| Ningxiang type iron deposit is an important kind of iron deposits in China, which is rich in the Hunan-Kiangsi border area. Through conducting the scientific and reasonable minerogenetic prospective prediction, not only realize the sustainable development, but also provide geologic foundation to prospect the mine in the new fields.The research summarize the theory of potential evaluation of mineral resources and developmental situation of method, analyzing adaptability and advancement that forecast mineralization of Ningxiang type iron deposit in the GIS evaluation system.According to analog analyze the conduct of series of mineralization theory, and research layer, areal geologic structure, lithofacies palaeo geography and ore-controlling conditions of model deposit, combining analysis interpretation of general message of physical geopraphy, geochemistry and remote sensing aeromagnetic, MRAS terrace of mineral resources comprehensive information evaluation system establish the mineralize model of Ningxiang type iron deposit and model of mathematic prediction. Applying the function of powerful spatial analysis, MRAS conduct feature analysis for the mineralize factors. To summarize the important mineralize factor of Ningxiang type iron deposit that is the layer of Snmining group, containing series of genesis, the limitation platform subfacies in landward, Fe2O3 deposit of river system, the layer of Snmining group in the range from 100m to 200m and surplus gravity that is unusual more than 2m/s2.Adopting the software of GIS evaluation system of mining resource and computer processing of feature analysis, the research area is divided into 52 predicted zones. These predicted zones are segmented into three A predicted zone, seven B predicted zone and eleven C predicted zone. Potential capacity of 334-1 resource predict 5296.3 ten thousand ton, that of 334-2 predict 4670 ten thousand ton and that of 334-3 predict 3082 ten thousand ton. |
