基于遥感的福建紫金山地区矿化蚀变信息提取与分析  

Extraction and Analysis of Mineralization Alteration Information Based on Remote Sensing in Zijin Mountain Area of Fujian

作　　者：李琳[1] 陈松林[2] 修晓龙 LI Lin;CHEN Song-lin;XIU Xiao-long(Fujian ChuanZheng Communications College,Fuzhou 350007,China;School of Geographical Sciences,Fujian Normal University,Fuzhou 350007,China;Fujian Geological Surveying and Mapping Institute,Fuzhou 350011,China)

机构地区：[1]福建船政交通职业学院道路工程系,福建福州350007 [2]福建师范大学地理科学学院,福建福州350007 [3]福建省地质测绘院,福建福州350011

出　　处：《福建师范大学学报（自然科学版）》2019年第1期37-45,共9页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省科技重点项目(2007H0003)

摘　　要：以福建省紫金山地区为研究区,以ETM与SPOT、SAR遥感数据为数据源,通过主成分分析、波段比值、线性增强、阈值分割、滤波分析等方法,分析研究区的地质构造特征,研究其矿化蚀变分布情况,提取该地区重要成矿区域的矿化蚀变信息.运用多源数据叠加技术,建立紫金山矿区铜、金的找矿标志,并对照已知矿床的地质、物化探特征及矿化蚀变信息,优选出9个有利找矿地段和区域,为进一步地质找矿工作提供了重要的参考依据.Combining with existing exploration data and taking Fujian Zijin mountain as the study area,based on ETMSPOT and SAR remote sensing data,mineralization alteration information in the important metallogenic area was extracted and geological structure characteristics were analyzed and alteration distribution was studied by applying the methods as principal component analysis,band ratio,linear enhancement,threshold segmentation,filter analysis and so on. Taking GIS technology to integrate the geological data of the study area,the remote sensing interpretation map,and the mineralization alteration map were. Prospecting targets were optimized by comparing the geological,geophysical and geochemical characteristics and mineralization alteration information,researching variety techniques and methods of remote sensing image processing,using remote sensing interpretation. The prospecting mark of copper and gold in the study area was established,further selecting the 9 best ore prospecting areas and regions,providing an important reference for the next step of geological prospecting.

关 键 词：遥感找矿 矿化蚀变 信息提取 紫金山 

分 类 号：P237[天文地球—摄影测量与遥感]