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GIS空间分析在区域地质多源信息综合分析中 ,具有十分重要的作用。作者在本文中介绍了 GIS空间的分析特征及应用于区域地质找矿的两种方法 ,即统计分析和叠加分析。结合兰坪盆地的区域地质特征 ,作者选取了遥感线性体密度异常、频度异常、遥感环形影像异常、地球化学异常、地球物理异常、地质异常及已知矿 (点 )床的分布等七种控矿因素作为多源成矿预测的空间信息数据源。在此基础上 ,利用了 GIS的空间分析功能进行多源信息的综合分析 ,预测出三级成矿有利的区域
GIS spatial analysis in the regional geological multi-source comprehensive analysis of information has a very important role. In this paper, the author introduces the analysis features of GIS space and two methods applied to regional geological prospecting, namely, statistical analysis and overlay analysis. Combining with the regional geologic characteristics of Lanping basin, the authors selected seven kinds of linear body density anomalies, frequency anomalies, remote sensing annular image anomalies, geochemical anomalies, geophysical anomalies, geological anomalies and the distribution of known ore beds Ore-controlling Factors as Spatial Information Data Source for Multi-source Metallogenic Prediction. On this basis, the comprehensive analysis of multi-source information is made by using the spatial analysis function of GIS to predict the favorable region of tertiary metallogenesis