The Geochemical information is a kind of Micro-mineralized outcrop, it can provide directly information for mineral exploration to improve the efficiency of prospecting. The research area is located in the territory of West Kunlun region of Tibet, and location of Geotectonic belong to the convergence zone of South Kunlun Block, Karakoram Block, Hoh Xil Block and North Chang Tang Block. Because of the complex geological background, many geochemical anomalies of Copper-polymetallic ore, poor research status and the only-showed mineralization information of metal ores, the essential of mineral exploration is how to riddle and evaluate these anomalies scientifically and reasonably.Based on the analysis of regional mineralization’s geological background, this thesis researched and evaluated the distribution feature of regional geochemical datum , the geochemical background, the classification of anomalies, the extraction and screening of geochemical anomaly information and the mineral exploration potential of these anomalies in West Kunlun.It was found in the research that the content of stream sediment’s instruction elements matched a multimodal distribution or approximate lognormal distribution, but not the normal distribution or lognormal distribution, the geochemical background of the stream sediment approached geological cells of underlying bedrock closely which had different values of geochemical background.The major formations which is important to mineral exploration potential in the research area are Tunlonggongba Fm(C2-P1t), Bayan Har Mountan Gr(Tb),Yanshiping Gr(Jy)and Tielongtan Fm(K2t).Based on processed the raw data of sediment’s instruction with the scale of 1:200,000 and delineated every contrast anomaly of all the elements respectively with the two methods of”subinterval area median contrast filtering method”and”subinterval area anomaly threshold contrast filtering method”, the overlap anomaly contrasts from the two methods were took as a new anomaly border to re-delineate a single-element anomalies’map and a multi-elements anomalies’map.Depend on the characteristics of exceptional elements grouping, exceptional concentration and exceptional intensity, exceptional area, exceptional continuity, exceptional intensity of multi-elements grouped contrast values and the ability of indicate elements mineralized individually, the author filtered 35 places of integrated anomaly with 9 of A type exception, 12 of B type exception and 14 of C type exception. The author also ordered the mineralization possibilities of every anomaly area for being priority selected when it was needed to check the anomalies further.It was researched out that the elements of Cu, Pb, Zn, Sn, W, Au and Sb had a super concentration phenomena in the major geochemical anomaly areas. The job of exploration should be focused on the deposits of Porphyry copper, Hydrothermal copper-polymetallic ore, Hydrothermal Pb-Zn ore, Granite-type tungsten tin ore, Hydrothermal Sb ore and lode gold.

Wall rock alteration is an important indication for exploitation, it is mean that the componential, ructural and tectonic change of the rock result from the temperature, hydrothermal and fizzwater.The ferriferous metallic minerals and alteration minerals which have OH-or CO32- . Most of endogenetic deposits have alteration phenomena of pyrite mineralization、sericitization、carbonatation etc, moreover because of hydrothermal ore-forming solution,, the region of alteration is bigger than that of deposit,this provide conditions for information extraction of alteration. Most of altered rocks have amount of Fe3+、OH-、CO32-. A mass test data of rocky spectrum proved that these ion have key reflecting or absorp bands from visible region to NIR, but the chemical constituent of rock-forming minerals (Si, Al, Mg, O) don’t have the above spectral features, which constituted the physical foundation of alteration information extraction. Alteration information not only have spectral characteristics, but spatial characters. The spatial characteristics of alteration information means that the spatial distribution of alteration is controlled by structure, rock mass as well as other metallogenesis from geologic function aspect. The spatial characteristics of alteration are the basis of the interpretation of alteration information.Inner Mongolia is important metallogenetic area of Fe-Cu-Pb-Zn-Au etc. in the Western China. The geotectonic place is among syntaxial place between the fold systems of Baikalides and Daxinanlin Mountains, the ore-formation orientation, magmatic activity, deposition, mineralization of structural lineament is controlled by the deep fault. The intrusive rocks occured widely in the area, and chiefly distributing in Chagantaolegai, and the late period result of the Mesozoic including plagiogranite、granodiorite、monzonitic granite etc, the alkali granite、monzonitic granite, quartz diorite of early Yanshan period; granite porphyry, beschtauite of Yanshan late period; as well as dioritoid vein, quartz vein fragmentarily. The strata and irruptive rocks were not deteriorated, but hydrothermal fluid alteration is partly intense, which are essential signs of mineral prospecting.The content of Fe, Mn, Cu, Pb, Zn, Au, Ag, Mo etc. metal ones among more than twenty elements appearing in region of interest is higher and centralized partly. It has definite correlation with lithologic characteristic, structural feature of magmatic rock and lithologic characteristic of sedimentary rock through telement distribution of Fe, Mn, Pb, Zn, alunite etc. mineralized in connection with magmatic activity in early Yanshan period, and Cu, Mo, Ag, Au etc. accompanying with semivolcanic taxite