三山岛金矿床流体包裹体研究

三山岛金矿床位于胶东西北部,属于典型的"焦家式"(破碎带蚀变岩型)金矿床。对矿区内主成矿阶段石英中的流体包裹体进行了岩相学、显微测温、氢氧同位素及单个包裹体成分激光拉曼光谱研究。研究表明,矿石中流体包裹体主要有纯CO2单相包裹体、气液二相包裹体和含CO2三相包裹体3种类型;矿石石英中流体包裹体普遍富含CO2;成矿过程中,流体经历了CO2-Na Cl-H2O体系的不混溶作用;成矿流体具有低盐度(3.85%~11.60%)、低密度(0.70~0.96 g/cm3)的特点;主成矿温度集中为260~320℃,成矿压力范围为70~110 MPa,相应(成矿)深度范围为6.78~8.69 km。结合流体包裹体氢氧同位素分析认为,三山岛金矿床成矿流体以地幔流体为主,并有少量的岩浆流体。确定矿床成因类型为为幔源流体参与成矿的中温热液脉型金矿床。     

山东栖霞马家窑金矿床流体包裹体研究

马家窑金矿床位于华北板块东缘胶北隆起区,栖霞—蓬莱成矿带上。赋矿围岩为新太古代的片麻状中细粒含角闪黑云英云闪长岩,矿体受马家窑—上庄头断裂构造的NW向次级断裂构造控制。主要对区内Ⅱ号脉中Ⅱ-1号矿体主成矿阶段的流体包裹体进行岩相学、显微测温和单个包裹体激光拉曼分析。结果表明:矿石中的包裹体类型是以气液二相包裹体和含CO_2三相包裹体为主,CO_2包裹体和单液相包裹体为次的4种类型,矿石中的包裹体普遍富含CO_2,成矿流体为CO_2-NaCl-H_2O体系;盐度为2%~10%,密度为0.54~0.94 g/cm~3,具有低盐度和低密度的特点。成矿温度集中在280~340℃,成矿压力范围为68~124 MPa,成矿深度为6.67~9.26 km。结合流体包裹体氢氧同位素分析以为,马家窑金矿床的成矿流体主要是幔源流体,后期有少量岩浆流体的参与。综合研究表明,马家窑金矿床成因类型为中高温热液脉型金矿床。     

吉林夹皮沟地区金矿床流体包裹体特征差异及其地质意义

通过对夹皮沟地区下戏台、小北沟金矿床流体包裹体研究。发现两矿床矿石石英中发育的流体包裹体特征存在明显差异。在下戏台金矿床矿石石英中发育CO2包裹体,含CO2三相、气液两相及单液相包裹体等4种类型的原生包裹体。各类包裹体均一温度为218．2℃．429．8℃。盐度为4．2％-10．8％。成矿流体为不混溶NaCl-H20-C02热液体系类型;而小北沟金矿床石英中主要发育气液两相及单液相包裹体。包裹体均一温度为143．5℃。272．2℃,盐度为3．3％。9．6％。成矿流体属NaCI-H2O热液类型。由包裹体所反映的两矿床成矿流体特征差异,表明其来源不同。这进一步证实了前人提出的该区存在两种类型矿床的认识。     

小塔子沟金矿床1号脉流体包裹体特征研究

小塔子沟金矿床属于典型的含金石英脉型矿床,其中1号脉是该矿区具代表性的矿脉之一。对小塔子沟金矿床1号脉矿石中的流体包裹体进行了岩相学、显微测温及单个包裹体成分激光拉曼光谱研究。结果表明：矿石中发育CO2包裹体、含CO2三相包裹体和水溶液包裹体等3种类型;成矿过程中,流体经历了NaCl-H2O-CO2体系的不混溶作用;各类包裹体均一温度260～400℃,含CO2包裹体盐度为0.21%～2.42%（NaCl）,气液二相包裹体盐度为5.26%～8.14%（NaCl）,成矿压力68～108 MPa,成矿深度6.67～8.61 km。综合分析认为小塔子沟金矿床为中温深成热液金矿床。     

山东海阳土堆金矿床成矿流体包裹体研究

山东海阳土堆金矿床位于中生代胶莱盆地的东北部边缘,牟平—即墨金成矿带内,控矿构造为郭城断裂及其派生的一系列次级断裂,赋矿围岩为荆山群的灰白色大理岩和变粒岩,到目前为止共圈定出34个工业矿体。对矿区内主成矿阶段矿石石英中的流体包裹体进行了岩相学观测、显微测温以及单个包裹体激光拉曼光谱成分分析。研究结果表明,流体包裹体类型主要为气液二相包裹体、纯CO_2包裹体和含CO_2三相包裹体,同时发育少量单液相包裹体。成矿流体具有中—低盐度(5.59%~13.77%)、低密度(0.60~0.98 g/cm~3)的特点,成矿温度为280~320℃,成矿压力为80~109 MPa;成矿深度为7.30~8.65 km。激光拉曼光谱分析显示,流体包裹体中以普遍富含CO_2为特征,成矿流体为CO_2-Na Cl-H_2O体系。结合氢氧同位素分析结果,认为土堆金矿床为幔源流体参与成矿的中温热液脉型金矿床。     

