| The porphyry copper mine is the most important industrial type of copper deposits, It has some advantages: the large scale; ore is easily found in open-air; So most countries and the mineral departments think much of it because of its big economic values and the important strategic status .When series of large-scale, ultra-large porphyry copper mine had been found, It inspired people to know the porphyry copper mine. Because Xinjiang stand among some small landmass , like Siberia, Kazakhstan - Zungar, Talimu, and artai, AErTai,BaErKeShi-YiLi,SaiErMu,Tu-Ha ,and so on, Xinjiang Has the super geological condition to form the large-scale porphyry copper mine(molybdenum gold), And hopefully becomes the new strategic resources in our country.The paper mainly researched the porphyry copper mineral belt in the north area of Xinjiang .By using the superiority of"information prospecting strategy";by the direct prospecting information as the forerunner; by the large-scale, the ultra-large ores as the mainly prospecting object, it discovered some effective methods about how to quickly select porphyry copper mineral prospecting area on basis of remote sensing technology under different geographical environments. First, though analysis generally the geological background and the condition of mineralization porphyry copper mineralization, and by image data statistical analysis and ore spectrum characteristic research , the paper built altering remote sensing information extracting model . Then the altering remote sensing information about metal miner can be extracted by the multi-spectrum remote sensing information extracted technology in different geographical environments . The paper had initially formed the effective technical method combination of the remote sensing prospecting localization forecast , which could be used in some kinds of natural landscape , for example: the wilderness Gobi area in the north of Xinjiang, the low mountainous area or high cold mountainous area . The main achievements of this paper are as follows:1.The main porphyry copper mineral belt is formed by the geological process of transformation between the structure extrusion to open under the background of the edge of moving field in Xinjiang. There are many porphyry mineral deposits which formed under the condition of the edge rift valley environment in the northern Zungar and the western of Tianshan area, So does that in the border neighbouring area of the central Asia. When developing the exploration and research of porphyry deposits in Xinjiang, we should emancipate our minds, and pay more attention to the critical change about the geological structure environment and margin (arc) rift environment.2.The paper analyzed the remote sensing image features about the ore-controlling elements of porphyry copper mine. And from the points of view about perspective of geology and physics , it discussed the mineralization conditions of porphyry copper mine and the spectral characteristics research of rock, altered wall rock, altered ore. This is an important precondition and theoretic basis to extract remote sensing ore-controlling information. At the same time, by field-portable spectrum measurement instrument (PIMA, ASD), I collected the spectrums of typical deposits, for example: rock, ore, altered rocks. And it was summarized the mineral combinations of feature alteration about the porphyry copper mine in some place: chlorite,illite,Elohist,dolomite,calcite are in wilderness Gobi area of eastern Tian mountain; potassic feldspar,biotite,epidote,chlorite,calcite,sericite are in northern region of ZhunGeEr. All of those built a solid foundation for the extraction of remote sensing ore-controlling information.3. Based on some technical methods: multiple geological statistical analysis, features principal component analysis, spectral angle, etc. we can directly extract the altered information about porphyry mineralization from the ETM multi-spectral data. The paper discussed the best combinational method by using"Deleted interfere abnormal principal component threshold technology "in wilderness Gobi area, to show us how to extract altered remote sensing abnormal information of porphyry copper mine; The paper also showed us how to quickly identify abnormal altered remote sensing information by the method of "knowledge discovery + hierarchical", and realized integration between geology and remote sensing data which were based on the remote sensing platform.4.To be the main research area of porphyry copper mine belt in western Tianshan Mountains–YuXiMuoLeGai, the paper, based on the background of regional mineralization geology and image statistical analysis, advised that we should mainly extracted structure information, and though some ideas: spectral buildup, spatial transformation and introduced DEC data, built regional three-dimensional remote sensing images ; built the direct and indirect explaining signs in this region ; Then , discussed the best methods of mineralization prospective areas in high-cold mountain.5.Through the knowledge of the mineralization progress in research region; the geological and physical study about the extracting principle of remote sensing ore-controlling information of porphyry copper mine; and the comparative study about the different extracting methods of the ore-controlling remote sensing information in landscape area , I think that the research of remote sensing prospecting Localization should based on metallogenic principle(It is the basis of remote sensing Interpretation); the spectrum test of ores (altered rock)should be precondition(It is the basis of the altered information extraction). When image processing, it is necessary to consider the interference of geographical environment, and flexibility use image processing technology; When information extraction processing, it is necessary to continue to add the known geological knowledge to reduce abnormal interference; And to use some suitable combinational methods in the different landscape areas to translate ore-controlling elements and extract altered information.6.The paper showed the next step about how to find the ore from the main porphyry copper mineral belt in northern Xinjiang. There are some good mineralization conditions of porphyry copper mine in some places: the west-northern region of copper mineral belt in HaLaShu-KaLaXianGeEr, AoErTaHaLaShu, what`s more, it is the specially important prospecting direction where is the bordering Lot between the west-northern region of XiLeKeTeHaLaShu and YuLeKenHaLaShu. The deep ore prospecting of porphyry copper ore in Pine Ditch-YuXiMuoLeGai should be concerned. Let`s take porphyry copper mineral belt in Pine Ditch-YuXiMuoLeGaDaBan for example: the depth of fracture-alteration zone Cu (Au) mineralization ,which we are exploring, is less than 1 km , That is to say, the uplift erosion depth is limited, and the parts of mineralization alteration, which was exposed from the earth, is likely to be upper or porphyry mineralization peripheral vein mineralization. The direction of prospecting target region of porphyry copper ore in ChiHu-LianMu is between the eastern region of porphyry copper molybdenum ore in ChiHu to gold ore in Red Beach and in TianMu, this region is in the eastern direction of porphyry copper ore of TuWu, and thire structure conditions are similar .
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