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本研究的目的是应用非线性理论和高新信息处理技术获取矿产资源预测综合信息,开展以有色金属和贵金属矿产资源潜力评价和预测靶区圈定,提交个旧及周边地区矿产资源潜力分布图.围绕该研究任务,重点开展了如何应用奇异性理论和方法,对比个旧东西矿区的异同.由于区域构造和岩体分布等空间变化性,导致东西区成矿背景存在较大差异,受出露地表或近地表矿体分布和矿山开采的影响,东西区的成矿异常强度和大小都存在较大差异,东区总体呈高背景而西区为低背景,因而,对东西区的成矿信息对比研究和异常圈定相对困难.采用局部奇异性分析方法从地球化学分形密度的角度圈定了局部异常,在东西区均较好地反映了致矿地球化学异常的分布,同时采用广义自相似分析方法分解了综合地球化学异常和背景.结果表明,东西区地球化学背景差异悬殊,而局部异常具有显著的自相似性.据此在东西区同时圈定的局部异常具有内在的相似性和表现形式上的多样性,以此为依据所圈定的靶区均具有找矿意义.
The purpose of this study is to apply non-linear theory and high-tech information processing technology to obtain the comprehensive information of mineral resources prediction, carry out the evaluation of potential mineral resources of non-ferrous metals and precious metals and predict the target area delineation, and submit the mineral resources potential distribution map of Gejiu and surrounding areas. Research tasks, focusing on how to apply the singularity theory and methods to compare the similarities and differences between Gejiu Dongxiu Mining Area.Due to the spatial variability of the regional structure and the distribution of the rock mass, there are great differences in the metallogenetic background between the eastern and western regions, The distribution of surface orebodies and the influence of mining, there is a great difference in the intensity and size of the ore-forming anomalies in the east and west regions, with the high level in the east and the low level in the west. Therefore, the contrast study and abnormal delineation It is relatively difficult to use local singularity analysis method to delineate local anomalies from geochemical fractal densities and reflect the distribution of ore-forming geochemical anomalies well in the east and west regions. At the same time, the generalized self-similarity analysis method is used to decompose the general geochemistry Anomaly and background.The results show that there are great differences in geochemical background between the eastern and western regions and the local anomalies Significant self-similarity. Thus something abnormal area while the delineation of local diversity inherent similarities and forms of expression, as a basis for the delineation of the target has prospecting significance.