山东省扎实开展地质找矿改革发展大讨论活动

国土资源部地质找矿改革发展大讨论工作安排部署后,山东省国土资源厅党组十分重视,召开专门会议研究,4月15日制定印发了大讨论工作方案,成立了大讨论活动领导办公室,下发了开展大讨论活动通知,要求全省国土资源管理部门、地勘部门、地勘单位、矿山企业、科研部门、学会协会要将大讨论与本单位当前主要工作相结合,     

符号动力系统(∑(Z~+),σ)的若干性质

讨论了符号动力系统上的几乎周期点、回归点及非游荡点,还讨论了它的一些其他动力性质。     

坚持“以入为本”强化对入民群众负责的思想

省委组织开展的解放思想大讨论已进行了近一个半月了,在这段时间里,除了参加厅组织的学习活动外,站党支部也组织了站内党员干部展开了解放思想大讨论活动。通过学习和讨论从思想收益匪浅,下面汇报一下个人学习的一点认识和体会。     

"大讨论"中拓宽新视野——核工业地质"从找铀开始向多领域地质找矿突破

辽宁省核工业地质局对"地质找矿改革发展大讨论"活动十分重视,4月15日专门召开了局务会议,成立了以局长胡忠义为组长的"大讨论"领导小组.4月22日,召开了"辽宁省核工业地质局地质找矿改革发展大讨论活动动员大会",会上公布了"大讨论"的实施方案.目前,各项活动正在按照方案稳步推进之中.     

国土资源厅开展解放思想大讨论活动

7月3日上午,青海省国土资源厅系统召开解放思想大讨论活动动员大会,传达了省委十一届四次全会精神,对全系统解放思想大讨论进行了安排部署。     

坚持“以人为本”强化对人民群众负责的思想

省委组织开展的解放思想大讨论已进行了近一个半月了,在这段时间里,除了参加厅组织的学习活动外,站党支部也组织了站内党员干部展开了解放思想大讨论活动.     

西安地裂灾害问题数据本构分析

运用数据本构分析方法定量讨论了影响西安地裂成因问题,对各种致裂因素所起的作用进行了定量的描述。并分析讨论了西安地裂的控制发展规模。     

解放思想破难题赶超跨越谋发展——广西国土资源厅召开“解放思想,赶超跨越”大讨论活动动员大会

为全面贯彻落实广西壮族自治区第十次党代会关于在全区广泛开展"解放思想,赶超跨越"大讨论的重大部署,3月2日,广西国土资源厅在南宁召开全区国土资源系统"解放思想,赶超跨越"大讨论活动动员视频大会. 广西国土资源厅党组历来高度重视解放思想,近年来,按照广西壮族自治区党委的部署,相继在全区国土资源系统组织开展了解放思想再讨论、继续解放思想大讨论等一系列活动,有力地推进了国土资源管理部门的思想大解放,特别是在改革创新方面取得很大进展.     

GPS-RTK与全站仪相结合在物探测量中的应用

文中讨论了GPS与全站仪的原理、特点和方法，并根据物探测量中的生产情况讨论了两者的有机结合，对遇到的实际问题提出了有益的见解，有较高的实用价值。     

从可持续发展的物质体系谈辽宁省的矿业与环境

从矿业资源、环境与生态的平衡关系出发,讨论了矿业资源领域在社会经济发展中的极其重要的基础地位;从矿产资源的不可再生性等特点讨论了矿业资源的可持续发展对全社会经济可持续发展战略实施的决定性作用; 从矿产资源开发、利用的现状已对环境产生的危害和正在产生的危害,讨论了矿业可持续发展的必要性、紧迫性和艰巨性。通过对辽宁省矿产资源的特点、矿业开发利用的现状及其矿业环境的分析, 讨论了矿业开发利用与矿山环境保护之间内在的、不可分割性和影响因素,并在此基础上提出了建议。     

基于DEM提取坡谱信息的不确定性

坡谱是黄土高原地学分析新方法、新思路的探索。本文基于坡谱不确定性的概念及其过程分布模型的论述,以陕北黄土高原国家1∶10000和1∶50000DEM数据为基本信息源,分析了坡谱不确定性的产生原因、主要影响因素与影响规律,阐述了坡谱提取与应用中应注意的主要问题,为正确应用坡谱进行地学分析提供重要依据。     

State and Development： Changes in Livelihood Strategies in Garhwal with Special Reference to Ecotourism in the Gangotri Region

