隐伏矿铅同位素预测信息系统开发与应用

Research and application of lead isotopes predication information system for blind deposits

隐伏矿铅同位素预测信息系统软件是根据最新的铅同位素地球化学对矿体的深度和资源量定量预测理论,利用MapGIS的二次开发功能,通过矿区二维信息数据处理和三维建模,实现对隐伏矿体的埋藏深度、几何形态和资源量的快速定量预测。本软件在甘肃鹰咀山金矿的预测研究工作中进行了成功应用,取得了较好的效果。

Using the secondary developing function of MapGIS, a lead isotope predication information system for blind deposits was established. The software kept up to date with the new theory of quantified predicating for ore body based on lead isotopic geochemistry. Taking advantage of the two-dimensional information data processing and three-dimensional modeling for the deposit district, the system realized the function of accurate and quick prediction for the embedding depth, geometric shape and resource quantity of the blind ore body. The Yingzuishan gold deposit is selected as an application example for the system, the basic mineral resources database is established and geological map, geochemical and geophysical anomaly map, exploration lines＇ profile for the deposit can be automated produced based on the database. Finally, based on the spatial analysis and integrated evaluation, three-dimensional model of the measured ore body for the Yingzuishan deposit was constructed and blind ore body of this deposit was predicated successfully.