山东金岭埠南金矿床流体包裹体特征及成因探讨

埠南金矿床位于胶莱胶北断隆北缘,招(远)—莱(州)成矿带中部,受NE向灵山沟—北截主断裂以及一系列次级构造控制。金矿体赋存于NE向构造中,并受其控制,矿石类型以蚀变岩型为主。通过对埠南金矿床不同成矿阶段的流体包裹体进行岩相学、显微测温、单个包裹体激光拉曼分析,结果表明:石英中流体包裹体主要有Ⅰ型气液二相包裹体和Ⅱ型含CO2三相包裹体,成矿流体均一温度为280~320℃,盐度为3.76%~12.99%;流体为Na Cl-H2O-CO2体系,含少量的CH4和N2。通过等容相交法,得出包裹体捕获压力为54~106 MPa,并估算出成矿深度介于5.87~8.52 km。流体H、O同位素特征表明,成矿流体以地幔流体为主,同时存在岩浆水和大气降水的参与。综合分析认为,埠南金矿床属于蚀变岩型中成造山型金矿床。     

胶莱盆地东北缘郭城金矿床成矿流体特征及矿床成因

郭城金矿床位于胶莱盆地东北缘,由土堆矿段、沙旺矿段、东刘家矿段、龙口矿段和后夼矿段等组成,受以郭城断裂为主的拆离构造体系控制。矿石中石英流体包裹体岩相学、显微测温等研究结果显示,流体包裹体分为气液两相包裹体、含CO₂三相包裹体和纯液相包裹体3种类型;成矿流体盐度为1.39%～16.53%,密度0.56～1.00 g/cm³,属于中低盐度、低密度流体;成矿温度为200℃～360℃,成矿流体压力60～125 MPa,成矿深度6.22～9.31 km。结合前人研究成果,认为郭城金矿床成因类型是受郭城断裂为主拆离构造体系控制、地幔流体参与成矿的中温热液脉型金矿床。     

吉林磐石粗榆金矿床流体包裹体特征及矿床成因

粗榆金矿床大地构造位置位于华北克拉通北缘东段,主要容矿围岩为花岗岩、石英闪长岩及花岗闪长岩;控、容矿构造以区内NW向断裂为主。重点对不同阶段石英流体包裹体进行了包裹体岩相学、显微测温学和激光拉曼显微探针研究。成矿流体包裹体可分为气液二相包裹体和含CO2包裹体。气液二相包裹体成矿流体盐度为1.73%~11.23%,密度0.71~0.88 g/cm3,均一温度为233.1~304.4℃;含CO2包裹体成矿流体盐度为7.64%~10.87%,密度0.54~0.92 g/cm3,均一温度为268.9~340.4℃。激光拉曼光谱分析表明,流体气相成分主要为CO2和H2O。稳定同位素研究结果表明,矿床成矿热液来源为幔源C-H-O流体分异之后的岩浆热液。通过等容线图解法估算成矿压力为95~135 MPa,成矿深度为8.02~9.69 km。结合粗榆金矿床的地质特征,认为粗榆金矿床的成矿类型为中成造山型金矿床。     

黔东同古金矿床成矿流体地球化学探讨

黔东同古金矿床产于元古界下江群浅变质岩系中,矿体严格受构造控制,矿体划分为层间脉型、破碎带型和网脉型3种类型,矿石贫硫化物。通过对同古金矿床流体包裹体的成分、氢氧同位素及包裹体CO2的碳同位素特征研究分析,认为同古金矿床主成矿阶段的成矿流体是以大气降水为主的富含CO2的弱酸、弱还原混合地热流体。     

吉林延边刺猬沟金矿床流体包裹体特征及矿床成因研究

刺猬沟金矿床的大地构造位置处于兴蒙造山带东段的汪清火山岩盆地内,矿体赋存于安山岩一安山质火山角砾岩层中,受区域性断裂、破火山口内放射状断裂系统控制。流体包裹体的研究表明,主成矿期的流体包裹体均一温度为230．8～265．6℃,盐度为6％～9％,属于较低温、低盐度流体。氢氧同位素分析表明,刺猬沟金矿床成矿流体为大气降水和岩浆水混合流体。综合研究刺猬沟金矿床矿石特征、围岩蚀变特征、流体特征和同位素特征等,确定刺猬沟金矿床属于低硫化型浅成低温热液型金矿床。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.