三明市矿化蚀变信息遥感提取及预测矿区选址

Remote Sensing Extraction of Mineralized Alteration Information Based on Crosta Method and Prediction of Site Selection in Sanming City

利用GIS技术,运用Crosta方法的矿化蚀变信息遥感提取,提取铁染蚀变(由波段1、3、4、5四个波段组成)和羟基蚀变(由波段1、4、5、7四个波段组成)的信息,分析三明市的影像数据、三明市的行政边界图并结合各资源环境要素等准则能够预测矿区出现的范围,对相应县区的矿产资源进行验证。应用GIS技术与环评相结合以达到生态环境的优越以及森林资源的可持续发展,给出矿区预测选址或建议。

Using GIS technology,remote sensing extraction of mineralization alteration information by Crosta method was used to extract the information of iron stain alteration(1,3,4,5 by a band consisting of four bands) and hydroxyl alteration(1,4,5,7 by a band consisting of four bands),analyze the image data of sanming city,the administrative boundary map of sanming city,and combined with the criteria of various resources and environmental factors,so as to predict the scope of the mining area,and verify the mineral resources of the corresponding counties. In order to achieve the superior ecological environment and the sustainable development of forest resources,the GIS technology and environmental assessment are combined,and the site selection of the mining area is given or another site selection is suggested.