The Prospecting Model And Prediction And Assessments Of Porphyry Copper Deposit In Yangla-xifanping Area

Researching area located on Tethys-Eastern Himalayan region, "San-jiang" structural zone south section, in conjunction with several major intersections of the plate, the southern tip of Yidun arc, combined with the east of the Jinsha River, Ganzi-Litang suture zone on the west side. In recent years, large and very large porphyry copper deposit discovery in the region is such that the area of concern and gradually become an important copper ore district.Prospecting Model is defined on the basis of qualitative prospecting model, the conclusion of the model involves prospecting mark, as a variable, according to some statistics, mineralization variable assignment, and then through the "GIS" software, achieve qualitative information into quantitative information, in order to achieve a comprehensive information prediction model to predict the evaluation of the study area. This collection compiled existing geological study area, geophysical, geochemical and remote sensing data, geological background of the study area, typical deposit feature, metallogenic regularity study summarizes regional prospecting model, and through the development of digital basis maps, with "GIS" software, will consolidate the various types of data superimposed screening favorable metallogenic area, draw metallogenic prospect areas. The main contents are as follows:(1) The study area for a typical porphyry copper mine of information collected, as well as on field reconnaissance typical deposit formation, tectonic, magmatic rocks, ore mineralization characteristics, alteration zoning, etc. in detail research, and the establishment of a prospecting metallogenic belt models with different types of typical porphyry copper deposits.(2) to collect the relevant data in the study area geophysical, geochemical and remote sensing, exception handling after it concluded that the distribution of porphyry copper deposit with a certain regularity abnormal, can become prospecting mark.(3) After the comprehensive information prospecting model, using the method of quantitative evaluation of mineral resources, comprehensive information prospecting model of the individual variables were evaluated and assigned. The study area is divided according to different metallogenic belt out and evaluated and assigned each of them a different model, and finally the use of "GIS" the individual elements of information superimposed mineralization, make projections prospect.Through the above research on the geological background of the study area, regional geological data collected is summarized and presented the symbols for prospecting in the area of typical deposits, thus extended to the entire study area, study area after the porphyry copper deposit Prospecting has some indication. Finally, according to the weight assigned to the Prospecting Model has established the right to make a total of five identified prospect areas were the center of the Zhongxinrong-Yangla prospect, Shangri-La district, Muli-Xifanping-Ninglang prospect, Daocheng Shengmu-Maiwa vision, Daocheng Mengzi-Chahua-Mairi prospect.