Research On The Extraction Of Anomalies Related With Mineralization:a Case Study On Iron Mine Zone In Hejing, Xinjing Province, China

This paper studied the methods of linear structure automatic extraction on the multispectral remote sensing images and anomaly alteration information extraction of mineralization. The study depended on the research topic of weak information extraction mechanism and application for the mineral exploration of coverage area, and selected Hejing County in Xinjiang province as the study area. In this area, iron ore resources are rich and the mineralization information of preliminary field investigation is very apparent. Through the full collection of geological background and the detailed analysis of the predecessor researched results, the paper presented a method for linear structure automatic extraction on the multispectral remote sensing images, and applied the method to the linear structure extraction of the study area. It is a meaningful attempt. This paper not only used a variety of alteration extraction method to extract the anomaly information of remote sensing alteration in the study area, analyzed and compared information extraction results, but also introduced the thought of geochemical anomalies nonlinear extraction to extract of the study area's anomaly information of alteration. The study enriched alteration information extracting method of mineralization. In addition, the paper summed up a process of extracting alteration information, which is suitable for extracting remote sensing anomalies related to mineralization information in the study area. The main work of this thesis is as follows:(1) Analyzing the interpretation of linear structure signs and studying its basic characteristics in remote sensing images.(2) According to the basic characteristics of the linear structures in remote sensing image, highlighting and extracting linear structure area through preprocessing the data.(3) Studying the methods of linear information extraction in remote sensing image, and then further researching the automatic extraction method of linear structures.(4) Studying a variety of methods of extracting alteration information and then analyzing their results of extracting alteration information, finally summarizing the reasons of different results.(5) Introducing fractal technology and the thought of nonlinear extracting geochemical anomalies to extracting alteration information of the study area.(6) Through researching and analyzing various methods extracting results, summing up a process of extracting alteration information, which is suitable for extracting remote sensing anomalies related to mineralization information in the study area.