The object of the paper is to provide an insight into the changes in livelihood strategies of the people in the Garhwal Himalayas over time. From sustaining an economy based on transit trade and subsistence agriculture, there has been a shift towards tourism in recent times. This shift has been due to the tradition of pilgrimage to the higher reaches and also due to promotion by the state by developing infrastructure and providing incentives. The paper is divided into four parts. In the first part, the policies of the colonial state and the events leading to the destruction of forests and the impoverishment of the self-sustaining semi-pastoral economy in the Garhwal Himalayas are outlined. It is argued that the destruction of forests and subsequently, the economy of the Himalayas were directly responsible for the large-scale migration to the plains. This also led to further exploitation of forests by the people who were unfamiliar with any other form of livelihood. The paper also discusses the policies of the newly independent Indian state and sees them as an extension of the British policy of large-scale exploitation of Himalayan forests for the purpose of development and economic growth. In the third section, the growth of ecotourism as a direct outcome of the orocess of deforestation and as resulting from the need of society to conserve and yet to earn a livelihood is discussed. The case study of the Gangotrir egion examines the dilemma faced by the people of Garhwal in sustaining their livelihood, income or the development in the area. In addition, tourism has fostered monopolies of groups external to the region thereby contributing neither to the income or the development in the area. In addition, there is an added threat to the environment-deforestation, and erosion-a direct outcome of increased and unplanned tourism. Such problems demand state intervention and management of t.ourism. The conclusion to the paper asserts that in order that the requirements of the society to progress and to sustain itself in its natural habitat are not compromised, it is essential to increase the process of democratization by strengthening local structures and by vesting the community with the autonomy to determine its future. The paper therefore argues that ecotourism in the Himalayas undertaken without local involvement is not desirable. The constant need for local monitoring of external agencies or even of the State‘s participation and the need for re-evaluation of environmental standards are cumbersome details that add to the costs of promoting low-impact tourism. To be viable, ecotourism should be community based and the needs of the community, their ideas of conservation should be given prime importance and local community must be encouraged to review the standards governing conservation. Local structures should thus receive patronage and promotion, so that ecotourism becomes a dynamic facet of economic development.     

浙江长兴顾渚山优质紫笋茶与地质背景相关性分析

长兴水口顾渚山风景区的紫笋茶,是闻名国内外的优质名茶。本文在实地调查的基础上,分析了紫笋茶优异的品质与地质环境背景条件的相关性。特定的地质背景条件,首先造就了一个避风向阳、雨量充沛的小气候环境;特定的泥盆系与花岗岩类浸入岩的地层背景所形成的土壤,为茶树生长提供了大量的营养物质,特别是有益的微量元素对提高茶叶品质起到了重要作用;同时这一特定的背景条件下,形成了对茶树生长有利的酸性土壤。特定的水文地质背景条件．又提供了充足的水份,还补充了茶树生长所必需的营养物质。通过对环境背景条件的分析,最终提出了长兴县茶叶发展的方向。     

试论企业实行加速折旧

当前许多生产企业的生产设备已非常陈旧 ,然而这些企业却不愿更新 ,原因之一就是因为在大多数企业只被允许采用直线法等一般的折旧方法对固定资产进行计提折旧 ,使得企业在固定资产方面的投资收回较慢 ,大大限制了企业在固定资产方面投资的积极性。针对这一现状 ,文章从“实行加速折旧不会减少国家财政收入”入手 ,论述了实行加速折旧的可行性 ,从 3个方面论述了实行加速折旧的必要性。认为扩大加速折旧企业的范围已切实可行。     

EFFECTS OF COMPOSITION AND STRUCTURE OF ALGINATES ON ADSORPTION OF DIVALENT METALS

Results of a series of experiments(on the adsorption of divalent metal ions by dried alginic acid, Na and Ca alginates of different composition and block structure) conducted in this systematic study of the effects of the composition and structure of alginates on the static adsorption equilibrium of divalent metal ions indicate that the properties of alginate adsorption to divalent metal ions are highly different, depending not only on the cations used, but also on the form and structure of the alginates. There is close correlation between the adsorption properties and the structure of the alginates. The selectivity coefficient of Na alginate for Cd-Sr ion exchange tends to increase with the increase of the M/G ratio in alginate, whereas the adsorption capacity of Ca alginate for Cu~(2+) ion decrease with the increase of the G-block or the average length of the G-block ((?)_G) and the total adsorption capacity of alginic acid is found to vary in the same order as the F_(MM)(diad frequency) in alginate in     

