基于地质背景分析的区域化探数据系统误差校正  

The Systemic Error Correction of Regional Geochemical Mapping Data Based on Geological Background Analysis

作　　者：周永恒[1] 李守义[1] 张璟[1] 徐山[1] 

机构地区：[1]吉林大学地球科学学院,长春130061

出　　处：《吉林大学学报（地球科学版）》2011年第3期753-758,共6页Journal of Jilin University：Earth Science Edition

基　　金：中国地质调查局项目(1212010881611)

摘　　要：在区域化探数据系统误差校正工作中,为使校正的结果更符合实际地质情况,在分析了地质背景与地球化学数据之间关系的基础上,认为同一地质背景条件下相同地质体的化探数据来源于同一总体,具有相同的数据特征,提出了一种依据地质背景分析的误差校正方法,探讨了该方法的基本原理及工作步骤。以辽宁省3幅1/20万区域化探Ag元素图幅拼接为例,证实了该方法消除系统误差的有效性,并有利于图件的解释与应用。In order to ensure the systemic error correction of regional geochemical data more according with to the geological reality,the relationship between geologocal background and regional geochemical data is studied.The conclusion has been drawn that regional geochemical data of congeneric geologic bodies in uniform geologic background originated from the common population and have similar characteristics.The method of the systemic error correction of regional geochemical mapping data based on geological background analysis is proposed.The basic principle and method processing of the method are also suggested.The application of the method to map-serging of three Ag element regional geochemical maps of 1∶200 000 confirms that the systemic error correction is available and favorable to both interpretation and application of regional geochemical maps.

关 键 词：图幅拼接 系统误差 数据校正 地质背景 

分 类 号：P628.1[天文地球—地质矿产勘探]