任楼煤矿小断层对瓦斯涌出的控制作用

断裂构造作用对煤层的瓦斯含量及煤层开采时瓦斯的涌出量都会产生影响。通过实际观测统计,分析了皖北任楼煤矿小型断层两侧瓦斯涌出的基本特征。研究表明,断层作用区与煤层瓦斯高涌出量具一致性;断层落差与最大瓦斯涌出区至断层点的距离具极好的相关性;瓦斯异常涌出范围与断层落差之间也呈现良好的线性关系。进一步分析表明,在研究区断层附近的瓦斯涌出量峰值出现的位置以及瓦斯涌出量异常的范围分别约为断层落差的35倍与60倍。      

基于ArcIMS的网络矿产勘探信息系统方案

随着网络的发展,网络矿产勘探信息系统成为矿产勘探信息系统发展的必然趋势。本文采用当前比较流行的WebGIS软件平台ArcIMS对网络矿产勘探信息系统框架的构建进行了探讨,同时给出了相应的系统数据库设计方案和功能模块设计方法。结果表明,该系统具有良好的实用价值和运行效率。      

采用综合物探和钻探方法查明章丘矿山采空区

采空区与围岩具有明显的波阻抗界面,为应用地震反射波法、瞬态面波法及电阻率测深法在采空区的勘测,具备了有利的物理前提和应用条件。通过现场钻探验证,揭示采空区的空间位置,对下步设计工作具有指导意义。     

贵州晴隆矿区K6煤层的元素地球化学特征

运用电离耦合等离子体质谱、X射线荧光光谱、带能谱仪的扫描电镜和逐级化学提取等技术,对贵州西部晴隆矿区晚二叠世K6煤层的元素地球化学特征进行了研究。研究表明,除Cu、S和Fe以外,斑铜矿是造成该煤层中Bi和Pb富集的主要原因。由火山灰、陆源碎屑和有机质组成的特殊“集合体”是引起该煤层中Cr、Cu、F、U和Zr异常的主要因素。     

基于CBERS-02B星数据的矿山开采环境变化动态监测——以德兴铜矿为例

以江西德兴铜矿为试验区,利用CBERS-02B星(辅以02星)CCD数据,对德兴铜矿矿山开采环境进行遥感动态监测与分析,以期为矿山的合理开发、环境监测与可持续发展提供决策分析方法.     

重庆市綦江县矿山地质环境管理工作探讨

针对我国基层矿山地质环境管理中地质环境意识淡薄,管理制度不健全,调查评价、规划、监测等工作滞后,资金短缺等普遍问题存在的问题,提出基层矿山地质环境管理工作的重点是健全管理制度,加强政策引导,加大矿山地质环境治理资金投入,强化矿产资源开发全过程环境保护监督,最大限度地避免对地质环境的破坏。     

Lithostratigraphic and structural controls of ‘tsavorite’ deposits at Lemshuku,Merelani area,Tanzania

The first study of the Lemshuku ‘tsavorite’ mining district is presented. From bottom to top, the lithostratigraphic column corresponds to a metasedimentary sequence composed of quartzite, fine-grained graphitic gneiss, kyanite-graphite gneiss, biotite-almandine gneiss, metasomatized graphitic gneiss and dolomitic marble. ‘Tsavorite’ occurs in quartz veins and rarely as nodular concretions. Two factors control mineralization: (1) lithostratigraphy, with ‘tsavorite’ in association with pyrite and graphite confined to quartz veins within the metasomatized graphitic gneiss; and (2) structure, with the mineralized veins characteristically controlled by tight isoclinal folds associated with shearing.     

基于ArcGIS Engine的矿山地图功能实现

探讨了组件技术在开发矿山地理信息系统中的优势,并在.NET平台下以C#为开发语言,基于ArcGISEngine组件实现了地图浏览功能和要素选择功能。实践证明,应用组件进行MGIS开发,效率高、周期短,效果好,组件技术必将对MGIS开发模式产生深远影响,成为GIS开发的首选技术。     

徐州市矿山地质环境现状分区评估研究

以徐州市矿山地质环境调查资料为基础,选取矿山环境问题的10个负效应评估因子和矿山环境整治成效的3个正效应评估因子,采用综合指数评判法,对徐州市矿山地质环境现状进行分区评估。     

Heterogeneous Fe(II) oxidation and zeta potential

The determination of electrophoretic mobility and zeta potential was used as a diagnostic tool, alongside kinetic experiments, to delineate between three plausible mechanisms for the heterogeneous oxidation of Fe(II) by dissolved oxygen. One of these mechanisms is dependant on the positive surface charge that exists on Fe(III) (oxy)hydroxide surfaces at pH values below the Iso-Electric Point (IEP). However, this mechanism can be disputed as catalysis is observed on Fe(III) (oxy)hydroxide surfaces above the IEP despite a negative zeta potential. As well as an IEP shift an overall reduction of the magnitude of the zeta potential is observed in samples of field Fe(III) (oxy)hydroxide collected from the Taff Merthyr mine water treatment site in South Wales, UK. Low zeta potentials determined in mine water treatment systems will have beneficial effects for particle coagulation and settling in passive mine water treatment systems.