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  本文選題：哈圖金礦 + 礦床特征��； 參考：《新疆大學(xué)》2015年碩士論文

【摘要】：準(zhǔn)噶爾西部是中亞成礦域的重要組成部分,具有復(fù)雜的地質(zhì)構(gòu)造格局和演化歷史。哈圖齊Ⅰ金礦是西準(zhǔn)噶爾地區(qū)最大的金礦,最近幾年的找礦勘探取得重大進(jìn)展:在500~900m深部發(fā)現(xiàn)一些新礦體,且沒有見到向下尖滅的跡象,顯示金礦區(qū)深部有工業(yè)礦體存在的可能性,同時確認(rèn)礦體的分布受斷裂構(gòu)造控制。1.區(qū)域內(nèi)NE向主干斷裂為金礦化的主要導(dǎo)礦構(gòu)造,而次級NE、EW以及NW向斷裂是主要的控礦構(gòu)造。哈圖斷裂和安齊斷裂之間的斷裂帶利于的金礦保存。2.礦區(qū)巖石的分布特征顯示沉積環(huán)境側(cè)向上的變化規(guī)律:西部為湖相環(huán)境;中部為湖相與陸相交互區(qū)域;中東部主要以陸相火山作用為主;東部靠近火山口,主要形成厚層玄武巖-薄層凝灰?guī)r建造。3.L27脈組整體向東側(cè)伏,沿側(cè)伏方向由淺至深分布的三個主要礦脈為L27、L27-8和L27-14。根據(jù)已知控礦斷裂和礦脈雁列式分布的特征,推測沿側(cè)伏方向深部可能存在其他礦脈,它們將出現(xiàn)在控制L27脈群分布的EW向構(gòu)造與安齊斷裂的交匯處,并有所膨大。4.EW向斷裂組在靠近安齊斷裂附近逐漸轉(zhuǎn)變?yōu)镹EE向,根據(jù)輝綠巖鋯石SHRIMP年代學(xué)研究說明這些巖脈和礦脈的斷裂不是同時代形成的,是安齊斷裂多期活動的結(jié)果。5.金礦化的時代與區(qū)域內(nèi)花崗巖侵位的時代基本一致,與花崗質(zhì)巖漿有關(guān)的富含金屬元素的巖漿熱液沿安齊斷裂流動。遷移過程中,熱液與下石炭統(tǒng)火山-沉積巖發(fā)生水巖反應(yīng),并萃取了金屬成礦元素。根據(jù)遷移特征,建立哈圖金礦的成礦模式示意圖。
[Abstract]:The western Junggar is an important part of the Central Asian metallogenic domain, with complex geological structure and evolution history. The hutuqi I gold deposit is the largest gold deposit in West Junggar area, and in recent years, great progress has been made in prospecting and exploration. The discovery of some new ore bodies in the deep 500~900m has not seen any signs of downward cusp extinction, showing the depth of the gold deposit. There is the possibility of the existence of industrial orebodies, and it is confirmed that the distribution of the ore body is controlled by the fault structure in the.1. area and the main fault is the main ore conducting structure of the gold mineralization, while the secondary NE, EW and NW trending faults are the main ore controlling structures. The gold deposits of the fault zone between the HTU fault and the unqi fault are beneficial to the distribution of the rock in the.2. mining area. In the west, the western region is a lake facies environment, the central part is the lake facies and the continental facies, the Middle East is mainly continental facies volcanism, and the East is near the crater, the main formation of the thick basalt and TLC is the.3.L27 vein formation to the east side, and the direction from the shallow to the deep three main directions. The ore veins are L27, L27-8 and L27-14., according to the characteristics of the known ore control fracture and the distribution of the ore vein goose column, presumably there may be other veins in the deep side of the lateral volt direction, which will appear at the intersection of the EW direction structure and the inqi fault in the control of the distribution of the L27 vein group, and the expansion of the.4.EW direction fracture group gradually to the NEE direction near the inqi fault. According to the zircon SHRIMP chronology of diabase, the fracture of these veins and veins is not formed in the same epoch, it is the result of the multi period activity of an Qi Qi fault. The age of.5. gold mineralization is basically consistent with the age of granitic emplacement in the region, and the magma rich hydrothermal fluid, which is related to the granitic magma, flows along the unqi fault. During the process, the hydrothermal reaction with the lower Carboniferous volcanic sedimentary rocks and the metallogenic elements were extracted. According to the characteristics of the migration, a schematic diagram of the metallogenic model of the Hutu gold deposit was established.
【學(xué)位授予單位】：新疆大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.51

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本文編號：2007826