| 曹正端,杨瑞东,廖志权,高军波,魏怀瑞,陈军,沈明联,曹正建.贵州紫云方解石矿地质特征及成矿前景浅析[J].贵州地质,2016,33(3):170-177,224 |
| 贵州紫云方解石矿地质特征及成矿前景浅析 |
| Geological Characteristics and Development Prospective of Calcite Deposit in Ziyun County，Guizhou |
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| DOI： |
| 中文关键词: 找矿远景 矿床特征 方解石矿 紫云 |
| 英文关键词:Mineralization Prospect Ore characteristics Calcite deposits Ziyun |
| 基金项目:贵州省国土厅公益性、基础性研究项目（201503404）和贵州大学重点学科建设项目。 |
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| 中文摘要: |
| 通过对紫云县内方解石矿床地质、岩石学和元素地球化学特征的研究，结果显示，区内发现的14处矿床中，每个矿床分布数个规模不等的矿体，矿体数量合计36个。褶皱、断裂构造及地层对矿床具有明显的控制作用，矿体以似板状、脉状及透镜状充填于断裂构造带内及地层中。方解石矿床（段）分布具有范围广、单个矿点规模不大、具有矿床分布稀疏、矿物成分简单、矿石质量较好的特点。矿物组成以方解石为主，含少量的萤石。区内方解石成矿与黔西南大规模低温热流体运移有着密切关系，热液流体因温度骤降引起Mg沉淀，是形成低Mg方解石的主要原因。根据方解石矿床成矿地质特征分析，认为紫云地区方解石矿属于低温热液充填型矿床。在矿区范围内及其外围沿着断裂构造方解石成矿条件优越，具有良好的找矿前景。 |
| 英文摘要: |
| alcite deposits are extensively developed and abundant resources in south-west of Qianxi.According to the regional geological，petrology and major element of ores in calcite deposit of Ziyun county survey，it shows calcite deposits were formed 14 ore blocks and scale unequal size of ore，which were distribution for a total of 36 orebody.Ore formation were restricted by strata，folds and fracture structures.Orebody were filled in the fracture structures and strata with occured as stratoid，lamellar and lenticular.Ore distribution range are wide，single scale of orebody were small with characteristics of sparse，simple composition of mineral and better ore quality of crystallization.The main minerals include calcite，with a small amount of fluorite.calcite metallogenic in the area had a close relationship with large scale fluid of low temperature migration in southwest of Qianxi.Temperature of hot fluid droping occurred during low Mg ore-forming evolution and Mg might have precipitation.This is based on geological characteristics of calcite deposits mineralization held that the calcite deposits origin belongs to low temperature hydrothermal filling type.There are superior calcite metallogenic condition along fracture structures，promising huge potentials for prospecting in area and peripheral. |
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