The calculation of fractal models non-scale range
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 models 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 λ, 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.
Fractal Model Non-Scale Range Derivative Identification Method Abnormal Lower Limit Value
Yan Xu jiu Xue Lin fu Li Wen qing
College of Earth Sciences, Jilin University, Changchun 130061, China Jilin land resources surveying College of Earth Sciences, Jilin University, Changchun 130061, China
国际会议
厦门
英文
88-94
2012-06-05（万方平台首次上网日期，不代表论文的发表时间）