| 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,(3):172-178 |
| 云南澜沧江中南段多金属成矿谱系分析 |
| POLYMETAL MINEROGENETIC PEDIGREE ANALYSIS OF THE MID-SOUTH LANTSANG REGION,YUNNAN PROVINCE |
| 投稿时间：2006-05-19 |
| DOI：10.6053/j.issn.1001-1412.2007.3. 002 |
| 中文关键词: 含矿丰度 赋矿强度 成矿谱系 澜沧江中南段 云南省 |
| 英文关键词:ore abundance ore intensity minerogenic pedigree the mid-south Lantsang region Yunnan province |
| 基金项目:国土资源部"十五"攻关项目(编号:20010307)资助 |
| 作者 | 单位 | | 陈守余 | 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 | | 赵鹏大 | 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 | | 胡光道 | 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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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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