遥感信息与化探在湘南地区找矿预测中的应用  

The application of remote sensing information and geochemical exploration to Ore-prospecting prognosis in the Xiangnan area

作　　者：朱莉莉[1,2] 洪金益[1] 张金良[2] 张昌俊[2] 张思颖[1] 段宗恩[1] 

机构地区：[1]中南大学地球科学与信息物理学院,长沙410083 [2]有色金属矿产地质调查中心,北京100012

出　　处：《物探化探计算技术》2014年第2期241-246,共6页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：湘南地区是我国重要的有色金属成矿带之一,在该区针对ETM图像采用主成份分析、掩膜等遥感图像处理方法进行遥感蚀变信息提取,并针对该区的水系沉积物,采用迭代法确定地球化学背景值与异常下限,利用MapGIS、Section及DGSS软件提取化探异常信息,研究了该区的地质成矿背景。结合以上两种方法,圈定找矿靶区,为地质勘察工作明确了找矿的方向。The south region of Hunan province is one of the most important nonferrous metal mineralization belts, In this paper , with the help of image processing methods such as principle component analysis and mask, the alteration information related with metal mineralization is directly from ETM remote sensing image. The method of iteration is employed to determine the ge ochemical background of the sediment, with the help of MapGIS, Section and DGSS to extract geochemical anomaly. Study the geological background of the area, combined with the above two methods to delineate ore prospecting targets. It clarifys the prospecting direction for the further geological exploration.

关 键 词：遥感蚀变信息 化探异常 找矿预测 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]