The Calculation of Fractal Model’s Non-Scale Range

Abstract:

Application of fractal method to establish geological data fractal model is an important way to identify geological anomaly. Using derivative identification method, it can divide the fractal model’s non-scale range respectively. It determines the abnormal areas according to the abnormal lower limit value. In this paper, the geological data of Au element is calculated by "C-A" fractal model in Mohe Heilongjiang province. On the same non-scale range the double logarithmic fitting curve has the similar local slope and the second-order derivative of this curve within the same non-scale range could be slightly fluctuate near zero. Using the threshold , the non-scale ranges can be identified by this method. The abnormal lower limit value identified by this method is lesser than the artificial recognition method. On the Matlab software platform to calculate Au abnormal areas’ dimension value is 2.65, and the element abnormal lower limit value is 2.9. The abnormal areas delineated by this abnormal lower limit value contain all the gold ore sites we have known.

• Periodical: Advanced Materials Research (Volume 569)
• Pages: 88-94
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.569.88
• Online since: September 2012
• Authors: Xu Jiu Yan, Lin Fu Xue, Wen Qing Li
• Keywords: Abnormal Lower Limit Value, Derivative Identification Method, Fractal Model, Non-Scale Range

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