山西省汾西县秋堰铝土矿区水工环地质特征分析

山西省汾西县秋堰铝土矿项目矿区的水文地质条件为二类一型,即矿区铝土矿床为以裂隙含水层充水为主、水文地质条件简单的矿床。综合开采技术条件为中等的矿床(Ⅱ类4型),即该矿区属矿床水文地质、工程地质、环境地质条件三因素中两项以上属中等的矿床,其余属简单的矿床,具有良好的开发前景。     

老鸦岔金矿矿区地质特征及矿床开采技术条件研究

为增加矿山金矿资源,延长矿山开采年限,研究了老鸦岔金矿矿区地质特征及矿床开采技术条件,分析了矿区地层、构造、侵入岩、围岩蚀变等地质特征;研究了5条矿脉的位置、产状、长度、厚度、含矿率等特征;分析了7个矿体的赋存标高、埋深、产状、平均厚度、品位等特征,并对其矿石质量特征、 矿石类型和品级、矿体（层）围岩及夹石、矿区内共（伴）生矿产情况等进行了研究;研究了矿床开采技术条件,主要包括水文地质、岩石的物理性质、矿体及顶底板围岩的稳定性、环境地质,得出矿床水文地质、工程地质条件属简单类型,环境地质条件中等,矿床开采技术条件为Ⅱ-3类。研究为后续勘查阶段或未来矿山开发利用打下了良好基础。     

石桥石榴子石矿床水文地质工程地质特征

通过对石桥地区的水文地质、工程地质及环境地质的分析,指出了石桥石榴子石矿的开采地质条件,分别为矿床水文地质条件属简单类型,矿床工程地质条件属简单类型,矿床环境地质条件为环境质量简单型。     

代县高台庄铁矿矿区地质特征及矿床开采技术条件研究

研究了山西省代县高台庄铁矿矿区地质特征，勘查区内出露地层有太古界五台超群台怀群、下元古界滹沱超群豆村群和第四系，区内地质构造特征是受区域构造所控制，四集庄组地层出露的岩浆岩规模较大，测区主要呈现3个带状正异常，异常带形态较明显，规模较大，其绿泥片岩夹磁铁石英岩为重要的矿体产出部位。研究了矿床开采技术条件，主要为水文地质、工程地质和环境地质，得出，矿床主要含水层富水性弱，水文地质条件属简单，属二类一型；矿体及顶底板、围岩属坚硬—半坚硬岩石，岩体质量等级属中等—岩体完整；矿床开采可能会造成一定的地质环境影响，但危害不大，矿床开采技术条件属简单，矿床勘查类型为Ⅱ类。研究为后面矿产的开采提供了技术支持。     

皱庄煤矿82采区工程地质条件分析

对邹庄煤矿82采区钻孔揭露的主采7、8煤层顶底板岩性特征、岩石物理力学性质、岩体类型、岩石的RQD值、基岩风化带特征进行了评价,主采煤层顶底板是以碎屑岩组为主的坚硬～半坚硬层状岩类矿床。主采煤层顶板类型以软质岩体为主;底板岩体为中等完整,少数较完整,岩体质量等级中等～良(Ⅲ～Ⅱ类),大多为Ⅲ类。局部地段易发生矿山工程地质问题,采区工程地质勘查类型可划分为层状碎屑岩类,中等型,即三类二型。通过采区工程地质条件的分析,为本采区主采煤层安全开采及巷道支护与管理提供了可靠依据。     

利用罗克休材料充填处理607风巷空洞

本矿井开采的煤层为上二迭统乐平煤系下老山段B4煤层,煤层结构简单,赋存比较稳定,煤的破坏类型为Ⅱ-Ⅲ类,经检验为Ⅱ级自燃煤层,其煤层自然发火期为1~3个月。煤层自燃倾向性为自燃~容易自燃。     

