本文選題：修齊 + 錳礦��； 參考：《成都理工大學(xué)》2015年碩士論文

【摘要】：錳是鋼鐵冶煉行業(yè)重要的資源,同時(shí)是一種重要的國(guó)際戰(zhàn)略資源。我國(guó)的錳礦以沉積型為主,與世界主要錳礦國(guó)家類似。熱液錳礦較少,而且規(guī)模校小,經(jīng)濟(jì)意義不大。重慶是我國(guó)五大錳礦產(chǎn)出地之一,位于城口的修齊錳礦床是當(dāng)?shù)劐i礦床典型的例子。修齊錳礦床位于著名的城巴磷錳礦帶東段,同時(shí)是秦嶺造山帶和上揚(yáng)子陸塊北緣的交界處。本文以修齊錳礦床為主要研究對(duì)象,以成礦地質(zhì)作用特征研究、礦區(qū)地質(zhì)構(gòu)造研究、礦床地質(zhì)特征、礦體地質(zhì)特征與礦床地球化學(xué)研究為重點(diǎn)研究?jī)?nèi)容,進(jìn)行系統(tǒng)的探討成礦環(huán)境、成礦物質(zhì)來源、控礦因素,建立成礦模式圖。通過室內(nèi)外綜合研究,本文取得了一下主要認(rèn)識(shí)及成果:1、通過區(qū)域地質(zhì)特征研究發(fā)現(xiàn),區(qū)域上最重要的地層是震旦系和寒武系的地層,并且礦床產(chǎn)出在震旦系陡山沱組地層。2、錳礦石的礦石礦物為菱錳礦,脈石礦物為高嶺石、白云石、方解石等。礦石的結(jié)構(gòu)主要有細(xì)—中粒和球粒結(jié)構(gòu),構(gòu)造主要有條帶、條紋狀、塊狀構(gòu)造。礦石主要為原生貧錳礦石。3、微量元素特征參數(shù)分析和圖解結(jié)果表示,礦床的形成受到強(qiáng)烈的熱水流體的影響,成礦物質(zhì)的來源不具有唯一性,沉積環(huán)境為缺氧的還原環(huán)境。4、稀土元素特征參數(shù)分析和圖解結(jié)果表明,Ce有明顯的負(fù)異常,礦床的形成是在一個(gè)海洋盆地中,并且沉積并非正常的海水沉積,有熱水沉積作用影響。5、礦床具有典型的時(shí)控性和層控性,受到古地理環(huán)境、巖性巖相以及構(gòu)造的影響。
[Abstract]:Manganese is not only an important resource of iron and steel smelting industry, but also an important international strategic resource. The manganese deposits in China are mainly sedimentary type, similar to the major manganese ore countries in the world. The hydrothermal manganese ore is less, and the scale is small, so it is of little economic significance. Chongqing is one of the five major manganese ore producing places in China. The Xiuqi manganese deposit in Chengkou is a typical example of the local manganese ore deposit. The Xiuqi manganese deposit is located in the eastern section of the famous Chengba Phosphate ore belt and is the junction of the Qinling orogenic belt and the northern margin of the upper Yangtze block. In this paper, the main research object is Xiuqi manganese deposit, with the study of ore-forming geological characteristics, geological structure of ore area, geological characteristics of ore deposit, geological characteristics of orebody and geochemistry of ore deposit as the emphases. The metallogenic environment, ore-forming source, ore-controlling factors and metallogenic model map are discussed systematically. Through the indoor and outdoor comprehensive study, this paper has obtained the main knowledge and achievement: 1. Through the study of the regional geological characteristics, it is found that the most important strata in the region are the strata of the Sinian and Cambrian. The ore minerals of manganese ore are rhodochrosite, gangue minerals are kaolinite, dolomite, calcite and so on. The structure of ore mainly consists of fine-medium-grain and spherical-grained structures with striped and massive structures. The ore is mainly primary manganese ore. The trace element characteristic parameter analysis and graphic results show that the formation of ore deposit is influenced by the strong hot water fluid, and the source of the ore-forming material is not unique. The depositional environment is anoxic reductive environment .4.The REE characteristic parameter analysis and graphic results show that the ce has obvious negative anomaly, the deposit is formed in an ocean basin, and the deposit is not a normal seawater deposit. The deposit is influenced by hot water deposition. The deposit has typical temporal and stratigraphic characteristics and is influenced by paleogeographic environment, lithologic lithofacies and structure.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.32

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