高精度预测模型及其构建方法——以脉状金矿为例

A High-Precision Predicting Model and Its Constructing Method for Vein-Type Gold Deposits

采用“场理论—场结构—场分析—场模拟”方法构建了具有时空结构框架 ,能反映局部异常精细结构特征 ,可对多元预测信息进行有效提取和集约化分析的高精度预测找矿模型。该模型是对致矿异常结构、矿化结构和信息结构的耦合分析与关键预测信息提取及优化相匹配和深化后的最佳表达方式。其技术关键是预测对象的地质、地球物理。

A high precision forecasting model using the “field theory field structure analysis field simulation” has been established to predict the concealed orebody. In order to form the best predicting pattern, the coupling analysis of anomalous structure, metallogenic structure, selected and optimized forecasting information system are used in the construction of the model. Technologies involved in the modeling also include analysis of the fine structures of geological and geophysical explorations, geochemical explorations of anomalous fields and metallogenic field of the forecasting target, as well as the construction of space location of the orebody in the target area. The forecasting model presented in this paper has been employed in a typical hydrothermal vein like gold deposit located in the northwestern Jiaodong peninsular to forecast the location of the concealed orebody. With the forecasting of deep concealed orebody as an example, some problems worth further study are also outlined and discussed.