| Shanxi Province Lingqiu silver copper lead and zinc molybdenum mineralization area remote sensing geological survey area is located in the country 20 one of the key mining areas of the “Jin Ji coal belt”,the area is located in the northeast of Shanxi Province,geological structure is complex,frequent magma activity which is rich in mineral resources,a wide range.But how to realize the regional surface prospecting breakthrough? At present,the mineral exploration is characterized by information ore-prospecting,which focus on theory,method and technology in the integration of quantitative prospecting system of new era.Therefore,using new technology,new data,new mode to build what kind of method is applied to forecast mine more economic benefits? A variety of three-dimensional prospecting system will improve the metallogenic prediction accuracy and efficiency.Remote sensing data from remote sensing image as the most direct recording feature space characteristics of the display of the form,it has a different colour,shape and texture of real display ground geological structure conditions and all kinds of geological body and space characteristics such as morphology and distribution of geological phenomenon.And the formation of various minerals and output will be accompanied by a series of spatial distribution characteristics of geological phenomenon.Enrichment of endogenetic metallic ore deposits are controlled by geological structure.faulted structure is more obvious.It has the form of linear structure on the remote sensing image.In addition,the alteration is the product of magmatic activity and interaction of surrounding rock,given that most endogenetic deposits accompany the phenomenon of metasomatic alteration of wall rock,and the alteration zone is greater than the scope of the orebody distribution several times to dozens times.Therefore,nearly ore rock alteration information is an important symbol of prospecting.Occurring in the process of regional metallogeny deposit,mines,mineralization and hydrothermal alteration dizzy have strong spectral sensitivity,and often show wall rock alterations of information.These information is often refer to the meaning of mine.Therefore,compared with conventional geological methods,It is more likely to get the information on the remote sensing image such as colour,line and ring,block,belt combinations to extract mineralization related strata,rock mass and fracture structure,wall rock alterations,etc.This paper,using remote sensing technology of shanxi Lingqiu area conduct the remote sensing geological survey work,and get information for further investigation of mathematical analysis and qualitative analysis.It provide guidance for further geological and mineral exploration work.The image interpretation in the study area,this paper,by using the three-dimensional image of auxiliary two-dimensional image form conduct geological interpretation in the area.It mainly task is visual interpretation,ang get a great deal of intuitive related to ore-forming geological information.It mainly software used in indoor is Arcgis,ENVI,Mapgis and CAD,etc.The interpretation of the linear mathematical verification and doing some field validation.Using Arcgis,surfer software map nuclear density diagram and the ordinary linear density,and analyze the density of the mine and the known area overlay,and find the set of degree is higher.Density figure is one of a foundation for metallogenic prediction.Using principal component analysis method study area image alteration information extraction and classification.The application software is ENVI.By extracting alteration information in arcgis software,using the data correlation method,with each grid alteration area based on the data of the proportion draw contour map.The contour map and the known ore area overlay analysis found the proportion of high value area and the known set of mining area method is extremely high.Therefore,the quantitative statistical method has the very high scientific nature and rationality.In oeder to make metallogenic prediction as another foundation drawing.We willoverlay the quantitative statistical figure of the map,and combine the multivariate information for delineating metallogenic prospect area,including regional geological background,the linear kernel density figure,linear density diagram,alteration information ratio contour map,etc.In the study,it is the second time application for remote sensing technology in Lingqiu area metallogenic prediction,and is more accurate than the first time.The research show that using remote sensing technology of metallogenic prediction efficiency is higher,the effect is good and the cost is low.Finally,selects A,B,C three levels and 11 metallogenic prospect areas.Two prospective area has been confirmed by field reconnaissance,achieving mining grade. |
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