本文選題：五常市　切入點：鉛鋅礦床　出處：《吉林大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：袁家屯鉛鋅礦床位于小興安嶺—張廣才嶺鐵銅有色金屬成礦帶的南部、濱東礦化集中區(qū)內(nèi)，其大地構(gòu)造位置為小興安嶺-松嫩地塊東緣與伊春-延壽地槽褶皺系西緣的接壤處，該區(qū)是熱液型、矽卡巖型礦床的重要成礦地帶，特殊的構(gòu)造環(huán)境及相關(guān)的巖漿活動，為區(qū)內(nèi)銅、鉛、鋅、鐵多金屬礦床的形成提供了有利條件。 袁家屯鉛鋅礦床為近年來發(fā)現(xiàn)并勘查的小型礦床，二疊系下統(tǒng)土門嶺組地層為區(qū)內(nèi)多金屬礦體的主要賦礦圍巖，，燕山晚期花崗閃長巖成礦作用在區(qū)內(nèi)發(fā)育。礦體賦存于土門嶺組大理巖與花崗閃長巖接觸交代形成的矽卡巖外帶內(nèi)。受北北西向袁家屯斷裂構(gòu)造的影響，在區(qū)內(nèi)形成一條北西～南東向礦化蝕變帶,在該礦化帶內(nèi)產(chǎn)出鉛鋅工業(yè)礦體八條。賦礦部位是接觸帶矽卡巖及接觸帶外側(cè)圍巖的層間構(gòu)造破碎帶。礦體種類有細脈浸染狀、脈狀、扁豆?fàn)�。主要金屬礦物為方鉛礦、閃鋅礦、黃銅礦、黃鐵礦等。礦床成因類型為接觸交代矽卡巖型。 研究認為礦區(qū)的土門嶺組地層構(gòu)成鉛鋅成礦的重要地質(zhì)條件，土門嶺組為銅鉛鋅鐵成礦提供了部分物質(zhì)來源和重要成礦環(huán)境。燕山期花崗閃長巖與成礦關(guān)系密切，巖漿作用的巨大熱量是促使金屬元素溶解于介質(zhì)并遷移的主要能源。巖體與地層接觸帶構(gòu)造、土門嶺組碳酸鹽地層的層間破碎帶構(gòu)造，構(gòu)成區(qū)內(nèi)銅鉛鋅鐵成礦的重要控礦條件，控制鉛鋅礦化蝕變帶及礦體的形態(tài)、規(guī)模、產(chǎn)狀及空間展布特征。 對區(qū)域成礦地質(zhì)條件和找礦標(biāo)志研究結(jié)果表明，該區(qū)具有較好進一步找礦潛力，具有找尋中型CuPbZn礦床的良好前景。根據(jù)研究區(qū)的地質(zhì)背景，認為在礦區(qū)周邊具有尋找相同成因類型礦床的潛力。
[Abstract]:The Yuanjiatun lead-zinc deposit is located in the southern part of the Xiaoxinganling-Zhangguangcailing iron-copper metallogenic belt. The tectonic location of the deposit lies in the eastern margin of the Xiaoxinganling-Songnen block and the western margin of the Yichun Yanshou geosyncline fold system. This area is an important metallogenic zone of hydrothermal and skarn type deposits. The special tectonic environment and related magmatic activities provide favorable conditions for the formation of copper, lead, zinc and iron polymetallic deposits in the region. The Yuanjiatun lead-zinc deposit is a small deposit discovered and explored in recent years. The Lower Permian Tumenling formation is the main host rock of the polymetallic ore body in the area. The late Yanshanian granodiorite mineralization developed in the area. The orebody occurred in the skarn outer belt formed by the contact metasomatism of marble and granodiorite in the Tumenling formation, and was influenced by the NNW Yuanjiatun fault structure. There are eight lead-zinc industrial orebodies formed in the zone. The ore-hosting sites are skarn in the contact zone and interlayer structural fracture zone in the surrounding rock outside the contact zone. The types of orebodies are vein-impregnated, and the orebodies are composed of two types: skarn in the contact zone and interlayer structural fracture zone in the surrounding rock on the outer side of the contact zone. The main metal minerals are galena, sphalerite, chalcopyrite, pyrite, etc. The genetic type of the deposit is contact metasomatic skarn. It is considered that the strata of the Tumenling formation in the mining area constitute the important geological conditions for lead-zinc mineralization, and the Tumenling formation provides some material sources and an important metallogenic environment for the copper-lead-zinc-iron mineralization. The Yanshanian granodiorite is closely related to the mineralization. The great heat of magmatism is the main energy to cause metal elements to dissolve in the medium and migrate. The structure of contact zone between rock and strata and the structure of interlayer fracture zone in carbonate strata of Tumenling formation constitute the important ore-controlling conditions of copper-lead-zinc-iron mineralization in this area. The shape, scale, occurrence and spatial distribution of the lead-zinc mineralization alteration zone and orebody are controlled. The results of the study on regional metallogenic geological conditions and ore-prospecting markers show that this area has a good potential for further prospecting and a good prospect for finding medium-sized CuPbZn deposits. According to the geological background of the study area, It is considered that there is the potential to look for the same genetic type deposit around the ore area.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.4

【參考文獻】

相關(guān)期刊論文 前10條

1 孫加鵬,張興洲,楊寶俊;張廣才嶺巖石圈結(jié)構(gòu)及盆嶺構(gòu)造[J];長春科技大學(xué)學(xué)報;1999年01期

2 鄧昕;;國外鉛鋅資源概覽[J];世界有色金屬;2008年10期

3 ;Geology and geochemistry of Huanggangliang stratabound skarn deposit in Inner Mongolia,China[J];Global Geology;2010年02期

4 趙一鳴,林文蔚,畢承思,李大新;中國矽卡巖礦床基本地質(zhì)特征[J];中國地質(zhì)科學(xué)院院報;1986年03期

5 周廷貴,周繼強,宋史剛,白仲吾,楊彥;小柳溝銅鎢礦田礦化特征及找礦方向[J];地質(zhì)與勘探;2002年02期

6 張海東;劉建朝;陳正樂;劉淑文;戈小紅;成歡;張雪;;山西平順地區(qū)矽卡巖型鐵礦床地質(zhì)特征及成礦物質(zhì)來源探討[J];地質(zhì)與勘探;2010年04期

7 劉孝善;王聲遠;;華東某矽卡巖型鐵礦床的成礦地質(zhì)特征[J];地質(zhì)論評;1965年04期

8 ;REE Geochemistry of Skarns in the Tongshan Copper Deposit, Guichi, Anhui Province[J];Acta Geologica Sinica(English Edition);1987年01期

9 ;The Coexisting Clinopyroxene-Garnet Acidometer and Acidity Facies of Skarn Deposits[J];Acta Geologica Sinica(English Edition);1990年03期

10 李生全;樺樹溝銅礦床地質(zhì)特征及成因分析[J];地質(zhì)找礦論叢;2003年S1期

本文編號：1622873