| 东坪铅锌矿构控特征及矿床成因 |
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| 引用本文： | 罗家贤.东坪铅锌矿构控特征及矿床成因[J].云南地质,2003,22(3):304-312. |
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| 作者姓名： | 罗家贤 |
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| 作者单位： | 云南地矿资源股份有限公司,曲靖分公司,云南,曲靖,655000 |
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| 摘 要： | 东坪铅锌矿是巧家～小牛栏铅锌成矿亚带上一个有代表性的铅锌矿床,与处在同一成矿带上的其它铅锌矿床(点)有许多相似之处。不同的是该矿床由层间剥离空间或顺层挤压破碎带控制的矿床规模较大,并随上震旦统灯影组第二段赋矿层位延伸较远,显示较典型的层控加构控、与岩浆成因无关的沉积叠加中低温热液矿床类型。经对该区进一步物探与地质勘查证实：矿区SE边缘的巧家～小牛栏断层与派生的次一级NW向断层交汇部位,存在厚大的铅锌矿体,其深部也存在一定范围和宽度的“低阻高激化异常体”,应是该区今后找矿重点。
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| 关 键 词： | 东坪铅锌矿 矿床成因 沉积叠加 中低温热液矿床 巧家县 云南 |
| 文章编号： | 1004-1885(2003)03-304-9 |
| 修稿时间： | 2003年6月8日 |
CHARACTERISTICS OF ORE-CONTROLLING STRUCTURE AND GENESIS OF DONGPING LEAD-ZINC DEPOSIT |
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| LUO Jia-xian Qujing Branch,Yunnan Mineral Resources Company.CHARACTERISTICS OF ORE-CONTROLLING STRUCTURE AND GENESIS OF DONGPING LEAD-ZINC DEPOSIT[J].Yunnan Geology,2003,22(3):304-312. |
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| Authors: | LUO Jia-xian [Qujing Branch Yunnan Mineral Resources Company |
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| Abstract: | The Dongping Pb-Zn deposit is a representative of the Qiaojia-Xiaoniulan Pb-Zn Metallogenetic subzone.The characteristics of this ore deposit are the large scale of the deposit controlled by interbed space or bedding press fracture,the far extension following the ore-bearing horizon in the second member of upper Sinian Dengying Formation,showing the typical stratabound,structure controlling and sedimentation superimposed by medium-low T hydrothermal fluid without connection to magmatism.According to the geophysical and geological exploration in this area,there are a large Pb-Zn orebody and a deep"low-resistence and high-excitation anomaly"at the intersection of Qiaojia-Xiaoniulan fault with NW derived fault along the SE margin of the area. |
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| Keywords: | Stratabound and Strueture Control Sedimentation Superimposed by Medium-Low T Hydrothermal Deposit Ore-Prospecting Focus Dongping Qiaojia |
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