Software System Design Of Geochemical Data Processing

The research of the law of geochemical elements distribution is important to realize the law of enrichment and spatial variation of elements. The statistic character of geochemical data is often used to describe the law of geochemical elements distribution. However, the general statistic methods can not distinguish the spatial distribution of the elements and the variation of statistic character with different scale, but the fractal methods can overcome those defects. With the increasing number of fractal methods being used in the geochemical data processing, a software system which is integrated many useful fractal methods is definitely significant to scientific research and practice.In this paper, the main fractal methods in geochemical data processing are generalized, and the specific design of a software system which is designed by C++ programming language in Windows operation system is introduced. There are five cores in this software: data preprocessing, fractal dimension calculation, geochemical anomalous threshold, grid data and multifractal spectrum.Fourteen multifractal spectrum graphs about element enrichment model are produced by the software introduced above, and every parameter of the multifractal spectrum is analyzed specifically, and two new indexes EEI(Enrichment Efficiency Index) and EII(Enrichment Intensity Index) are invented from the characters of multifractal spectrum graph. The multifractal spectrums of geochemical exploration data in Nanling region with the scale of 1:50000 and 1:200000 and in Dajishan mining district in Jiangxi province with the scale of 1:50000 are calculated and compared with the spectrums of the numerical models. In the end, the law of element enrichment in three regions is summarized from the indexes of the multifractal spectrum, and the outcome is satisfying.To sum up, the multifractal spectrum can describe the distribution character of geochemical data finely. By using the software introduced in this paper, we can produce multifractal spectrum graph, the frequency distribution graph and disperse dot graph of fractal methods and obtain grid data and geochemical anomalous...