Application Analysis Study Of Remote Sensing Information Extraction Of Alteration And Structure In Xinjiang Hami Tudun

With rapiding development of remote sensing technology and information processing technology,remote sensing information has qualified as an independent geological parameters,and has been more and more accepted by geological work.It can provide the area macro data in a short time,show the ground landscape from visual clarity images,reflect a large geological information of surface and subsurface,but also through which receive the underground concealed geological bodies,concealed structures control and the impact of the ground anomaly information,to indirect the identification of concealed geological characteristics,as a result give the effective supplement to geophysics,geochemistry,drilling and exploration method,to some extent,make up for the shortcomings of the exploration of the methods,so is widely used in geological field.In order to more enhance the application standard of the remote sensing technology in mineral resources exploration and evaluation in China,and put forward rational demonstration data suggestion for transformation of the geological exploration remote sensing system indirectly,so as to better improve the system.This topic develop the remote sensing geology comprehensive evaluation application research to gold,copper mineral resource in the east tianshan mountain hami tudun areas.That is to say use the multiple source data of hyperspectral remote sensing,and fully combine with other remote sensing data sources and geophysical and geochemical exploration data,from the extraction of ore-controlling structure,and ore mineral information to comprehensive evaluation of mineral combination information and to metallogenic prediction at last.Obtain the main achievements and understanding as following:1?Proceeded the pretreatment for space-borne hyperspectral Hyperion data and spectrum ETM data,so as to better carry out the extraction of remote sensing information,and get the higher quality more effective Hyperion and ETM data through the data pretreatment at last;2?Based on the pretreatmented data of ETM,carried out the information extraction work of geological structure to study area.On the basis of familiar with and combination with regional geological material,by means of use setting up interpreting marks and image information enhancement and the ingredients transform(PCA)?spatial filtering?false color synthesis method and so on,and extract to a certain amount of east-west and north east structures;3?Based on the pretreatmented data of ETM,Hyperion and HyMap,carried out the information extraction work of mineral alteration.On the basis of simple analysis combined spectrum identification of mineral portfolio,first by use principal component analysis method and the ratio to ETM data,and extract mineral of sulfate and hydroxyl and carbonate aqueous compounds;Next by adopt the endmember extraction,the spectrum analysis and relevant mapping technology to Hyperion and HyMap simulation data,and extract the montmorillonite,serpentine,illite,calcite,white mica and chlorite minerals and so on;4?At last make a analysis and research systematacially of the mineralization vision zone based on the above results and regional geophysical,geochemical and the relevant geological materials.And compily the figure of the regional vision zone forecast.