关键词: 铅锌矿, 矿床成因, 成矿地质条件, 找矿方向, 韧性剪切带, 成矿远景区

Abstract: Beiwagou area is located in the Au-Ag-Cu-Pb-Zn-B metallogenic belt，which is in the stage of Yingkou-Kuandian early Proterozoic and Indosinian-Yanshanian period.The ore-forming geological conditions of the area are favorable.Due to the developmental structure and the widely distributed magma rock，the prospecting prospects of the area are good.In order to further analyze the ore-forming conditions and the prospecting direction of the lead-zinc deposits in this area，the geological characteristics and the mineralization characteristics are analyzed in depth based on the basic geological research method by the way of the outdoor investigation and indoor geological data analysis.The results show that：①the mineral deposit genetic type in Beiwagou area is syngenetic sedimentary-metamorphic hydrothermal reformation type and post magmatic hydrothermal type，the formation of the deposit is controlled by strata，magmatic activity and tectonic activity，the tectogenesis in Luliang period is the dominant factor；②the lead-zone deposits are controlled significantly by the ductile shear zone in Luliang period，the heat source，power，migration passage and enrichment space of the lead-zine mine are provided by the ductile shear zone in Luliang period；③the ductile shear zone associated with mineralization is located in the normal wing of overfold，and the general strike of the ductila shear zone is NW.According to the mineralization condition and the anomaly characteristics and distribution regularity of the lead-zinc mineralization in the peripheral area，it can be concluded that the brecciform lead-zinc mine is the main search object,the favorable prospecting area in the third interval of Dashiqiao formation of Liaohe group with developmental ductile shear zone near the early Proterozoic Liaoji granites.Based on the above analysis results，two metallogenic prospecting regions named Hengshanli-Wangjiapuzi and Daweitun are delineated so as to provide reference for the prospecting work in this area.

Key words: Lead-zinc deposit, Genesis of mineral deposit, Metallogenic geological condition, Prospecting direction, Ductile shear zone, Metallogenic prospecting region