| 应用MAPGIS数字高程模型提取区域地球化学异常信息的方法探讨 |
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| 引用本文： | 陈希清,杨晓君,陈富文,高立宝.应用MAPGIS数字高程模型提取区域地球化学异常信息的方法探讨[J].地球学报,2009,30(1):119-125. |
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| 作者姓名： | 陈希清 杨晓君 陈富文 高立宝 |
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| 作者单位： | 宜昌地质矿产研究所，湖北宜昌 443003;宜昌地质矿产研究所，湖北宜昌 443003;宜昌地质矿产研究所，湖北宜昌 443003;中国核工业地质局203研究所，陕西咸阳 712000 |
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| 基金项目： | 中国地质调查局战略性矿产资源远景调查项目(编号：矿调[2005]14-4号) |
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| 摘 要： | 区域地球化学异常信息提取方法较多，各种方法的原理及适用条件不同。笔者详细介绍了应用MAPGIS数字高程模型提取区域地球化学异常信息的方法。该方法具有异常圈定前不需对原始数据作过多预处理，圈定时可不考虑地质背景划分、地球化学景观的不同，不受工作区研究程度及研究人员专业影响，方法适应性强，简单、快速，并能客观反映矿化情况，较好地体现地球化学元素的空间变化，对地球化学分区研究和指导找矿具有重要意义。
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| 关 键 词： | 区域化探 异常信息提取 MAPGIS 数字高程模型 地球物化勘查 |
A Discussion on the Method for Extracting Regional Geochemical Anomaly Based on MAPGIS Digital Elevation Model |
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| CHEN Xi-qing,YANG Xiao-jun,CHEN Fu-wen and GAO Li-bao.A Discussion on the Method for Extracting Regional Geochemical Anomaly Based on MAPGIS Digital Elevation Model[J].Acta Geoscientia Sinica,2009,30(1):119-125. |
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| Authors: | CHEN Xi-qing YANG Xiao-jun CHEN Fu-wen and GAO Li-bao |
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| Institution: | Yichang Institute of Geology and Mineral Resoures, Yichang, Hubei 443003;Yichang Institute of Geology and Mineral Resoures, Yichang, Hubei 443003;Yichang Institute of Geology and Mineral Resoures, Yichang, Hubei 443003;Research Institute No.203 Bureau of geology, CNNC, Xianyang, Shanxi 712000 |
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| Abstract: | There are many methods for extracting regional geochemical anomalies, and each method has its principle and applicable conditions. This paper deals with the extraction method based on MAPGIS digital elevation model, which needs not complex preprocessing before delineating anomalies and takes no account of geological background, geochemical landscape, research extent and profession of researchers. This method in characterized by strong adaptability, suppleness and speediness, and can objectively reflect regional mineralization features and spatial changes of geochemical elements, thus having great significance in regional geochemical study and prospecting for ore resources. |
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| Keywords: | regional geochemical survey extraction of anomaly information MAPGIS digital elevation model geophysical and geochemical exploration |
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