伊朗夏拉夫阿巴德金矿矿石矿物学特征研究

发布时间：2018-01-10 08:09

  本文关键词：伊朗夏拉夫阿巴德金矿矿石矿物学特征研究　出处：《东华理工大学》2017年硕士论文　论文类型：学位论文

  更多相关文章： 夏拉夫阿巴德金矿 矿物学 控矿因素 找矿标志

【摘要】：夏拉夫阿巴德金矿位于伊朗东阿塞拜疆省火山岩成矿带,矿床类型为石英脉型金矿。该论文对夏拉夫阿巴德金矿进行了详细系统的化学成分分析、矿石矿物学特征研究,对该矿床的控矿因素进行分析并建立了找矿标志。夏拉夫阿巴德金矿典型矿石样品化学分析和矿物学研究结果表明:夏拉夫阿巴德金矿矿物类型主要是银金矿,少量银金矿边缘有自然金分布;矿石类型主要为含硫化物含金石英脉氧化矿石和含硫化物含金石英脉原生矿石,矿石形态复杂,以长角粒状为主,其次是尖角粒状、枝杈状、角粒状、浑圆状和线状等;含金矿物粒度以细粒(0.01~0.037mm)明金为主,占79.66%,其次是微粒(≤0.01mm)金占20.34%;金的赋存状态以粒间金为主,约占79.61%,是矿石中金的主要存在类型,其次包裹金,占16.51%,裂隙金相对较少,占3.88%;通过实验分析表明在金的嵌布类型中,粒间金、裂隙金比较容易解离,包裹金比较难解离;夏拉夫阿巴德金矿控矿因素进行研究,认为地层、构造、岩浆岩和热液蚀变是主要控矿因素,在此基础上初步探讨了金矿的成矿机制。通过控矿因素及矿床成因的探讨建立了夏拉夫阿巴德金矿的找矿标志:(1)硅化、黄铁矿化和褪色化等几种蚀变作为地质找矿标志;(2)酸性火山岩和火山碎屑岩可以作为找矿的地层标志;(3)断裂带的构造也是重要的找矿标志之一;(4)Au和Ag是主要的成矿元素,可以作为金矿物的成矿指示元素。通过对夏拉夫阿巴德金矿的详细矿物学、化学成分、控矿因素及找矿标志的研究工作,为该区域进一步开展找矿工作和开采开发提供理论依据,也为下一步找矿工作和工程部署工作提供指导。
[Abstract]:The Xiaraf Abad gold deposit is located in the volcanic metallogenic belt of eastern Azerbaijan province of Iran, and the type of deposit is quartz vein type gold deposit. The chemical composition of the Xiaraf Abad gold deposit is analyzed in detail in this paper. Study on mineralogical characteristics of ore. The ore-controlling factors of the deposit are analyzed and the prospecting criteria are established. The results of chemical analysis and mineralogical study of the typical ore samples of the Xiaraf Abad gold deposit show that the mineral types of the Xiaraf Abad gold deposit are mainly silver gold deposits. There is a natural gold distribution on the edge of a few silver gold deposits. The ore types are mainly sulfide-bearing gold-bearing quartz vein oxidized ore and sulfide-bearing gold-bearing quartz vein primary ore. Rounded and linear; The granularity of gold-bearing material is mainly fine grain (0.01mm) and gold (79.66 mm), followed by particles (鈮，

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