以节点为中心的关系边聚类与可视化算法

对象间的关联关系可视化主要是通过图的连边进行表达的,但是对象间的关联关系纷繁复杂,大量的连边交错会造成严重的视觉混乱,图布局和边捆绑都是解决复杂连边造成的视觉混乱问题的有效途径,然而某些节点的地理位置具有实际的含义,只能通过边捆绑方法来减少幅面载负量,进而揭示图的潜在关联规律。以往的边捆绑算法是在边的两端节点固定的前提下,调整边的中间控制点的位置,这样会使得大量边被聚集在一起,不仅会造成二次视觉混乱,且难以在节点级别揭示图的关联趋势。针对这一问题,本文提出了一种以节点为中心的关系边聚类与可视化算法。首先使用方向聚类算法实现隶属于同一个节点的连边的聚类,本文提出的方向聚类方法速度约是K-means算法的13倍,约是DBSCAN算法的6倍,然后对各个连边实现控制点的内插,在此基础上使用FR模型使得控制点位移,并通过弯曲度控制防止“过度弯曲”情况的出现,最后调整边的透明度,使得可视化的结果突出显示边靠近端点处的部分。实验结果表明,本文NCEB算法的幅面载负量L和中点距离变化量△d的约为FDEB算法的二分之一,证明本文算法可以将捆绑位置从边的中间部位移动到节点端,不仅解决了传统边捆绑算法造成的二次视觉混乱问题,而且使得节点周围的连边分布趋势清晰可读,且视觉负载大大降低,有效减少了视觉误差和信息误判。     

Gold and tin of fluid-magmatic systems： causes of combination-separation of concentration elements

The aim of the investigation is to reveal possible causes of isolation and co-occurrence of the economically significant concentrations of gold and tin. Comparative analysis of the different-rank factors that influenced migration and concentration of these elements show that different geochemical properties of Au and Sn are responsible for isolation of their big concentrations giving rise to independent metallogenic provinces, zones, and ore nodes. These differences resulted in individualization of the element migration ways to the level of ore concentration within the fluid-magmatic columns. Three main factors influenced the Au and Sn migration activity: different patterns of metal connection with the melt structure, different relation with oxygen, and different relation with other strong oxidizers. By the moment when ore-bearing fluid became isolated from magmas, the metallogenic signature of the melts, contrasting in redox-potential, had already been defined that was confirmed by the fact that tin ores associate predominantly with the granitoids of ilmenite series and gold ores with those of magnetite series. The fluid-magmatic systemswith an intermediate degree of the melt reduction-oxidation may be considered the potential producers of the combined metal concentrations. In these cases, the combined concentrating of tin and gold is plagued by an opposite direction of the oxidation-reduction reactions when their most common minerals are formed: the main migration form of Sn+2 must be oxidized (with cassiterite portioning) , and the forms of Au+ or Au+3 must be reduced (with native gold portioning) . Probably, because of this the combined tin and gold concentrations are dominated by one of the metals with a tendency of accumulation in different-stage mineral complexes.     

小岩体成大矿与岩浆通道成矿理论的比较

从小岩体成大矿和岩浆通道成矿理论的提出、发展、完善及其主要成矿控制因素展开探讨,结合典型矿床实例,指出这两种理论在勘查实践中的贡献和应用价值,并比较其异同点。小岩体成大矿与岩浆通道成矿理论的主要区别在于:小岩体成大矿理论中岩浆管道与岩浆通道成矿理论并非同一概念;深部熔离预富集是前者的主要控制因素;前者是硫化物深部熔离-脉冲式贯入占主导,而后者是硫化物就地熔离-局部聚集为主;在硫化物熔离机制方面,后者要求外来硫的加入是必需条件,而前者认为外来硫的加入并非不可或缺,在岩浆深部就可以发生硫化物不混溶作用;在成矿物质聚集方式上,后者认为含矿岩浆分凝和上侵是连续过程,而前者则强调岩(矿)浆上侵是脉动式过程。在找矿实践过程中要重视小岩体,并注重含矿小岩体的下盘和岩浆上升的管道位置,这些地区是扩大区域找矿前景、增加资源储量最具潜力的部位。     

基于DEM的黄土高原地形纹理概念模型

黄土高原"千沟万壑"的地貌形态,在多尺度空间下表现出显著自相似性,具有"局部无规则,宏观有规律"的纹理特征.目前,黄土高原地形纹理的提取方法及应用已经得到初步发展,但依然缺乏在理论层面的框架体系.本文在已有学者研究成果的基础上,限定黄土高原为研究范围,明确提出黄土高原地形纹理的概念模型,即内涵、特征、分类及表达.将内涵...