锶矿资源及其应用前景浅析

<正> 一、锶矿资源 (一)含锶矿物已知含锶矿物有20多种,具有工业价值的仅有天青石和菱锶矿。天青石是含SrSO_4为主,菱锶矿是含SrCO_3为主的矿物。目前,世界开采的锶矿都是由上述两种矿物为主组成的锶矿床,其中天青石矿床又是主要     

合川天青石矿床成矿地球化学及形成机理

四川合川天青石矿床位于合川县盐井镇之西2km处。矿床赋存在三迭纪含盐岩系中,矿体产在下三迭统嘉陵江组内,是我国重要的锶矿产地,共有五个主矿体,十个次要矿体,九个溶蚀残留矿体。矿体的厚度变化系数为49～90％,品位变化系数为57～65％;矿石组构虽然复杂,但其矿物组成比较简单,有用矿物主要为天青石。各类矿石的化学成分比较一致,主要组分SrO:37～50％,SO_3:29～39％。通过对矿石物质成分、矿化特征、稳定同位素分析,研究和总结了成矿控制、形成机理和成矿地球化学作用。认为本矿床应届沉积——改造类型的天青石矿床。     

刚果(金)KIMPE铜钴矿床地质特征及成因分析

结合区域成矿地质背景,以KIMPE铜钴矿地质勘查成果资料为依据,对矿区地层、构造、矿体特征、矿石特征等进行了论述,并对矿床成因进行了分析。结果表明,KIMPE铜钴矿矿床受地层和断裂控制,新元古代加丹加系罗安群地层为初始矿源层。成岩成矿期后,卢菲利造山运动过程中的构造活动和变质作用对矿床进行了改造,使成矿元素发生活化、迁移和重新富集。此外近地表环境下的表生富集作用,导致了表生矿体的形成。KIMPE铜钴矿矿床成因类型属于沉积—热液改造型。     

刚果(金)SICOMINES铜钴矿床地质特征及成因探讨

刚果(金)SICOMINES铜钴矿处于非洲著名的赞比亚—刚果(金)铜钴成矿带西端,是一个铜金属量达千万吨的特大型铜钴矿床。结合区域成矿地质背景,以SICOMINES铜钴矿地质勘查成果资料为依据,对矿区地层、构造、矿体特征、矿石特征等进行了论述,并对矿床成因进行了探讨。结果表明,SICOMINES铜钴矿床受层位控制,新元古代Katanga(加丹加)系Roan(罗安)群为初始矿源层。卢菲利(Lufilian)造山运动(距今560～550Ma)过程中的构造活动和变质作用对矿床进行了改造,使矿化叠加和局部富集;此外近地表环境下的表生富集作用,导致了表生矿体的形成。该矿床成因类型属于沉积—改造型层状矿床。     

喀什三角洲地下水锶元素的分布特征及其来源

分析表明,研究区及周边地区地下水在水平方向上,潜水和承压水的锶含量呈现出沿河流流程的增加而呈现逐渐增大的趋势,在垂直方向上,潜水和承压水的锶含量呈现出随着钻孔深度的增加而逐渐减小的趋势。锶含量受到了来源于西天山区、昆仑山区的天青石(SrSO4)和菱锶矿(SrCO3)等水—岩作用的影响,富集过程反映了锶的年代累积效应。研究成果可为喀什三角洲地区的发展与规划及对地下水资源的开发利用提供一定的水文地质依据。     

内蒙古阿拉善右旗特拜金矿矿床成因及找矿标志

特拜金矿位于朱扎拉嘎-甲生盘成矿带上,成矿地质条件优越。结合区内地质工作,对研究区内成矿地质背景、矿区地质特征、矿床地质特征等进行了综合分析,厘定了矿床的成因类型,并对研究区内的找矿标志进行了详细地探讨,研究表明:(1)该矿床为岩浆后期热液充填交代蚀变岩性金矿;(2)研究区内发现的矿体主要赋存于绢云母千枚岩中;(3)矿体主要赋存于大型构造破碎带及其次级断裂交汇处;(4)矿床围岩蚀变具有明显的分带性,近矿蚀变主要以黄铁矿化、毒砂化、硅化为主,远矿蚀变主要为绿泥石化、碳酸盐化、高岭土化。     

西南某沉积-改造型低品位锶资源选矿试验研究

西南某沉积-改造型某低品位锶矿主要含锶矿物为天青石和菱锶矿,主要脉石矿物为白云石、石英、方解石和水云母。根据目的矿物和脉石矿物可浮性的差异,以GSA药剂抑制硅酸盐和碳酸盐矿物,烷基硫酸盐回收天青石和菱锶矿经一次粗选四次精选,开路试验获得了原矿SrSO436.19%,精矿品位SrSO466.00%,回收率65.07%的指标。目的回收矿物与脉石矿物间密度差异较大,理论上也可采用摇床重选回收含锶矿物。将原矿碎至0.8mm以下,经摇床一次粗选一次扫选,试验取得了理想的指标:原矿品位SrSO436.15%,精矿品位SrSO478.15%,回收率80.90%。本试验研究为该锶矿石的开发利用提供一种技术可行、投资少、便于操作、绿色环保的工艺技术。     

