本文關鍵詞：伊朗夏拉夫阿巴德金礦礦石礦物學特征研究　出處：《東華理工大學》2017年碩士論文　論文類型：學位論文

  更多相關文章： 夏拉夫阿巴德金礦 礦物學 控礦因素 找礦標志

【摘要】：夏拉夫阿巴德金礦位于伊朗東阿塞拜疆省火山巖成礦帶,礦床類型為石英脈型金礦。該論文對夏拉夫阿巴德金礦進行了詳細系統(tǒng)的化學成分分析、礦石礦物學特征研究,對該礦床的控礦因素進行分析并建立了找礦標志。夏拉夫阿巴德金礦典型礦石樣品化學分析和礦物學研究結果表明:夏拉夫阿巴德金礦礦物類型主要是銀金礦,少量銀金礦邊緣有自然金分布;礦石類型主要為含硫化物含金石英脈氧化礦石和含硫化物含金石英脈原生礦石,礦石形態(tài)復雜,以長角粒狀為主,其次是尖角粒狀、枝杈狀、角粒狀、渾圓狀和線狀等;含金礦物粒度以細粒(0.01~0.037mm)明金為主,占79.66%,其次是微粒(≤0.01mm)金占20.34%;金的賦存狀態(tài)以粒間金為主,約占79.61%,是礦石中金的主要存在類型,其次包裹金,占16.51%,裂隙金相對較少,占3.88%;通過實驗分析表明在金的嵌布類型中,粒間金、裂隙金比較容易解離,包裹金比較難解離;夏拉夫阿巴德金礦控礦因素進行研究,認為地層、構造、巖漿巖和熱液蝕變是主要控礦因素,在此基礎上初步探討了金礦的成礦機制。通過控礦因素及礦床成因的探討建立了夏拉夫阿巴德金礦的找礦標志:(1)硅化、黃鐵礦化和褪色化等幾種蝕變作為地質找礦標志;(2)酸性火山巖和火山碎屑巖可以作為找礦的地層標志;(3)斷裂帶的構造也是重要的找礦標志之一;(4)Au和Ag是主要的成礦元素,可以作為金礦物的成礦指示元素。通過對夏拉夫阿巴德金礦的詳細礦物學、化學成分、控礦因素及找礦標志的研究工作,為該區(qū)域進一步開展找礦工作和開采開發(fā)提供理論依據(jù),也為下一步找礦工作和工程部署工作提供指導。
[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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