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He gold deposit , Inner Mongolia graduated force in the North China plate spliced ??northern margin of the subduction zone near the North China plate in the south side of the ore body is lenticular, vein produced Jurassic calc-alkaline , acidic volcano - subvolcanic intrusive complex , their output is strictly controlled by the NW - trending faults control . Through field research and testing means rock and mineral identification , fluid inclusions , rare earth trace , petrological and geochemical characteristics of the mine wall rock alteration system and summarize the results of previous studies , the complete force Hyuk gold deposits Wall rock alteration and mineralization following understanding : wall rock alteration in the deposit type : silicification, potassic alteration , pyritization , sericitization electrical petrochemical , chlorite , kaolin , carbonates which silicification, pyritization and phyllic alteration and gold mineralization relationship most closely ; apparent the mine wall rock alteration zoning , from the center outward , upward from the surface deep , as follows : quartz - sericite zone → potassic alteration zone → with phyllic → propylitic alteration zone , which is most closely related phyllic alteration zones of mineralization , as signs of alteration of the periphery of the zone and deep prospecting ; alteration zone fluid inclusions The body of research shows that inclusion homogenization temperature change between 108 ~ 375 ℃ , the vast majority of temperature less than 200 ℃; inclusions lower salinity test value range between 0.88% to 8.68% , all the value is concentrated in between 1.5 % to 4.5% , the display characteristics of epithermal gold deposits ; alteration zone of rare earth elements REE LREE HREE loss curve is skewed to the right , light and heavy rare earth fractionation obvious with weak Eu anomaly ; trace element studies of the alteration zone relative enrichment of mine Au, Pb , Mo, ??Ba , Zn , Cu , Co , Cr and Ni relative loss displayed with gold polymetallic deposits of the area good mineralization potential ; mine main ore-forming elements Pb , Zn , Cu , Co , Ni enrichment to the deep , extending depth of the deposit site is still good industrial prospects . Through this study , that prospecting potential extension of the end of ore zone II Nancy and extending depth direction is still better to have an important guiding significance for determining the genesis and further prospecting .
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