MAPGIS与DGSS软件在湘南化探数据处理中的应用  

THE APPLICATION OF MAPGIS AND DGSS IN GEOCHEMICAL DATA PROCESSING IN THE SOUTHERN HUNAN

作　　者：朱莉莉[1,2] 洪金益[1] 张金良[2] 张昌俊[2] 何亮柱[1] 

机构地区：[1]中南大学地球科学与信息物理学院,湖南长沙410083 [2]有色金属矿产地质调查中心,北京100012

出　　处：《物探化探计算技术》2013年第4期490-494,374,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国地质调查局发展研究中心(1212011120434)

摘　　要：区域化探数据处理对于化探找矿影响重大。湘南素有我国"有色金属之乡"的美誉,在湘南地区1:50000水系沉积物地球化学找矿中,利用MAPGIS软件结合Excel表格,可快速完成地球化学采样点位图、实际材料图;同时结合数字地质调查信息综合平台(DGSS)软件,采用"迭代法"计算背景值和标准偏差,进而求得异常下限,以DGSS软件为平台绘制出元素地球化学图、单元素异常图及综合异常图。与传统化探制图方法相比,MAPGIS与DGSS在处理数据及成图时均显示出其高超性能,耗时少、精度高、实用性强,在地质工作领域中,应用前景广阔。The processing of regional geochemical data is important for geochemical prospecting.The southern part of Hunan is Known as 'home of non-ferrous metals' in China.The geochemical sampling point map can be quickly completed by MAPGIS combined with Excel.Using Digital Geological Survey information System(DGSS) software,the background value and standard deviation can be easily calculated,the regional threshold can be obtained by iterative method and then the element geochemical maps,single-element anomaly maps and comprehensive anomaly maps can be drew automatically by DGSS.DGSS is a very easy,practical and efficient software to process geochemical data.

关 键 词：MAPGIS DGSS 化探数据处理 

分 类 号：P632[天文地球—地质矿产勘探]