Of Yunnan Mengxing Lead-zinc Ore Body Deep Localization Prediction

The mineralizing forecast theory are developing to strategic theory and tactic theory, but the method of mineralizing forecast reveal frondose and exact concealed the orebody localization forecast and the three dimensional simulation visible development direction. Carrying on the existing data and the historical data, we can dredge up date and discover new knowledge and integrate useful information to locate the forecast of orientation.This appears especially important.In the recent years, GIS is at very fast speed moment not only at theory but also at appliance, especially the spatial database technology of object-oriented. Spatial dates of spatial database also have rich hidden information besides revealative information. Such as DEM also have the information of geological lithology and structure aspect besides loading elevation information.These secret information only reveal through data rootling. We should apply GIS technology to deal with geological objects so that we can open out internal existing rules and more guide deep forecast of orientation. These have profound meaning of direction and long-range current signification.This paper takes the theory of synthesize mineralization forecast as the foundation. It gathers systemly and clear up the recent and history geological dates of MengXing Lead-zinc mine. It also analyzes the mining area geological characteristic and the mineralization rule. The depth of diggings are forecasted by applying the crossing subjects theory and ways, in virtue of space statistic analyze and reconnaissance of physical geography. These all have taken better effect. It mainly includes the following several aspects :1. Design the Spatial database of MengxXing Lead-zinc mine's deep forecast. Reasonably divided the forecast entity and its the attribute relations, has realized the spatial data and the attribute number integrated management, could fast with drawand screen the mineralization main body information.2. Apply ArcGIS to analyse the characters of parameter such as the mining area orebody, orebody thickness, lead personal status, zinc personal status and so on. constructs the ore bodythree-dimensional model, receal the orebody spacecharacteristic and the change rule.3. Through the physical geography method after the known area research, develop unknown area analysis, confirmed the mining area depth portion and the periphery have eight unusual belts, has the low resistance rate natural characteristic in the spot, and exceptionally carries on the geological inference explanation to it.4. In the spatial variation rule of ynthesis orebody, the prospecting symbolized and unifies the EH-4 unusual characteristic in the foundation, has selected three A level target area in the mining area depth portion and the periphery, three B level target area and two Clevel target area. And a level target area obtained the confirmation in the present stage exploration project.