Hebei Province Ceyu – Neiqiu Geological Characteristics And Ore Prediction Of Copper Polymetallic Metallogenic Belt

Bye taking the "VMS type" and "type stratabound ore deposit" theory as the instruction, applying for the theory of continental extension structure, metamorphic core complex, ductile shear structure and tectonics, ore deposit geology, metallogenic regularity,the ore-forming forecasting theory and professional knowledge to predicting, using field investigation and indoor test analysis, metallogenic conditions, ore deposit geochemical analysis and analogy methods of synthesize information of geology analysis and forecasting.Based on the metallogenic geological background, ore deposit geological characteristics and geochemical characteristics of research, this paper summarizes the metallogenic regularities, ore controlling factors and prospecting indicators, analysis of genesis and set up prospecting model.Above research results, to carry out the research about the prospecting target prediction on Ceyu- Neiqiu copper polymetallic metallogenic belt, aims for the future in the region provide the important reference basis for mineral exploration and evaluation of promoting the southern section of taihang mountain mineral exploration work.The Ceyu-Neiqiu copper polymetallic metallogenic belt is located in the north of the southern margin of north China platform, in the NEE extrending part of Li Shi and Yang Quan ancient rift of Zong Tiao mountain ancient rift system,which belong to rift zone of Precambrian craton in China and the North Korea, and correspond to copper polymetallic metallogenic belt of Zhongtiao mountains,making Ceyu-Neiqiu copper polymetallic metallogenic belt become a powerful section of copper polymetallic deposit formation.By studying the regional metallogenic regularity,the five indicators of Ceyu-Neiqiu copper polymetallic deposit are summarized and the prospecting mode of copper polymetallic deposit in the metallogenic belt is formed preliminary.By studying the regional geological, geophysical and geochemical data, we filtered out three prospecting targets. i.e. Taoyuan- Huaishuzhuang- Yinhepu, FangnaoYanglangou- Ganchuangou and Nansi- Ceyu- Wujiayao prospecting target. In addition, the prospecting directions in the three targets and prospecting methods have been claritified, which manifestat the combination of the metallogenic theory and the practical ore exploration.The Cu polymetal deposites occurring in Northern Belt( Nansi-type) and Southern Belt(CeYu-Neiqiu type) are respectively found in meta-clastic rocks(Nansi Formation) and meta-basalts(the second section of Nanzhangsi formation and the fourth section of Nansi Formation) which have a strata bound characterisitcs. The Cu polymetal deposites have several sources of ore-forming materials including the volcanic sediment, magmatic hydrothermal and hydrothermal metamorphism hydrothermal. They are belong to marine volcanic hydrothermal deposits which have experienced multi-periods of mineralizing including volcanic-sedimentary which provide the ore-formation materials, magmatic hydrothermalism, regional low temperature dynamo metamorphism and brittle fracture transformation.