会泽铅锌矿矿山厂1752中段6号矿体地质特征
2016-10-21贺皎皎邱文龙蔡雨辰贺贵祥
贺皎皎 邱文龙 蔡雨辰 贺贵祥


摘要:本文以会泽铅锌矿床为研究对象,通过对比1752中段13#和6#出矿道地质及6号矿体的矿体特征,主要得到了以下认识:矿体铅锌矿均赋存于摆佐组(C1b)层位中,岩性为中粗晶白云岩。矿体主要走向为NW-SE,自13#-6#出矿道为145°方向,矿体呈现水平方向逐渐尖灭的特点,矿体整体受NE向构造控制。蚀变岩主要为针孔状、粗晶白云岩,呈透镜状、脉状产出,而沉积岩主要为细晶灰岩、白云质灰岩。闪锌矿、方铅矿、黄铁矿为最主要的矿石矿物。脉石矿物主要为白云石、方解石、黄铁矿。
Abstract: This paper uses Huize depsosit as the research object to summarize the regional geological setting and geological characteristics of the deposit. Based on the comparison of the geology of 13# and 6# ore tracks on the middle of 1751 mine road and the ore characteristics of 6# ore, the understanding is gotten that lead-zinc ore bodies are hosted in swing junior group (C1b) layers, the lithology fine grain is coarse crystalline dolomite. The main trend of ore body is NW-SE, the direction of 13#-6# ore track is 145°, the ore track gradually pinches out by the horizontal orebody, it is gnificantly affected by NE trending structural control. The alterated rocks are mainly includes pinhole altered rocks, coarse-grained dolomite, lenticular, veins output, and the sedimentary rock mainly includes limestone, dolomitic limestone. Sphalerite, galena, pyrite are the most important ore minerals. Gangue minerals mainly include dolomite, calcite, pyrite.
关键词:矿体特征;地质特征;6号矿体;1752中段;会泽铅锌矿床
Key words: ore characteristics;geological characteristics;6# ore bodies;1752m level;Huize mine
中图分类号:TD912 文献标识码:A 文章编号:1006-4311(2016)09-0190-03
0 引言
会泽铅锌矿区位于近南北向小江断裂与曲靖-昭通隐伏断裂带之间,金牛厂-矿山廠冲断褶皱构造带的NE端;分布于会泽县东北部的龙王庙-车家坪-牛栏江一带,北起龙王庙,南至车家坪一线,西起麒麟厂逆断层,东至牛栏江、银厂坡逆断层一线,面积约10平方千米。目前,已发现矿山厂、麒麟厂两个大型铅锌矿床、银厂坡中型银铅锌矿床和龙头山、小黑箐、滥银厂等铅锌矿点及马脖子、长箐、双石头等铅锌矿化点。
矿区地层以前震旦系为变质基底,震旦系、古生界为沉积盖层。下石炭统摆佐组(C1b)在矿区广泛出露,走向NE、倾向SE,是矿区最主要的赋矿地层,与下伏地层大塘组(C1d)和上覆地层威宁组(C2w)呈整合接触。
矿区构造以发育北东-南西向褶皱与断层组成破背斜为特征。北东—南西向的压扭性逆断层是矿床重要的控矿构造,其中矿山厂、麒麟厂、银厂坡断层组成三重叠瓦状构造,为矿区的主干断层,三条断裂之间由近南北向的东头逆断层连通。……
