| 云南澜沧江中南段多金属成矿谱系分析 |
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| 引用本文： | 陈守余,赵鹏大,胡光道.云南澜沧江中南段多金属成矿谱系分析[J].地质找矿论丛,2007,22(3):172-178. |
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| 作者姓名： | 陈守余 赵鹏大 胡光道 |
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| 作者单位： | 中国地质大学,地质过程与矿产资源国家重点实验室,资源学院,武汉,430074 |
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| 基金项目： | 国土资源部科技攻关项目 |
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| 摘 要： | 基于GIS空间分析技术,对云南澜沧江中南段多金属矿床的赋矿地层时间谱系、容矿构造空间谱系和矿床成因谱系进行了较系统的分析.研究表明,下-中元古界、三叠系、泥盆系、二叠系是本区最重要的赋矿层位,有两个聚矿期和多个时代地层含矿的特点,不同时代地层的含矿性具有多样性和专属型特征,元古宙火山沉积为主的建造是铁-铜、钨-锡矿为主的赋矿层位,晚古生代-中生代早期是沉积、裂谷火山活动强烈时期,金、铜、铅、锌、银、汞、锑、钨、锡多金属矿床高度聚集.自东向西为中生代坳陷区金、铜、镍成矿带,思茅-龙洞河晚古生代-三叠纪沉积盆地铜、铅、锌、银成矿带,岩浆弧地块钨、锡、铅-锌、铁成矿带,浅变质岩基底铅-锌-银、铁成矿带,被动边缘活动带金、铅-锌-银、锡成矿区和保山-镇康微地块铅-锌、铜、铁、汞成矿带,构成了容矿构造空间谱系.全区多金属矿床有沉积、沉积改造、岩浆-变质热液、火山沉积-火山热液四大成矿谱系,14种成矿类型,铜多金属、铅-锌-银、锡-钨矿床是研究区最具找矿前景的优势矿种.
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| 关 键 词： | 含矿丰度 赋矿强度 成矿谱系 澜沧江中南段 云南省 |
| 文章编号： | 1001-1412（2007）03-0172-07 |
| 收稿时间： | 2006/5/19 0:00:00 |
| 修稿时间： | 2006-05-19 |
POLYMETAL MINEROGENETIC PEDIGREE ANALYSIS OF THE MID-SOUTH LANTSANG REGION,YUNNAN PROVINCE |
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| CHEN Shou-yu,ZHAO Peng-da and HU Guang-dao.POLYMETAL MINEROGENETIC PEDIGREE ANALYSIS OF THE MID-SOUTH LANTSANG REGION,YUNNAN PROVINCE[J].Contributions to Geology and Mineral Resources Research,2007,22(3):172-178. |
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| Authors: | CHEN Shou-yu ZHAO Peng-da and HU Guang-dao |
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| Institution: | State Key Laboratory of Geo-Processes and Mineral Resources,Faculty of Earth Resources,China University of Geosciences,Wuhan,430074,China |
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| Abstract: | The GIS Spatial analyzing technology-based analysis of temporal pedigree of ore-host stratum,spatial pedigree of ore-host structure and genetic pedigree of polymetal deposits in mid-southern Lantsang region shows that: Early-Middle Proterozoic Group,Triassic System,Devonian System,Permian System are the main ore-bearing horizons in the area;ore deposits are concentrated in two epochs;multi-stratum of different time contain ore deposits;different ore deposits occur in different stratum and a certain type of ore deposit occurs in a certain stratum i.e.the minerogenetic specialization.The volcanics-dominated Proterozoic formation is the Fe-Cu ore deposit and W-Sn ore deposit-dominated horizon; Au,Cu,Pb,Zn,Ag,Hg,Sb,W,Sn polymetal ore deposits are highly concentrated during the Upper Paleozoic-Middle Mesozoic sedimentary and strong rift volcanic activities.From east to west occur: Au,Cu,Ni ore belt in Mesozoic depression area;Cu,Pb,Zn,Ag ore belt in Late Paleozoic-Triassic Simao-Longdonghe sedimentary basin;W,Sn,Pb-Zn,Fe ore belt in magmatic arc;Pb-Zn-Ag,Fe ore belt in the low grade metamorphic basement;Au,Pb-Zn Ag,Sn ore belt at passive continental mobile belt;Pb-Zn,Cu,Fe,Hg ore belt in Baoshan-Zhenkang block that constitute spatial pedigree of the ore-host tectonics.There are sedimentary,sedimentary-reworking,magmatic-hydrothermal,volcao-sedimentary-volcano-hydrothermal,the main 4 genetic pedigrees and 14 types of ore deposits in the study area. Cu-polymetal,Pb-Zn-Ag,Sn-W ore deposits are most potential for further prospecting in the area. |
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| Keywords: | ore abundance ore intensity minerogenic pedigree the mid-south Lantsang region Yunnan province |
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