陕北典型风沙滩地区浅层地下水动态特征及对煤炭开采响应分析

以地下水长期监测数据为基础,综合分析榆林市榆阳区萨拉乌苏组潜水区域水位动态的时空发育特征,运用模糊聚类分析法将研究区的浅层地下水划分为3个动态类型:水位强烈波动区(Ⅰ类)、水位中等波动区(Ⅱ类)、水位弱波动区(Ⅲ类)。研究不同动态类型区水位变化规律以及主要影响因素,开展地下水位动态与煤炭开采量、大气降水量的相关性分析,认为:Ⅰ类区水位动态主要受大气降水影响,水位动态变化较大;Ⅱ类、Ⅲ类区水位动态受大气降和煤炭开采的综合影响,水位动态变化较弱。在现有开采条件下,研究区区域地下水动态的主要影响因素是大气降水,其次是煤矿开采。     

花岗岩矿矿床地质特征及开采技术条件分析

研究了河南省南召县田家庄饰面用花岗岩矿的矿床地质特征及开采技术条件,分析了矿区地层、构造、岩浆岩、覆盖层及风化层地质特征,研究了矿体特征、矿石质量及其特征、断裂及节理和裂隙分布发育特征、矿石类型和品级、矿体围岩及夹石、矿床成因及找矿标志等矿床地质特征。通过水文地质、工程地质、环境地质调查工作,基本查明了矿区的水文地质、工程地质和环境地质条件,区内岩石类型简单,矿体及围岩主要为黑云母二长花岗岩,岩体呈块状结构,地质构造简单,不会形成岩体滑动,矿体与围岩工程地质条件稳定,不易发生矿山工程地质问题,工程地质条件为第二类简单型。矿石和废石不易分解出有害组分,但在矿山开采时会对原有地形地貌造成破坏,存在一定的不良地质灾害隐患。矿区地表附近无污染源,无放射性异常,环境地质条件中等。研究可作为矿山建设的依据。     

内蒙古奈曼旗青龙山水泥用石灰岩矿山露天开采技术条件浅析

综述了内蒙古奈曼旗青龙山水泥用石灰岩矿的开采技术条件,从矿区水文地质条件、工程地质条件、环境地质条件进行分析说明,并划分了其工程地质勘探类型。通过综合分析论证,最终确定了矿山开采技术条件为以简单水文地质问题为主的矿床,即Ⅲ-1型。     

内蒙古上碧流台矿区铅锌矿矿体地质特征及矿床开采技术条件研究

分析了矿区地质，主要研究了地层、侵入岩、构造和矿区地球物理特征。基于此，分析了矿区矿体地质特征，通过对矿床类型、成矿条件、控矿因素的分析研究，认为本区矿床属于中低温火山热液型脉状铅锌矿床。根据北西向构造延伸特征，结合本区矿脉分布规律及勘探经验，在矿区的西、南面开展找矿工作，前景可期。研究了矿床开采技术条件，得出矿区开采技术条件类型为以水文地质、工程地质、环境地质复合问题为主、开采技术条件中等的矿床，即Ⅱ-4型。研究为矿山综合开发、充分利用矿产资源提供了可靠依据。     

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,     

New energy vehicle:an opportunity for rare earth magnets

<正>Extracted from Securities Guide 1.Popularity of new energy vehicles—an irresistible market trend1.1 Progress of new energy vehicles Chinese Premier Li Keqiang said recently on a visit to Xi'an BYD Autos that new energy vehicles,especially new energy bus,can lessen environment and noise pollution.He encouraged the use of new     

注浆加固技术在十三矿-685 m进风大巷中的应用

针对煤矿开采深度不断向深部延伸,掘进巷道受深部高应力的影响越来越大,巷道围岩整体稳定性差,矿山压力显现越剧烈现象,一般锚网喷加锚索支护无法从根本上控制巷道的变形。总结了平煤股份十三矿-685 m进风大巷注浆加固技术,依据对巷道掘进之后变形监测数据的采集,对巷道变形机理进行分析研究,并对注浆时段进行了合理选择,在对巷道的注浆工艺进行了充分论证的基础上,对巷道进行了注浆。注浆后效果表明:巷道滞后注浆时间段的选择非常重要,巷道在恰当的时间内进行注浆加固施工,能有效控制巷道的变形,巷道注浆后变形量明显减小,岩体的稳定性明显增强,减少了巷道日常维修工作,降低了矿井的生产成本,保障了矿井的安全生产。     

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