Geological Characteristics And Metallogenic Predictions Of Copper Polymetallic Deposits In The Heilongjiang Jiangjiaweizi Region

The study area is located in the Xiaoxinganling-Songnen basin polymetallic metallogenic belt,the Gongpengzi-Wudaoling CU-Mo-Pb-Zn-W metallogenic Sub-belt,namely the south section of " Gongpengzi-Pingshan copper-iron polymetallic I level metallogenic prospect".The regional metallogenic geologic background is better,including the Binxian Gongpengzi copper-tungsten(silver)deposit,the Acheng iron ore deposit,and the Wudaoling molybdenum iron pyrite deposit.This paper through the 1:20000 soil geochemical measurements and 1:10000 high precision induced polarization intermediate gradient measurement results measurements are summarized,and a total of 4 metallogenic prospects are predicted: No.(1)metallogenic prospect area(the combination abnormal in Jiang 09-Ht-08 ? 09-Ht-09northwest).No.(2)metallogenic prospect area(the combination abnormal in Jiang09-Ht-12,Jiang 09-Ht-13 central part).No.(3)metallogenic prospect area(southern part of the combination abnormal in Jiang 09-Ht-15,Jiang 09-Ht-18,Jiang 09-Ht-21).No.(4)metallogenic prospect area(the combination abnormal of Jiang 09-Ht-22 and volcanic rocks granitic diorite contact zone southeastern part)Although the alteration mineralization zone was not directly found in the study area,alteration mineralization such as silicification,chloritization and pyrite mineralization was found in the volcanic rocks in the upper part of Taiantun Fm.The alteration mineralization of chlorite and pyrite in the south of the research area is also seen in the dacite of the fractured and altered English,along with its fissures filled with the silica and the clumps of black mica,the surface of the rock has a leaching hole,the partial pyrite and the Fe-Mn film.The highest content of Zn was 0.14%,and the zinc mineralization was demonstrated by chemical samples.This paper through the geological characteristics,the geological background data of geophysical and geochemical prospecting,geochemical characteristics and geochemistry of the area of Jiangjiaweizi are summarized,and the Metallogenic prediction area is delineated by combining the engineering verification results with the regional metallogenic geologic background,and the thinking of the prospecting conditions and the next work of the specific metallogenic areas in the research area are put forward.Has the practical significance,may provide the basic information for the regional prospecting.