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云南蒙自白牛廠銀多金屬礦礦產(chǎn)資源經(jīng)濟及資源潛力評價

發(fā)布時間:2018-01-06 13:15

  本文關(guān)鍵詞:云南蒙自白牛廠銀多金屬礦礦產(chǎn)資源經(jīng)濟及資源潛力評價 出處:《昆明理工大學》2013年碩士論文 論文類型:學位論文


  更多相關(guān)文章: 礦床地質(zhì) 資源儲量 礦床經(jīng)濟評價 資源潛力 白牛廠銀多金屬礦


【摘要】:礦床經(jīng)濟評價是在礦床地質(zhì)評價的基礎(chǔ)上,根據(jù)礦床的技術(shù)條件和經(jīng)濟條件,在未來一定時期內(nèi)對已探明礦產(chǎn)儲量進行工業(yè)開發(fā)的經(jīng)濟效益的評估。礦床經(jīng)濟評價在企業(yè)進行礦床地質(zhì)勘查、礦山設(shè)計建設(shè)和開發(fā)時都有著十分重要的指導(dǎo)意義。 本論文從地質(zhì)、技術(shù)、經(jīng)濟、資源潛力四方面入手對白牛廠銀多金屬礦進行技術(shù)經(jīng)濟評價。取得的成果與認識如下: 1、白牛廠銀多金屬礦區(qū)域成礦條件良好,屬沉積-改造-巖漿熱液疊加礦床,礦體賦存于中寒武統(tǒng)田蓬組上部(∈2tc)砂泥巖和碳酸鹽巖中,容礦巖石為硅質(zhì)巖類。在空間展布規(guī)律上礦體主要有似層狀-透鏡狀礦體、脈狀礦體與陡傾脈狀-細脈狀-網(wǎng)脈狀礦體。礦物成分較為復(fù)雜,主要金屬礦物有黃鐵礦、磁黃鐵礦、鐵閃鋅礦、閃鋅礦、方鉛礦等,礦石的結(jié)構(gòu)主要有沉積成礦作用形成的變膠狀結(jié)構(gòu)、草莓狀結(jié)構(gòu)、粒狀、條狀結(jié)構(gòu)等;熱液成礦作用形成的包嵌結(jié)構(gòu)、固溶體出溶結(jié)構(gòu)和交代結(jié)構(gòu)等;應(yīng)力作用形成的斑狀變晶結(jié)構(gòu)、柔皺結(jié)構(gòu)和糜棱結(jié)構(gòu)等。礦石構(gòu)造按成因可分為同生沉積構(gòu)造、滑動變形構(gòu)造、后生構(gòu)造,典型的有塊狀構(gòu)造、浸染狀構(gòu)造、細脈狀-網(wǎng)脈狀構(gòu)造、角礫狀構(gòu)造。 2、經(jīng)儲量估算,白牛廠礦區(qū)內(nèi)累計查明礦石量共2933.6879萬噸,其中金屬量銀2825.527噸、鉛500474噸、鋅890684噸,共生錫礦石量1803.965萬噸、金屬量62366噸,伴生錫礦石量588.9524萬噸、金屬量6964噸。截止2013年9月白牛廠礦區(qū)內(nèi)保有資源儲量礦石量2161.2226萬噸,其中金屬量銀1653.907噸、鉛284767噸、鋅586440噸,共生錫礦石量1354.4787萬噸、金屬量43586.噸、伴生錫礦石量460.3449萬噸、金屬量5055噸。消耗資源儲量為礦石量772.4653萬噸,其中金屬量銀1171.62噸;鉛215707噸;鋅304244噸;共生錫礦石量449.4863萬噸,金屬量18780噸;伴生錫礦石量128.6075萬噸,金屬量1909噸。 3、銀鉛鋅的工業(yè)發(fā)展與國內(nèi)生產(chǎn)總值相關(guān)性平穩(wěn)保持在O.98-1.1,2012年1-12月,銀鉛鋅冶煉業(yè)銷售收入總額達到2600.829億元,同比增長14.57%,高于工業(yè)平均水平的11.04%。預(yù)計在未來一定時期內(nèi),隨著我國工業(yè)化、城市化對能源、有色金屬的需求量不斷增大,電力、交通、建筑、機械、航天航空及軍工等行業(yè)迅猛發(fā)展,必然導(dǎo)致銀、鉛、鋅等有色金屬需求量繼續(xù)增大。在這個大的有利背景下,白牛廠銀多金屬礦的開發(fā)將會創(chuàng)造巨大的經(jīng)濟效益與社會效益。 4、本論文運用礦床技術(shù)經(jīng)濟評價中常見的凈現(xiàn)值和內(nèi)部收益率等動態(tài)指標從多個角度對白牛廠銀多金屬礦進行評價,得出稅后內(nèi)部收益率61.6%,投資回收期3.5年,利潤總額218347.52萬元,稅后利潤163760.63萬元,財務(wù)凈現(xiàn)值為103370.62萬元,潛在經(jīng)濟價值巨大,開發(fā)此礦山企業(yè)所獲經(jīng)濟效益極為明顯。 5、針對白牛廠礦區(qū)年生產(chǎn)礦石量較大、礦山服務(wù)年限相對較短、需繼續(xù)尋找礦產(chǎn)資源等問題,本論文根據(jù)礦體的分布特征及變化規(guī)律提出了四個找礦靶區(qū),另還有334類型礦石量4474.8347萬噸未列入本次評價范圍,由此可見,白牛廠銀多金屬礦資源潛力巨大,開發(fā)前景甚為樂觀。
[Abstract]:Deposit economic evaluation is based on geological evaluation, according to the technical conditions of deposit and economic conditions, to assess the economic benefits of industrial development has proven mineral reserves in the next period of time. The economic evaluation of deposit deposit in geological prospecting enterprises, mining design and construction and development have important guiding significance.
In this paper, the technical and economic evaluation of the silver polymetallic ore in Bai Niu factory is carried out from four aspects of geology, technology, economy and resource potential. The achievements and understanding are as follows:
1, the Bainiuchang silver polymetallic deposit metallogenic condition is good, is a depositiontransform - magmatic hydrothermal superimposed deposit, orebodies occur in the Middle Cambrian Tianpeng formation (upper 2TC) sand mudstone and carbonate rock, ore bearing rock siliceous rocks. The spatial distribution of orebodies are mainly like layered lenticular orebodies, and steep vein vein veinlet stockwork orebody. The mineral composition is complex, the main metallic minerals are pyrite, pyrrhotite, sphalerite, galena, sphalerite, ore structure are variable plastic shaped structure formed in sedimentary mineralization, strawberry shaped structure, granular, strip package structure; block structure formation of hydrothermal mineralization, exsolution texture and metasomatic structure; stress formed metacrystal structure, wrinkle structure and mylonitic structure. The ore structure according to the genesis can be divided into syngenetic sedimentary tectonic deformation, sliding structure The formation of the epigenetic structure, typical of the block structure, disseminated structure, fine pulse - network pulse structure, breccia structure.
