Houtuan mining area is located on the periphery of the main mining area of Dayingezhuang Gold Deposit in Jiaodong,belonging to a deep and peripheral exploration area.Using a pluralized information exploration strategy,a combination of structure geochemistry-gamma spectroscopy-multi-polarize electromagnetics techniques was used to carry out ore prediction in the deep and peripheral areas of Houtuan mining area.Surface structure geo-chemistry and gamma spectroscopy measurements covering area 12 km2 were conducted,and through factor analysis,Au-Ag-As-Sb combination anomalies were identified as prospecting indicators in Houtuan mining area.Addition-ally,using the MPMT-18 multi-polarized magnetotelluric system,multi-polarize electromagnetics and anomaly inver-sion along Measurement Line L108-L136 and L80 were completed,determining the location of the deep Zhaoping fault in Houtuan mining area.Based on the anomalous features,distribution,and correlation of structural geochemical measurements,gamma spectroscopy measurements,and multi-polarize electromagnetics,combined with the favorable degree verified by drilling projects,a total of 8 exploration targets were identified.Among them,the A-1,B-1,B-3,C-2,and C-3 exploration targets were verified by drilling projects and yielded mineralization.
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