Discussion on the Method for Extracting Regional Geochemical Anomaly Based on MAPGIS Digital Elevation Model

• 责任者：Chen Xiqing (Yichang Institute of Geology and Mineral Resources ; Yichang 443003 ; China) ; Yang Xiaojun
• 刊名：Acta Geoscientica Sinica
• 出版年：2009
• 卷期：30(1)
• 关键词：地球化学异常 ; geochemical anomaly ; 数字高程模型 ; digital elevation models ; 湖南 ; Hunan Province
• 页码：p.119-125
• 图表：7 illus., 17 refs.
• 分类号：1500
• issnNo：ISSN1006-3021
• isbnNo：CN11-3474/P

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 is 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.