Hunan Province The Hengnan Sanjiaotan Wolframite Ore Genesis And Metallogenic Prediction

Sanjiaotan black wolfram ore field is on the southern edge of the tumid hole which is between Hengyang Diwa belonging to the southeast Diwa Jiangxi&Guangxi Diwa and Chaling Diwa .Kawaguchi from the north and south to the Provisional Construction Lei Liu Heng and the North East to the structure superimposed Composite parts.Based on the predecessor's achievements, the writer summarizes their experience and discovers some questions. The writer has done sufficient geological surveys carefully and got a great amount of geological information, rock and ore samples. Applying modern petrology,deposit theory,geochemistry,mineralogy,isotope geology and metallogenetic prognosis theory and methods, combining other subjects such as processing datum and simulating maps with computer, the author also analyzes the relationship among the ore-forming and stratum,structure,magmatic rock based on studies about ore-forming geological background. Applying the views of geomechanics, the author analyzes the evolution and changes of ore district structure in macro and micro views. Through studying on the geological feathures of ore deposit and solid ore, the author doesn't only summarize the metallogenetic rule and establish a new metallogenetic model ,but also analyze varies ore-controlling factors and bring forward a new ore-controlling model.Thanks to the systematic studies, the author has gotten following conclusions: Structure,stratum and magmatic rock are the important factors of mineralization in this ore district. the formation of the control of mineralization is mainly manifested in two aspects. on one hand, rock (formation) of the physical and chemical nature of mineralization at the physical and chemical conditions is necessary to provide the necessary boundary conditions, on the other hand, rock (formation) provides some of mineralization and mineralization of the source material. Magmatic rocks and mineralization in the relationship between the performance of the main magmatic doesn't only provide the main mineralization into a source of minerals,and rock in the original joint structure for a given ore mineralization to provide space. The relationship between structure and ore-forming can be shown in three forms: First, structure can drive ore elements to activate and to migrate. Second, structure can create suitable ore-hosting sites; third, structure can afford routes for ore elements circulation.Through the scene geological survey, with plans for indoor testing and analysis, found that the tungsten ore mineralization distribution of the black triangle Sanjiaotan wolframite deposit the prospecting area of the mineralization forecast.