| 基于地球化学背景的多图幅系统误差校正——以区域地球化学调查数据Au元素为例 |
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| 关键词:geochemical map systematic error correction geochemical background |
| 基金项目:中国地质调查局成矿带区域地球化学调查示范项目“区域化探方法技术研究与成果集成”(编号: 基[2010]矿评03-03-36) |
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| Multi-map Systematic Error Correction Method Based on Geochemical Background: A Case Study on Gold of Regional Geochemical Survey |
| To eliminate the phenomenon that content contour often circles the subregion in geochemical maps, the authors took the gold geochemical map as an example and used the division standardized method, the contrast deduction and the addition method to revise the systematic error of the regional geochemical data of the Greater Khingan Mountains metallogenic belt obtained by the new method since the geological survey, with a comparative study of the application effects. The result shows that the three methods couldn’t be applied to revising the systematic error between the analytical data of several different sections. According to the data characteristics of the study area, the geochemical background systematic error correction method is put forward based on the data division standardized method and the contrast deduction, and the four methods were compared with each other for their application effects through the data parameters, characteristics and geochemical contour maps. This means can effectively remove the systematic errors in maps-merging, and the revised data can meet the basic assumption that the systematic error in geochemical data belongs to linear error. In practical application, this method can be flexibly used for systematic error correction of chemical data so as to get better effect. |
| DAI Hui-min,ZHAO Jun,YANG Zhong-fang,GONG Chuan-dong,ZHENG Chun-ying,SUN Zhong-ren.2014.Multi-map Systematic Error Correction Method Based on Geochemical Background: A Case Study on Gold of Regional Geochemical Survey[J].Acta Geoscientica Sinica,35(5):648-654. |
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