Multivariate Geo-information GIS Integration And Metallogenic Prognosis In Yuhuashan Area

YuHuaShan is located in qinhang Metallogenic belt, which only have the distence of10km away from the famous volcanic rocks uranium field, both of them have thesimilar lithology and the formation of the basin, they have the eccellent geologicalconditiond and have a large resource potential.In this paper, we establish diversify geosciences feature themes GIS ofYuHuaShan area, in order to provide a management and analysis platform, andprovide the groundwork for prospecting strategy by using GIS tool within this area.The final target is helping us making metallogenic prediction and ore-prospectingsurvey.1. We get the basic data from geology, geography, geochemistry, geophysics,remote sensing and mineralization, which is directly from geological survey and thecollecting of previous material. All classes of geologic data feature layers have beengenerated by pre-processing, vector extracting, coordinate correction, projectiontransformation and property database building data.2. All kinds of geology datas could be stored, effective mamaged, and could bevisualized, spatial data and attribute could be organic combined. Single factor andmulti-factor can be analysis which we can use variety methods, such as spatialanalysis and attribute analysis. We can increase or substract any elements ofgeography informations under the GIS, this lead to the result that the containedinformations of the map can be changed.according to this, the map may meet therequirement.3. With the help of GIS, multi abnormal informations could be visualized, when we combined the survey of exploring and knowledge of geology, we can master thefactor of which may lead something abnormal. We delineation four area ofmineralization prospective areas that according to the analysis of abnormal factor,superimpose of exception information and verification of outside exploring.YuHuaShan GIS system provides a digital platform for the research of oredeposit and the exploration of ore, and it offers a favorable foundation for futuregeological and prospecting, which can stored and mamaged multi-informations.