内蒙古太基敖包南多金属矿床地质特征及成矿预测

发布时间：2018-04-24 11:20

本文选题：多金属矿 + 成矿特征　；参考：《辽宁工程技术大学》2015年硕士论文

【摘要】：针对有色金属在人民生活中占有的重要地位,尤其是铜、银、铅、锌等多金属是各个行业不可或缺的重要原料,随着国民经济的发展和国内外市场需求的增大,对有色金属资源的勘探尤为紧迫。而内蒙古太基敖包南矿区位于大兴安岭多金属、贵金属矿成矿带,矿产资源丰富,具有较大的找矿潜力。因此有必要在该区开展矿床地质特征及成矿预测的研究。本文在收集前人研究成果的基础上对内蒙古太基敖包南多金属矿进行了矿床成因与控矿地质因素等研究,结合激电中梯测量结果、土壤地球化学测量结果及矿体矿石特征研究分析,探讨了该区多金属矿的成矿规律、矿床成因,并建立了成矿模式,对区内成矿远景区进行预测。得出太基敖包南多金属矿属于热液充填型多金属矿床,主要成矿时间为173～140Ma,即中侏罗世—晚侏罗世；主要产于燕山早期花岗斑岩体中的构造蚀变裂隙带内,以裂隙充填为主,其中构造裂隙带成群分布特征明显,将区内分为Ⅰ号矿段西南部、东北部矿化带及Ⅱ号矿段中部矿化带三个矿化带；矿石构造主要为细脉、网脉状；与矿化有关的围岩蚀变主要有硅化—黑云母化—绢云母化蚀变带(内带),绿泥石化蚀变带(中带),碳酸盐化—萤石化蚀变带(外带)。区内圈出两个成矿靶区,分别为南部A号多金属找矿远景区、中部B号北西向多金属找矿远景区。
[Abstract]:Non-ferrous metals play an important role in people's lives, especially copper, silver, lead, zinc and other polymetallic materials. With the development of national economy and the increasing demand of domestic and foreign markets, The exploration of nonferrous metal resources is particularly urgent. The Taijiaobonan mining area in Inner Mongolia is located in the Daxing'anling polymetallic, precious metal metallogenic belt, rich in mineral resources, with great prospecting potential. Therefore, it is necessary to study the geological characteristics and metallogenic prediction of ore deposits in this area. In this paper, based on the previous research results, the ore deposit genesis and ore-controlling geological factors of Taiji Aobonan polymetallic ore deposit in Inner Mongolia are studied. Soil geochemical survey results and ore ore characteristics of ore bodies are studied. The metallogenic regularity and genesis of polymetallic deposits in this area are discussed, and the metallogenic model is established to predict the metallogenic prospective areas in this area. It is concluded that the Taijiaobonan polymetallic deposit belongs to the hydrothermal filling type polymetallic deposit, the main metallogenic time is 1730.140 Ma, that is, the middle Jurassic-late Jurassic, and mainly occurs in the structural alteration fissure zone of the early Yanshanian granitic porphyry, and is mainly filled with fissures. The tectonic fissure zone is divided into three mineralization zones: southwest of No. 1 ore segment, northeast mineralization zone and central mineralization zone of No.2 ore segment, and the ore structure is mainly vein-like and net-vein. The main wall rock alteration related to mineralization are silicitization biotite sericite alteration zone (inner zone) green mud petrochemical alteration zone (middle zone) carbonation-fluorite alteration zone (outer zone). There are two ore-forming target areas in the area, one is the southern A polymetallic prospecting area, the other is the central B north-west polymetallic prospecting area.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.2

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