基于体素模型的三维显示技术

针对矿产资源勘探数据的特点,研究了适合地质体信息三维可视化的体绘制模型和空间插值算法。基于IDL软件平台,开发了三维数据可视化软件;该软件能够快速、准确地将地质体的物性特征展示出来。最后,以内蒙古某金属矿床钻孔资料为例,对建立的三维可视化方法技术进行了应用检验,取得了较好的应用效果。     

西部煤炭资源调查评价中遥感技术的应用

通过西部煤炭资源勘查对遥感技术的需求以及煤田地质体的可解译性、遥感技术的实际应用效果分析,论述了西部煤炭资源调查评价中遥感技术的重要作用,提出了今后遥感技术的应用建议.     

聊城市水资源现状分析与对策

根据聊城市近几年的地表水及地下水的水质监测资料,对水资源现状进行了分析,并对主要污染物进行了评价,提出了如何解决存在问题的措施与建议.     

四川扎如沟旅游资源开发初探

扎如沟是九寨沟的一条支流，位于九寨沟东北角偏北方向，它以其丰富的自然和人文资源，良好的区位优势，成为九寨沟下一步最具有开发价值的区域。详细阐述了扎如沟现有的资源优势，提出了统一规划，分步实施，突出特色，突出主题，实施品牌战略，开发与保护并重的资源开发总体思路，并给出了一系列切实可行的旅游产品设计方案。     

从地质遥感迈向国土资源普查

概略回顾了中国20世纪遥感地质的辉煌成就,列举4项重大突破:极块构造的论证与线性形迹分析,数字地质与找矿、第四纪地质与地貌学的新发现、工程地质选线与选址。指出21世纪面对国土普查的新任务,需要加强遥感信息机理研究,信息融合与共享,学科交叉,社会经济统计空间分析的能力,关注探月计划与遥感制图。     

Low-low satellite-to-satellite tracking: a comparison between analytical linear orbit perturbation theory and numerical integration

Low-low satellite-to-satellite tracking (ll-SST) range-rate observations have been predicted by two methods: one based on a linear perturbation theory in combination with the Hill equations, and one based on solving the equations of motion of two low-flying satellites by numerical integration. The two methods produce almost equivalent Fourier spectra of the range-rate observations after properly taking into account a few resonant terms. For a typical GRACE-type configuration, where the two satellites trail each other at a distance of 300 km at an altitude of 460 km, and in the presence of the EGM96 gravity field model, complete to spherical harmonic degree and order 70, the agreement between the Fourier spectra is about 1 mm/s compared to a root-mean-square (RMS) value of more than 220 mm/s for the range-rate signal. The discrepancy of 1 mm/s can be reduced significantly when not taking into account perturbations caused by the J₂ term. Excluding the J₂ term, the agreement between the two methods improves to 0.4 mm/s compared to a RMS value of 6 mm/s for the range-rate signal. These values are 0.01 and 2.3 mm/s when ignoring the spectrum for frequencies below two cycles per orbital revolution, reducing the discrepancy even further to about 0.5% of the signal. The selected linear perturbation theory is thus capable of modeling gravity field induced range-rate observations with very high precision for a large part of the spectrum.     

矿产勘查与评估的统计地球化学方法

统计地球化学在矿产勘查与评估中的应用，主要包括采术规则，临界品位计算，资源量／储量公式，边界品位确定，网度判别，矿床经济分类以及矿床开发风险等内容。     

月球某些资源的开发利用前景

21世纪月球探测的主要趋势是建立月球基地，开发利用月球的矿产资源，能源和特殊环境，为人类社会的可持续发展发挥长期而有效的支撑作用，通过对月海玄武岩中的钛铁矿，克里普岩中的U，Th,REE和月壤中的拟－3在月面的含量与分布的系统分析，月海玄武碉中蕴藏有极丰富的钛铁矿，TiO2总资源量超过70万亿t，钛铁矿还是月球基地生产水和火箭燃料的主要原料；克里普岩是未来月球探测与研究的热点之一，其蕴藏有巨量的铀，钍，钾，磷和稀土元素资源；月壤长期受到太阳风的辐射，使其蕴藏有极其丰富的氢，氦，氧，氮等气体资源，其中氦－3的资源量大于100万t，它是一种可供人类社会长期使用的，安全，清洁，高效，廉价的核聚变发电燃料，其含量与月壤的化学成分，矿物组分，颗粒大小等有密切的关系。     

我国铝土矿资源合理开发利用的探讨

分析我国铝土矿开发利用的现状以及存在的问题 ,指出我国铝土矿的特点是多为一水硬铝石型矿石 (占 98.4 6 % ) ,且是高铝高硅低铁 ,用其生产氧化铝成本高 ,矿石开采难度大。探讨今后合理开发利用铝土矿的途径     

An Agricultural Land Resource Assessment Study Based on GIS—An Example from Guiyang City

This paper assesses the agricultural land resources of Guiyang City by means of GIS,on the basis of the pressure-state-response model in which soil heavy metal contamination is selected as a pressure indicatror.he results suggest that most of the agricultural land resources are of good quality,However,there are 17.11km^2 dry land and paddy field,which belong to the region of serious heavy metal contamination and are not fit for planting crops.At the same time,the high quality plowland,which is suitable for cultivation,has decreased nearly by 1/3 due to soil heavy metal contamination.These findings may improve our understanding that it is very important to prevent and cure heavy metal contamination of Guiyang City.