毛坪铅锌矿床地层-岩性-岩相古地理控矿特征

毛坪铅锌矿为一大型铅锌矿,其矿体赋存于泥盆系、石炭系地层内。从矿区地层、岩性、岩相古地理3个方面的控矿特征,进行深入研究与分析,结果表明:(1)毛坪铅锌矿床是在地层、岩性、岩相古地理的特殊组合下形成的大型铅锌矿床;(2)地层控矿表现为多层位含矿、主矿体集中、有沉积韵律现象、矿体受地层厚度影响明显等特征;(3)地层岩性影响矿体成矿规模;(4)岩相古地理为铅锌矿的富集提供了较好成矿的环境。研究成果可为下一步找矿提供指导。     

贵州省织金县新麦铅锌矿床地质特征及找矿潜力

贵州省织金县新麦铅锌矿床位于贵州省五指山铅锌矿田区内。对该矿区地质特征、矿体特征、矿床成因进行了分析,研究表明:(1)矿区内铅锌矿床的赋矿地层主要为震旦系灯影组和寒武系清虚洞组,矿区主要分布有NE、NEE、NW向等断层,NE向断层为控矿和导矿断层,NW向断层为导矿和容矿构造;(2)矿区内铅锌矿与MVT型铅锌矿相似,主成矿期为印支—燕山期,在构造、岩性耦合的情况下,含Pb、Zn的成矿流体与赋矿地层中的富硫低温流体发生混合作用,在断层或断层旁侧的有利空间内形成矿体;(3)区内铅锌矿床成因为沉积初始富集成矿+改造成矿矿床。在上述分析的基础上,进一步圈定了大垭口重点工作区、雨活庄工作区、白泥坡—陶家洞工作区、冷坝工作区、喻家坝工作区以及核桃冲工作区,并对各区的找矿潜力进行了分析。     

个旧卡房成矿区断裂构造控矿模式及找矿方向

结合个旧卡房成矿区地质工作成果,在分析成矿区地质特征的基础上,对该区断裂构造成因机理、断裂构造控矿特征进行了讨论,并结合实例对区内断裂构造控矿模式进行了分析。研究表明:(1)卡房成矿区成矿作用特点鲜明,老熊硐断裂以北成矿主要集中于地表以下,在卡房段地层的层间破碎带内主要产出以锡、铜为主的矿体,矿床规模相对较小;老熊硐断裂与龙树脚断裂之间自地表往下均有成矿,主要产出层状铅、锡矿体,矿床规模相对较大;龙树脚断裂及其周围的次级断裂中主要产出锡、铅、银矿体,其中锡、铅矿体规模相对较小;(2)成矿区的断裂构造形成主要是由地区构造应力、风等自然作用力等因素耦合作用所致;(3)区内矿体类型主要有层间矿体、断裂带矿体、花岗岩接触带矿体及花岗岩蚀变带矿体;(4)断裂与地层(互层)交切处、断裂转折端处、断裂交汇锐角挟持带及断裂扎根处为成矿区矿体赋存的有利部位;(5)成矿区断裂构造的控矿模式为多元-时空耦合控矿模式。在上述分析的基础上,进一步分析认为卡房成矿区深部(地表以下500~1 500 m)隐伏矿体分布区为该区地质工作的主攻方向,并划分出黄泥硐断裂挟持带生勘区(Ⅰ~#区)、蒙子庙断裂构造透镜体生勘区(Ⅱ~#区)、老熊硐断裂构造透镜体详查区(Ⅲ~#区)、仙人硐断裂分支复合普查区(Ⅳ~#区)、龙树脚断裂转折端详查区(Ⅴ~#区)为该区较有潜力的找矿靶区。     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel     

Brief news

正Corun invested another 50 million yuan in power battery for HEV Hunan Corun announced on 27 June that they had signed the cooperation agreement to jointly built Corun(Shaoxing)Autos Power Battery System Co.,Ltd.in Shaoxing Binhai New City.According to the announcement,total registered     

铜熔炼中锍品位对杂质元素分配行为的影响

借助于多相、多成分系统中平衡计算的手段，开发出微量元素砷、锑、铋及伴生元素铅、锌等在铜熔炼中分配行为的计算机模型。利用该模型对铜熔炼过程进行计算机模拟，分析了冰铜品位对砷、锑、铋、铅和锌等杂质元素的分压、活度系数及它们在冰铜、炉渣和气相中分配率的影响，并讨论其热力学分析结果对生产实践的指导意义。     

China rare earth market review

正November 1~10,2014Chinese rare earth market was still inactive.Demand for rare earth products was weak.Consumers took a wait-and-see attitude for lower price.As it was an off season for rare earth products,it was expected that prices of rare earth could continue turbulence at the bottom in short terms.Due to a sharp drop,demand for rare earth from downstream recovered.Affected by new energy vehicles,wind powder and energy-efficient appliances,production of rare earth permanent     

China rare earth market review

正August 1~10,2014 There was some good news in rare earth industry recently.Restructuring plans of rare earth groups led by Baotou IronSteel Group and Xiamen Tungsten Group respectively have been approved by MIIT.And rare earth storage policy,which had been expected for a very long time,has been launched officially.Pushed by the good news,rare earth price started to rebound since August 5.Price of didymium oxide and dysprosium oxide rose about 1% to 2%,averagely.About 10% of     

China rare earth market review

正July 1~10,2014Due to weak demand from downstream industry and slow transactions,rare earth market remained weak and price of rare earth products continued to decline.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,