Metallogenic Regularity And Prospecting Direction Of Matouya Copper-gold Deposit,Shandong Province

The study area is located in the mountainous area of Luzhong,the administrative division is under the jurisdiction of Linyi City,with an area of about 144km~2.This area has a long history of gold mining.Some people have mined gold here during the Ming and Qing dynasties.After the liberation,many geological teams have successively carried out gold searching work in the area,which shows that the copper-gold mine in this area have superior metallogenic conditions and relatively Good prospecting prospects.This thesis comprehensively collects the latest basic geological data,mineral exploration data,regional geophysical prospecting,regional geochemical exploration remote sensing data,scientific research results in the study area,and analyzes the spatial distribution of strata,structures,magmatic rocks and their relationship with copper and gold mineralization in the study area.Through the analysis and research of typical gold deposits,the regional mineralization elements are extracted,including 4 types of essential elements,4 types of important elements,and 2 types of secondary elements;from the occurrence of copper-gold ore bodies,ore-controlling ore-containing structures,The mineralization laws are systematically summarized in the aspects of rock mineralization alteration,ore-forming mineral sources,and co-associated laws of mineral deposits.This thesis believes that the copper-gold deposits in the Matouya area were formed in the Yanshanian period,and the Pacific plate subducted to the Eurasian plate,forming the Yishu fault zone and the secondary faults on both sides,and the mantle-derived magma rose along the Yishu fault and its secondary faults.During the process,the ore-bearing hydrothermal fluid is brought to the surface.With the decrease of temperature and pressure,the metal groups such as Cu,Au,and Ag in the hydrothermal fluid are analyzed to form small ore bodies.The thesis summarizes the prospecting signs of copper-gold deposits,and believes that the Pengjialanzi fault and its secondary fault fracture zone in the Matouya area and fracture development position of amphibolite in Yanlingguan formation have good metallogenic conditions.As the next prospecting direction for copper-gold deposits in this area,new prospects are expected to be obtained.The prospecting breakthrough.