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《Science of Surveying and Mapping》 2009-01
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Research and application of lead isotopes predication information system for blind deposits

ZHANG Li min①④,CUI Xue jun①②,TONG Heng jian③(①CAS Key Laboratory of Marginal Sea Geology,Guangzhou Institute of Geochemistry,Chinese Academy of Science(CAS),Guangzhou 510640,China;②Gansu Bureau of Exploration and Development of Geology and Mineral Resources,Lanzhou 730000,China;③China University of Geosciences,Wuhan 430074,China;④Graduate School of Chinese Academy of Sciences,Beijing 100039,China)  
Using the secondary developing function of MapGIS,a lead isotope predication information system for blind deposits was established.The software kept up to date with the new theory of quantified predicating for ore body based on lead isotopic geochemistry.Taking advantage of the two-dimensional information data processing and three-dimensional modeling for the deposit district,the system realized the function of accurate and quick prediction for the embedding depth,geometric shape and resource quantity of the blind ore body.The Yingzuishan gold deposit is selected as an application example for the system,the basic mineral resources database is established and geological map,geochemical and geophysical anomaly map,exploration lines' profile for the deposit can be automated produced based on the database.Finally,based on the spatial analysis and integrated evaluation,three-dimensional model of the measured ore body for the Yingzuishan deposit was constructed and blind ore body of this deposit was predicated successfully.
【Fund】: 甘肃省科技攻关项目“Pb同位素深部找矿数据处理系统研究”(2GS052-A52-003-11)
【CateGory Index】: P208;P612
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