Fractal Software System Used In Tungsten Forecast Of Dajishan

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. Appended a new module which use content-amount method to process geochemical exploration data. There are seven cores in this software: data preprocessing, fractal dimension calculation, geochemical anomalous threshold, grid data , multifractal spectrum and fractal scale contrast.Using multifractal spectrum method to process geochemical exploration data can commendably depict data distribution, very 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. New method explained the defect of the multifractal spectrum method, that is EII and EEI not exactly conform to the actul geochemical exploration data. The new method solved this problem.To sum up, the content-amount fractal scale contrast and 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 threshold conveniently. This software is a utility tool in data processing of exploration geochemistry.