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Geological characteristics and ore prediction on prospecting the depth and margin of Laowan Gold Deposit in Henan Province

Xue Mengfei;Zhang Jianjian;Pan He;The Third Institute of Geological Exploration,Henan Bureau of Geology and Mineral Resources;Faculty of Land Resource Engineering,Kunming University of Science and Technology;Henan Academy of Land Resource Sciences;  
The Laowan Gold Deposit is located in Tongbai-Dabie nonferrous metal metallogenic belt,and its orebodies occur in amphibolie gneiss,amphibolie and metaquarzite of Pt2 Guishan Formation.Based on the geological characteristics of the Laowan Gold Deposit,it is found that there are anomalous combinations of Au,Ag,As and Sb in deep ore bodies,and they are located in the magnetic and gravitational and the gradient band of induced electrical anomaly.In order to verify ore-bearing properties in the deep ore bodies,the construction drilling project has been carried out,confirming that the stratum with elevation below -900 m has good prospecting potentials.
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