本文選題：銀鉛礦 + 礦體特征��； 參考：《中國(guó)地質(zhì)大學(xué)(北京)》2015年碩士論文

【摘要】：銀具很多優(yōu)點(diǎn),導(dǎo)熱性能佳、導(dǎo)電性強(qiáng)、延展性好,還耐腐蝕,所以廣泛應(yīng)用于現(xiàn)代國(guó)防、工業(yè)、生活等領(lǐng)域,成為現(xiàn)代社會(huì)不可或缺的重要原料。龍門店銀鉛礦研究區(qū)位于豫西熊耳山北坡,龍王廟岳坪溝構(gòu)造帶上,主要礦體賦存與太古界太華群片麻巖系中,礦區(qū)北鄰鐵爐坪大型銀鉛礦。本文運(yùn)用地球化學(xué)、礦物學(xué)等多學(xué)科的理論和方法,對(duì)礦體的分布賦存規(guī)律、礦體的形態(tài)、厚度、產(chǎn)狀、對(duì)礦石成分、化學(xué)組分、含量變化、礦石結(jié)構(gòu)、構(gòu)造、礦石自然類型、工業(yè)類型及礦成礦機(jī)制等都進(jìn)行了較為詳細(xì)的研究,并指出了找礦方向。研究發(fā)現(xiàn),龍門店銀鉛礦石中礦物種類比較多,主要金屬礦物有輝銀礦、自然銀、角銀礦、銀黝銅礦、銀金礦、黃鐵礦、黃銅礦、方鉛礦、磁黃鐵礦、磁鐵礦、白鉛礦、孔雀石,非金屬礦物有長(zhǎng)石、石英、角閃石、云母及碳酸鹽類礦物等。前期太華群地層中的銀在區(qū)域變質(zhì)過程中產(chǎn)生活化和遷移,并在有利部位初步富集;熊耳群火山活動(dòng)一邊使得斷裂構(gòu)造帶活化,一邊又使銀再次通過遷移而達(dá)到富集;大規(guī)模的燕山期巖漿活動(dòng)使得蝕變帶部分?jǐn)U容,且自身攜帶的成礦物質(zhì)開始進(jìn)入,為成礦物質(zhì)的活化和轉(zhuǎn)移提供熱源,從而形成了富含礦物的熱液。NNE向斷裂構(gòu)造帶為金屬礦物沉淀和含礦熱液上升提供場(chǎng)所和通道。如此形成了今天的銀鉛礦床作者就研究區(qū)銀鉛礦的礦體特征找、成礦規(guī)律、礦標(biāo)志及找礦方向進(jìn)行了總結(jié),指出了今后的找礦方向。
[Abstract]:Silver has many advantages, such as good thermal conductivity, good electrical conductivity, good ductility, corrosion resistance, so it is widely used in modern national defense, industry, life and other fields, become an indispensable and important raw materials in modern society. Longchang silver-lead ore research area is located on the northern slope of Xiongershan, Longwangmiao Yuetinggou structural belt. The main ore bodies are located in the gneiss series of Taihua Group in Archaean, and the large silver lead ore in Tielaoping is located in the north of the ore area. Based on the theory and method of geochemistry and mineralogy, this paper deals with the distribution and occurrence of ore body, the shape, thickness, occurrence of ore body, the change of ore composition, chemical composition, content change, ore structure, and the natural type of ore. The industrial types and ore-forming mechanism are studied in detail, and the prospecting direction is pointed out. It has been found that there are many kinds of minerals in the silver lead ores in Longshen, and the main metallic minerals are pyroxene, natural silver, hornite, silver tetrahedrite, silver gold, pyrite, chalcopyrite, galena, pyrrhotite, magnetite, white lead. Malachite, non-metallic minerals have feldspar, quartz, hornblende, mica and carbonate minerals. In the early stage, the silver in the Taihua Group strata was activated and migrated during the regional metamorphism, and initially enriched in the favorable position, while the Xiong'er Group volcanic activity activated the fault structural zone, on the other hand, the silver was enriched again through migration. The large-scale Yanshanian magmatic activities partially expanded the alteration zone, and the ore-forming materials carried by themselves began to enter, which provided a heat source for the activation and transfer of the ore-forming materials. Thus, the mineral-rich hydrothermal. NNE trending fault zone provides a place and channel for the deposition of metallic minerals and the rise of ore-bearing hydrothermal solution. In this way, the authors of today's silver and lead deposits have summarized the orebody characteristics, metallogenic rules, ore marks and prospecting directions of the silver and lead ore deposits in the study area, and pointed out the prospecting direction in the future.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.52

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本文編號(hào)：1987724