【摘要】 在区域矿产资源评价中,地球化学找矿信息为成矿分析提供了成矿作用的直接信息。GIS为化探数据分析提供了非常好的数据库管理功能、提供了化探数据处理的数字化产品及制图功能及提供了数据挖掘的形象化图示可视化功能。GGCAS(GIS-Based Regional Geochemical Data ProcessingSystem)将GIS功能无缝地与化探数据处理结合起来的地球化学异常信息分析系统。它包括地球化学异常确定的基本方法、多变量异常相关分析、地球化学异常空间趋势结构地质统计分析,也包括面金属量、累乘组合异常的计算。系统实现了所算及所得,使得地球化学科学计算、GIS效据库管理、图形可视一体化。运用该系对全国环境地球化学数据进行分析。更多还原

【Abstract】 In order to assess mineral resource,it is necessary to study a lot of geochemical data.Recently the geographical information system (GIS) as a good spatial data analysis tool has been widely used in the geochemical data study all over the world.GIS can supply us many useful functions such as the management of geochemical data,mapping of geochemical anomalies and visualizing of geochemical data mining process.GGCAS(GIS-Based Regional Geochemical Data Processing System)try to combine traditional geochemical data processing with GIS in order to construct a friendly visual geochemical data processing system.更多还原