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OCCURRENCE STATE AND REGULAR PATTERN OF ENRICHMENT OF GOLD IN THE ZHONGFAN GOLD ORE DEPOSIT,DONGZHI COUNTY,ANHUI

CHEN Shou-yi1,DUAN Liu-an2,3,YANG Xiao-yong2,ZHAO Ming-chuan3(1.No.321 Geological Team of Bureau of Geology and Mineral Exploration of Anhui Province,Tong,Anhui 244033;2.School of Earth and Space Sciences of University of Science and Technology of China,Hefei,Anhui 230026,China;3.No.7 Gold Exploration Unit of Chinese Armed Police Force,Yantai,Shandong 264004,China)  
The Zhongfan gold ore body occurs in the altered zone of cataclasite of the Dengjia Formation of the Qingbaikou System,and the nearby secondary structure-controlled altered zone of sandstone and vein rock,is evidently controlled by NWW structures.In recent years,commissioned by the property owner,we organized engineering work in the priority section of the area,and outlined 9 gold ore bodies,Ⅰ-1,Ⅱ,Ⅷ-1 and Ⅷ-2 of which are major ones.Based on careful analysis and study of a great number of samples collected,combined with field work and observations,this paper summarized the ore type,mineralogical composition,distribution and state of occurrence of gold,and obtained initial knowledge of the gold enrichment,which may be helpful to regional ore prospecting.
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