Metallogenic Series And Metallogeny In Congo(Kinshasa) Part Of Central African Copperbelt

Research on the metallogenic series was carried out in the Congo(kinshasa) part of Central African Copperbelt,which stretchs over a 300 km-long and 100 to 150km-wide region from Kamoto in northwestern Kolwezi,southeastwards through Likasi (Congo),to Kinsenda in southeastwards lubumbashi.On the basis of the digestion and absorption of the past data and the advanced research results,selected representative deposits to make detailed analyse;Used the theory of metallogenic series to understand the main types of metal deposits, occured in Katangan copper-cobalt belt;Studied the transformation mechanism about post mineralization structures movement, metamorphic hydrothermal, supergene oxidation and secondary enrichment to various types of deposits;Selected the weathered area to find the supergene oxidation deposits;trying to establish the metallogenic series in Katanga copper-cobalt belt, and further advance the direction of geological exploration and mineral development activities in this metallogenic belt.The research finds and innovation of this paper are mainly indicated on five aspects as follows:1.According to the sedimentary environments,evolution of Katangan Basin,and tectonic events of Lufilian Arc,the sedimentary process and deformation of the Katanga orogen dominated regional main mineralization events.The formation of a variety of deposits in Katangan Copper-Cobalt Belt is significantly controlled by structures, lithology and supergene oxidation, with apparent spatial and temporal distribution regularity.2.Both metallogene and the genetic relationship among these metallogenicsubseries deposits were discussed,ore formation was dominated by exhalation-sedimentation, subsequently subjected to metamorphism reformation, superposition of structural hydrothermalism and supergenesis.3.Established the metallogenic series in Katangan Copper-Cobalt Belt.Based on minerogenetic series theory,according to geological setting,tectonic evolution and mineralization,temporal and spatial distribution of main mineral resources,the Katanga copper-cobalt belt can be classified into five series:â… -The metallogenic series of copper,cobalt deposits related to syndiagenesis,and hosted in rocks of Mines subgroup;â…¡-The metallogenic series of copper,cobalt deposits related to diagenic metamorphism-hydrothermal metasomatic,and hosted in rocks of Dipeta subgroup;â…¢-The metallogenic series of zinc,lead,copper,silver,uranium deposits controlled by fracture, and hosted in carbonated rocks of Nguba group;â…£-The metallogenic series of copper,gold,silver vein-type deposits related to hydrothermal,and hosted in sandstone rocks of Kundelungu group;â…¤-The metallogenic series of elluvium-deluvial cobalt placer related to weathering,and hosted in caenozoic rocks.4.Selected representative deposits of different subseries in the study area to make detailed analyse.Regional geological and tectonic setting, geological characteristics,and geochemistry of the Kamoya copper,cobalt deposits, Kansuki copper,cobalt deposite, Kipushi zinc,lead,copper deposit, Dikulushi copper,silver deposit,and Kansuki elluvium-deluvial cobalt placer were detailed described.5.According to the spatial distribution regularties of the subseries,pointed out the next Prospecting direction.