摘要
Focusing on the issue to deal with inadequate extraction of metallogenic information especially geological information,a new method of extracting metallogenic information based on field model,i.e.the field analysis method of metallogenic information,was proposed.In addition,a case study by using the method of the extraction of metallogenic information from the west Guangxi and southeast Yunnan district as an example was performed.The representation method for the field models of metallogenic information,including the metallogenic influence field model and the metallogenic distance field model,was discussed by introducing the concept of the field theory,based on the characteristic analysis of the distance gradualness and the influence superposition of metallogenic information.According to the field theory superposition principle and the spatial distance analysis method,the mathematical models for the metallogenic influence field and the metallogenic distance field of point,line and area geological bodies were derived out by using parameter equation and calculus.Based on the metallogenic background analysis,the metallogenic information field models of synsedimentary faults and manganese sedimentary basins were built.The relationship between the metallogenic information fields and the manganese mineralization distribution was also investigated by using the method of metallogenic information field analysis.The instance study indicates that the proposed method of metallogenic information field analysis is valid and useful for extracting the ore-controlling information of synsedimentary faults and manganese sedimentary basins in the study area,with which the extraction results are significant both statistically and geologically.
Focusing on the issue to deal with inadequate extraction of metallogenic information especially geological information, a new method of extracting metallogenic information based on field model, i.e. the field analysis method of metallogenic information, was proposed. In addition, a case study by using the method of the extraction of metallogenic information from the west Guangxi and southeast Yunnan district as an example was performed. The representation method for the field models of metallogenic information, including the metallogenic influence field model and the metallogenic distance field model, was discussed by introducing the concept of the field theory, based on the characteristic analysis of the distance gradualness and the influence superposition of metallogenic information. According to the field theory superposition principle and the spatial distance analysis method, the mathematical models for the metallogenic influence field and the metallogenic distance field of point, line and area geological bodies were derived out by using parameter equation and calculus. Based on the metallogenic background analysis, the metallogenic information field models of synsedimentary faults and manganese sedimentary basins were built. The relationship between the metallogenic information fields and the manganese mineralization distribution was also investigated by using the method of metallogenic information field analysis. The instance study indicates that the proposed method of metallogenic information field analysis is valid and useful for extracting the ore-controlling information of synsedimentary faults and manganese sedimentary basins in the study area, with which the extraction results are significant both statistically and geologically.
基金
Project(2006BAB01B07) supported by the National Science and Technology Pillar Program during the 11th Five-Year Plan Period of China
