. |
| Keywords: | lithogenesis and mineralization SHRIMP U-Pb zircon age and whole rock Rb-Sr isochrone age Lamo zinc-copper polymetallic ore deposit Dachang ore field in Guangxi |
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