The Application Of Earth Exploration And Information Technology To Metallization Prediction Of Huge Deposits In Altai Mountain (the South Side), Xinjiang Province

Against the current situation of'little big deposits and many small deposits'in the western of country, funded by'Dominant mineral resources exploration and evaluation of Xinjiang province-the selection of exploration target and positioning of large copper forecast in Crown Basin "(2001BA609A-07-03) project funded by the Earth exploration the paper develops the application research of geological information for huge deposits in the Altai Mountains (south edge),which has important theoretical significance and big practical value for the breakthrough of seeking mineral deposits combining.Through developing and using the system of advanced GeoMedia Professional6.0GIS and advanced software integration technology, supported by MSSQLSERVER2000 large database management software, integrating and managing the Altai region's information on geology, geophysics, geochemistry, remote sensing data and scientific research, graphic, image, establishing a multi-source database, which make the database structure clear, reasonable and suitable. Using VB.Net advanced platform developed ten data management module makes data transmission, image processing and splicing is more rapid and accurate. In addition to directly calling the Oasis montaj geophysical processing software, the system can use some special features MAPGIS on the geophysical and geochemical data processing and integration directly and effectively.In the paper the fuzzy mathematical method with wide scope of weights is taken as a mathematical model, which plays functions of judgment, evaluation, reasoning, decision-making and control and overcomes the shortcomings of low level exploration in individual districts at the same time. On the base of examining the relevance of the information between direct and indirect prospecting and converting information law between them, the paper designs the geological information extraction of 25 variables. And contribution of each variable in predicting is weighted and weights number is set reasonably. The paper absorbs the international advanced metallogenic theory on the base of law of mineralization in Xinjiang, and builts large, super-large ore deposits of the visual localization prediction system using GeoMedia Professional6.0GIS systemUsing predicting system metallogenic information area has been selected, which are Iinxi-Yiermande, Jinshan, Lingchang gold predicting area in Tulashu gold ore belt of Yili; Wulasigou-Tian muerte and tuosibasitao copper polymetallic predicting area and Aersayi gold deposit in the south of Aletai, and Arkesayi gold deposit, Manku iron ore area.By the metallogenetic predicting system, the paper builts 4 predicting models on typical deposits and applies them for 2 regions of Lasu and Altai and delineates anomalous area. After the verification of field exploration the advance and accuracy of metallogentic predicting system is proved which as obtains good geological results. Developing a series of advanced software of GeoMedia Professiona16.0,MSSqlServer2000,Oasis montaj the paper makes the function of prediction system perfect.