云南大民太铜镍矿床地质、地球化学特征及找矿潜力

对比研究是矿产勘查评价的有效途径之一,结合系统扎实的地质工作和辩证的对比研究思维,通过将云南大民太铜镍矿床与国内成矿条件相似的典型岩浆型Cu-Ni-PGE矿床进行对比研究,分析其地质特征、地球化学特征以及找矿潜力。结果表明:"小岩体成大矿"并非普适性规律,大民太铜镍矿床为岩浆单式侵位就地熔离成矿作用的结果,矿化表征出铜镍硫化物矿床与钒钛磁铁矿床的过渡类型矿床的特点,与香山西复合型矿床具有可对比性,具有一定的找矿潜力。     

四川小金汗牛铜镍铂族硫化物矿床成因初探及找矿前景

汗牛铜镍铂族硫化物矿床产于康滇地轴断裂带上的基性岩体中。通过汗牛矿区成矿地质背景、含矿基性—超基性岩体的岩石地球化学特征及矿床成因的研究,探讨了汗牛地区铜镍铂族硫化物矿床的成因类型,分析了已有工作中的不足,结合优越的地质背景和良好的成矿地质条件,认为汗牛矿区具有良好的找矿前景。     

金川铜镍硫化物矿床成因探讨

通过对金川铜镍硫化物矿床地质特征分析和测试数据分析，从成矿物质来源、成矿作用、成矿过程以及成矿物理、化学条件等几个方面进行了探讨，认为金川铜镍硫化物矿床为-岩浆熔离分结，后经构造-变质热液叠加改造的金属硫化物矿床。     

老挝平然村铜镍硫化物矿床地质特征及找矿前景

老挝平然村铜镍硫化物矿床位于马江-桑怒岛弧成矿带。矿区出露的地层为古生界培哄组变质岩系,岩性主要是绿片岩和绢云母片岩。区域性马江断裂具有切割深度大、多期活动等特征,由该断裂构造运动派生的一系列NW向构造构成了区域性重要的控岩控矿构造,控制了镁铁质—超镁铁质岩体及铜镍硫化物矿体在空间上呈NW向产出。早期的蛇纹岩是矿区铜镍硫化物的唯一成矿母岩。铜镍矿体呈似层状、透镜状及脉状赋存于镁铁-超镁铁质岩体内,与围岩呈渐变或突变接触。在系统阐述区域成矿地质背景、矿床地质特征、矿床成因的基础上,对其对找矿前景进行了初步探索。     

岩浆作用成矿实验室突破传统模式

正镍金属类矿床已进行了半个多世纪的系统勘查,找矿难度空前加大。近日,国土资源部岩浆作用成矿与找矿重点实验室鉴于岩浆铜镍硫化物矿床的特殊性,突破以往按成矿区带评价的模式,首次以矿床类型开展找矿潜力与远景评价研究。据了解,该实验室理清了中国岩浆铜镍硫化物矿床成矿特征,深入探索深部熔离预富集"小岩体成大矿"中国特色成矿理论,与全球重要同类矿集区对比分析,提出中国岩浆铜镍硫化物矿床成矿潜力和找矿远景。     

东昆仑夏日哈木铜镍矿床特征

夏日哈木铜镍矿为东昆仑造山带内首例发现的超大型岩浆熔离型铜镍硫化物矿床,在对矿区地质特征、岩体地质特征、矿体地质特征分析的基础上,对矿石密度与Cu、Ni品位的相关性进行了探讨,为区内进一步开展找矿工作提供参考。     

潘赵庄铜镍矿区构造逐级控制及构造指示矿特征探讨

基于构造逐级控制理论,以褶皱区的区域地质为背景,运用地质构造解析和物化探等工作方法认为,区域构造控制矿区构造,矿区构造反映区域构造。研究区处于构造有利区,岩石化学特征对形成铜镍硫化物矿床较为有利,具备了铜镍硫化物矿床的找矿前提,确定有利靶区受构造控制作用明显,存在于岩体中下部熔离型矿体及岩体边贯入式矿体两处。     

广东某硫铁矿矿山高含铁酸性废水处理

基于构造逐级控制理论,以江苏泗洪县褶皱区的区域地质为背景,运用地质构造解析和物化探等研究矿区构造。结果表明,区域构造控制矿区构造,矿区构造反映区域构造。宿迁市泗洪县潘赵庄铜镍矿区处于构造有利区,岩石化学特征对形成铜镍硫化物矿床较为有利,具备铜镍硫化物矿床的找矿前提,确定有利靶区受构造控制作用明显,存在于岩体中下部熔离型矿体及岩体边贯入式矿体两处。     

关于寻找黄山东铜镍成矿带新的找矿靶区之拙见

西北地区已经成为中国铜镍矿最丰富的成矿地区,这其中有甘肃金川铜镍铂族硫化物矿床,新疆黄山东铜镍成矿带,还有新疆北部发现和探明的岩浆型铜镍硫化物矿床和矿点19处。岩浆型Cu-Ni矿床形成的物质来源在于岩浆中的S达到饱和与亲铜元素结合形成硫化物,进而硫化物熔体从硅酸盐岩浆中熔离出来,在一定的空间内与足够的硅酸盐岩浆混合是亲铜元素品位提高,并保存于合适的空间。     

东昆仑造山带夏日哈木铜镍矿床Ⅱ号岩体地质特征及找矿潜力探讨

夏日哈木铜镍矿是青海省第五地质矿产勘查院在东昆仑造山带发现的首例与基性—超基性岩有关的铜镍硫化物矿床,矿区内的Ⅱ号岩体与Ⅰ号赋矿岩体具有相近的年龄数据,并且具有相似的地质分布特征和地球化学特征,岩体空间形态较为复杂,具有较好的矿化线索,综合分析得出,Ⅱ号岩体具有较大的找矿潜力。     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

唐口煤矿深部复杂开采工作面瓦斯分源涌出规律研究

研究工作面瓦斯涌出规律对工作面瓦斯治理有重要意义。为了得到唐口煤矿深部3号煤层复杂开采条件下工作面回采时期瓦斯涌出时空演化规律,选取6304工作面作为对象,采用实测方法研究6304工作面瓦斯涌出规律。结果表明:6304工作面瓦斯涌出量为6.534 m³/min,其中煤壁占34.27%,落煤占29.62%,采空区占36.11%;沿工作面倾向由低到高,瓦斯浓度整体为上升趋势,其中1—76号架工作面瓦斯浓度小于0.20%,76—102号架瓦斯浓度上升明显,最大为0.387%;上隅角的后部采空区是工作面的瓦斯主要涌出源,上隅角1号测点瓦斯浓度0.78%,上隅角周边3号、5号、7号、8号、9号测点瓦斯浓度平均为0.643%;周期来压时,上隅角瓦斯相对平时较高。研究为针对性的瓦斯分源监控与灾害防治提供基础。