intently. Their metallogenetic country rock and mineral ore indicate compatibility in space. More metal mineral occurrences were discovered in this area, mainly scarn magnetite containing Cu, Zn in the west of LongLinShan, porphyry Au、Mo mine in Changling, chrysargyrite in Longlinshan, Au, Mo mine in the north of this religion etc.. We also discovered three large-scale size geochemical anomaly, which wereⅡgrade mining area in Longlin, Changlin, Halasheng.Through structural interpretation, lithologic interpretation combined with geological information, ETM images in region of interest from USA land satellite were processed by remote sensing image processing software platform. Firstly, the author carried out image mosaic, geometric correction, image enhancement, band-ratio analysis, and so on, enhancing and interpreting a lot of tectonic and concealed rock of this area. Secondly, the author studied alterative rocks and wall rocks’ spectrum characters and differences within ETM bands, hereby, the model to enhance and extract the remote sensing information of mineralized alteration was established, and the remote sensing infornation of mineralized alteration were extracted by the”ETM mask+principal analysis+band-ratio analysis”. The author selected seven factors in favor of ore forming as the spatial information data resources. They are linear density anomaly of remote sensing, linear frequency anomaly of remote sensing, circular anomaly of remote sensing, geochemistry anomaly, geological anomaly and the known ore deposits (point). Finally, in the system of Map GIS 6.7, the author firstly integrated the geology map, remote sensing interpretation map, and mineralized alteration infomation map extracted from the remote sensing image, and analyzed synthetically the ore-forming geological background and the ore-controlling factors of this area, then utilizing GIS spatial analysis carries through synthetic analysis of multi-information made out the prospecting of ore-finding and confirmed five ore-finding forecast canes, which will be important instructing meaning to production and ore-finding in the future.In a word, iron-stained alteration information in this area is intensive and mainly distributes in the south、west part、northeast of the reseach area,southern area among them is the largest and the most intensive one, which shows lumpy distribution in the closely axial region of Manzhouli anticlinorium belt and is NE extension. Argillation alteration information is few,distributes mainly in the southwest and the center, which shows apparent NE banded distribution. According to the result of alteration information extraction、the characteristic of linear programming and circular structure, the distributional characteristics of rock mass etc compositive remote-sensed information establish three remote-sensed metallogenic prediction units, which consist in the south, west, northeast of the reseach area. Excavate the metallogenetic condition and metallogenetic characteristic of the prognostic units adequately, providing technical base for the investigation of mineral resources in the researching area.

This thesis focuses on researching and summarizing the geological setting, mining and deposit geological features of Jinshizhang by employing comprehensive geological analysis on the basis of other researcher’s data. In addition, the thesis completes the metallogenic prediction through extracting the geophysical and geochemical information of Shanmenqian-baishuizhai combining with mineralization prediction theory.The field investigation and indoor analysis in Jinshizhang show that the Sinian Yunkai-group is related to the mineralizing, E-W trending is the main ore-controlling structure. The sinian volcanic activities provided some material source. Magmatic activities during the Yanshanian period were the most intensive which provides the thermodynamic and structural conditions for the mineralization, migration and enrichment. The type of deposit is volcanic deposition-magmatic hydrothermal liquid superimposed transformation. The ore-body main located in the fractured zone of Sinian Yunkai-Group which is composed of high-grade metamorphic rock with marble, andesitic lava and mixed rock. The content of Ag varys widely, the contents of Mn, Zn and Pb are also varied in some degree. The contents of Si, Ca, Al are high. The content of trace element Be is lower.By a 1:10000 measurement of soil geochemical profile in Shanmenqian-baishuizhai and the extraction of geochemical information, ten geochemical anomal areas were certified, among which the Ht5, Ht6, Ht7, Ht8 and Ht10 have important implications for the Ag-Pb-Zn polymetallic deposit. The cluster and factor analysis of geochemical data showed that Cu is most closely with the ore-forming elements Ag, Pb, Zn, followed by Au and Sn. The factor analysis extracted four main factors, which showed the multi-stage and multi-phase of the ore-forming processes and hydrothermal activity.The results of 1:10000 measurement of direct current and high-precision magnetic in Shanmenqian-baishuizhai show that the low resistivity and high polarization anomaly for number three, four, six in Shanmenqian were important for exploration of the Ag-Pb-Zn polymetallic deposit. However, there is not significant metallogenic abnormalities in Baishuizhai, the four high polarization anomalities zone are narrow and low amplitude, less than the known ore body anomaly.According to the geochemical and geophysical results of Shanmenqian-baishuizhai, combined with comprehensive analysis of geological features, there delineated three A-grade predicting areas, two B-grade predicting areas and one C-grade predicting area.