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《Geology and Prospecting》 2006-03
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ORE-BEARING POTENTIALS OF GEOCHEMICAL BLOCKS IN THE NORTH QILIAN METALLOGENIC BELT

ZHANG Xiang~(1,5),LIU Jian-hong~(2,5),LI Zhi-heng~3,SU Jian-ping~4,WANG Xing~6(1.The Second Institute of Geology and Mineral Resources,Gansu Bureau of Geology and Mineral Exploration and Development,Lanzhou 730020;2.Gansu Bureau of Geology and Mineral Exploration and Development,Lanzhou 730000;3.Gansu Institute of Geological Environmental Monitoring,Lanzhou 730020;4.Institute of Cold and Arid Region Environment and Engineering,Chinese Academy of Sciences,Lanzhou 730000;5.China University of Geosciences,Wuhan 430074;6.No.7 Exploration Team,Qinhai Bureau of Nonferrous Geological Exploration,Ping'an 810600)  
The north Qilian area is one of important metallogenic belt of China,and it is composed of microcontinent,ophiolite,mélange belt,ocean ridge and ocean island volcanic rocks,island arc volcanic rocks and island arc sediment rocks.The ore-forming elements of Au,Cu,Fe,Mn,As,Sb,Ba, Cr,Ni,Co and V are strong enriched in the metallogenic belt.The geochemical block theory and method have been applied to research the distribution characteristics and metal resources potential.Utilizing classification of blocks,internal structure and serials of blocks are established to form relevant geochemical model,in order to search for processes of gradual enrichment of mineralizing elements.By using the geochemical block and regional geological background,ore-forming potentiality of the main metallogenic elements of Au,Cu,Cr,Ni,W and Sb is analyzed.Ore-bearing potentials of different geochemical blocks in the north Qilian ogogen are evaluated.
【Fund】: 中国地调局大调查项目(编号:20012010089)资助
【CateGory Index】: P617
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