2, the reserve estimates, Bainiuchang ore accumulated identified a total of 29 million 336 thousand and 879 tons, of which the amount of metal silver 2825.527 tons, 500474 tons of lead, zinc and 890684 tons, 18 million 39 thousand and 650 tons of tin ore symbiosis, the amount of 62366 tons of metal, with tin ore capacity of 5 million 889 thousand and 524 tons, the amount of 6964 tons of metal. The ending 2013 9 white cattle factory in the mining area of ore resources reserves of 21 million 612 thousand and 226 tons, of which the amount of metal silver 1653.907 tons, 284767 tons of lead, zinc and 586440 tons, 13 million 544 thousand and 787 tons of tin ore symbiosis, the amount of 43586. tons of metal, with tin ore capacity of 4 million 603 thousand and 449 tons, the amount of 5055 tons of metal. The consumption of reserves of 7 million 724 thousand and 653 tons of ore, the amount of metal silver 1171.62 tons of lead; 215707 tons; 304244 tons of zinc; symbiosis of tin ore is 4 million 494 thousand and 863 tons, the amount of 18780 tons of metal; associated tin ore capacity of 1 million 286 thousand and 75 tons, the amount of 1909 tons of metal.
3, industrial development and GDP correlation stable Ag Pb Zn maintained at O.98-1.12012 years 1-12 months, silver lead zinc smelting industry total sales revenue reached 260 billion 82 million 900 thousand yuan, an increase of 14.57%, higher than the industry average level of 11.04%. is expected in the next period of time, as China's industrialization, city of energy, demand for non-ferrous metals continued increase power, transportation, construction, machinery, aerospace and military industries rapid development, will inevitably lead to silver, lead, zinc and other non-ferrous metals demand continues to increase. Under this favorable background, the development of Bainiuchang silver polymetallic ore will create enormous economic benefits and social benefits.
4, the use of technical and economic evaluation of deposit in common NPV and IRR dynamic index to evaluate on the bovine silver polymetallic ore from many angles, the internal revenue tax rate of 61.6%, the payback period is 3.5 years, a total profit of 2 billion 183 million 475 thousand and 200 yuan, net profit of 1 billion 637 million 606 thousand and 300 yuan, the financial net present value is 1 billion 33 million 706 thousand and 200 yuan and the huge potential economic value, the development of the mining enterprises the economic benefit is very obvious.
5, the Bainiuchang ore production amount is larger, the service life of the mine is relatively short, need to continue to search for mineral resources, this paper is based on the distribution characteristics and variation regularity of orebody and puts forward four prospecting target area, and the other 334 types of 44 million 748 thousand and 347 tons of ore are not listed in the scope of this evaluation, thus, the Bainiuchang silver polymetallic ore resource potential, development prospects are very optimistic.

【學位授予單位】:昆明理工大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:F426.1

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