MAPGIS在遥感解译中的应用

MAPGIS是国内优秀的、集GIS功能与遥感图像处理功能于一体的软件平台。本文简要介绍了其专业图像处理子系统的基本功能，并根据笔者工作体会，总结出利用该软件开展遥感解译、制作数字化专题图的工作流程。     

地幔动力学与板块俯冲

通过地幔粘滞性及粘滞结构、地幔热状态、地幔热生成三个方面，探讨了地幔物质发生对流的物理背景，并归纳出地幔对流模式热动力系统，在此基础上剖柏了地幔对流和现代板块构造的直接联系。     

致密碎屑岩储层裂缝和产能的横向预测—以XZ气田沙溪庙组为例

本文以XZ气田沙溪庙组致密碎屑岩储层为例，介绍在单井建模的基础上，应用灰色遗传过程识别方法，利用三维地震资料进行工区裂缝和产能横向预测的过程。特别是关于地震特征参数的提取过程、工区产能和裂缝的预测结果，对其他地区的同类研究将具有指导意义。     

黔东南地区金矿遥感弱信息自动提取技术研究

笔者以TM多光谱遥感数据为数据源,利用MPH矿化弱信息定量化提取技术,在植被土被覆盖严重、地质条件复杂的黔东南地区进行金矿遥感找矿试验研究,获得了良好的效果。本文主要介绍使用MPH技术的参数和方法流程及其处理的结果。     

河南省秋季寒潮的平均环流特征分析

普查1990～2003年河南寒潮资料，筛选出发生在11月上旬的全省性寒潮天气过程，对过程发生前5～10天的候图进行位势高度梯度分析及合成分析，从梯度场和合成图中找出秋季寒潮爆发前5～10天的特征。     

Deep seismic reflection profiling revealing the complex crustal structure of the Tongling ore district

Deep seismic reflection profiling has been the dominant method for probing the deep structure of continental crust since the initiation of the COCORP in 1974[1,2]. Over the past few decades, this tool has been applied to diverse geologic features from the Appalachian area of the United States, to the Rhine-graben area in Western Europe and to the Tibetan Pla-teau[36]. In recent years, the Australian Geodynamic Cooperative Research Center ( AGCRC ) has applied this technique to the stu…     

广东省各地市耕地面积统计偏差分析

深入分析耕地面积详查数据与统计数据的来源和计量单位口径以数据覆盖范围,建立了详查口径耕地面积与统计口径耕地面积的关系方程。根据1996年详查耕地面积计算了广东省21个地市实际的统计口径耕地面积,并与各地上报的1996年统计耕地面积比较。结果表明,人为夸大或虚报耕地面积情况主要出现的珠江三角洲经济区内,大多数山区地市这一迹象并不明显。     

瞬变电磁系统探测海底电导率的研究

选择在海洋工程与环境地质等方面有应用前景的海洋瞬变电磁法作为研究对象．研究了在高导海水中探测海底电导率的电磁感应理论,研制了共轴水平磁偶极-偶极装置（HRHR）的瞬变探测系统和解释软件．经东海海域实地试验,取得了良好效果,证实了瞬变电磁探测的有效性和方法优势．目前,它可作为海底地质填图的主要手段．经拓展后可用于海底分层和基底深度的探测．     

格尔木冲洪积扇地下水水化学异常及其成因

格尔木冲洪积扇地下水含有丰富的锶，地下水的水化学分带异于一般的冲洪积扇地下水水化学分带性规律。通过室内水－岩模拟试验以及野外监测，证明地下水及山区沉积物的物质不是基岩就地风化的产物。通过对区域地球化学背景及物质搬运的动力来源分析，指出风力作用是形成本区地下水水化学异常的控制因素，化学组分源于柴达木盆地西北部含盐地层及盐湖盐类晶粒。     

Distribution and formation of high-fluorine groundwater in China

In China, high-fluorine groundwater, which contains more than 1.0 mg/l fluorine, is mainly distributed in shallow aquifers of unconsolidated deposits in some arid and semiarid areas, deep aquifers of unconsolidated deposits in semiarid areas, as well as in hot springs of bed rock mountainous area and aquifers of fluorite-mine area. Its formation is controlled by regional climate factors, seepage conditions of groundwater, as well as the hydrogeochemical environment. The physicochemical properties of soil mass of the aeration zone play an important role in fluorine concentration in shallow groundwater. In the coastal plain areas, where groundwater is mainly recharged and discharged vertically, and its regime type belongs to the type of infiltration—evaporation, the grain size of soil mass of aeration zone directly influences the amount of fluorine transferred from solid medium into water; and the chemical constituents of the soil mass of aeration zone controls the chemical characteristics of the shallow groundwater, consequently influencing the concentration condition of fluorine in water. Fluorine ion in groundwater continuously migrates and concentrates under the comprehensive influence of many factors. High-fluorine groundwater exceeding the sanitary standard (1.0 mg/l) has an obvious zonality in regional distribution in China. Based on current statistics, there are roughly 50 million people (Zheng Qifu 1986) who have consumed water which exceeds standards in China. In highfluorine groundwater areas, endemic fluorine-poisoning often arises to different extents, affecting human health seriously. At the end of 1983, over 20 million patients were suffering from fluorine-poisoning diseases in China (Xu Guozhang, unpublished data). Therefore, research of the distribution feature and formation mechanism of fluorine ion in groundwater has become an important task.