基于Hurst指数的矿化强度识别－以山东大尹格庄金矿为例

Journal of Jilin University(Earth Science Edition)

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Identification of Mineral Intensity Based on Hurst Index in Dayin’gezhuang Gold Deposit, Shandong Province, China

Wan Li^1,2, Deng Xiaocheng^1,2, Wang Qingfei^3,4, Liu Huan^3,4

1.School of Mathematics and Information Science, Guangzhou University, Guangzhou510006, China;
2.Key Laboratory of Mathematics and Interdisciplinary Sciences of Guangdong Higher Education Institutes, Guangzhou University， Guangzhou510006, China;
3.State Key Laboratory of Geological Processes and Mineral Resources，China University of Geosciences, Beijing100083, China;
4.Key Laboratory of Lithosphere Tectonics and Lithoprobing Technology of Ministry of Education,China University of Geosciences, Beijing100083, China

Received:2012-07-10 Online:2013-01-26 Published:2013-01-26

Abstract

Abstract:

Studying the rules of metallogenic elements fractal distribution is an important method to illustrate the mineralization enrichment.The method of rescaled range analysis (R/S) was applied to study the variation trend with the sampling scale, and to explore into the relationship between Hurst index and mineralized intensity, in the drifts on -210 m level of Dayin’gezhuang gold deposit in the Jiaodong gold province, China. The results show that there exists obvious differences among the Hurst indices of Au grade sequence, greater than 0.5, and the Hurst indeices are greater than 0.65 in parts with continuous mineralization or discontinuous ones concentrated. These indicate that the sequence of the stochastic process is of scale invariant and long-range correlations, and the continued strength of the sequence is consistent with the mineralization, which can provide a new effective method for quantitative identification of regional metallogenic strength.

Key words: metallogenic elements, fractals, scale invariance, rescaled range analysis, Hurst index, long-range correlation, gold deposits

CLC Number:

P628

Wan Li, Deng Xiaocheng, Wang Qingfei, Liu Huan. Identification of Mineral Intensity Based on Hurst Index in Dayin’gezhuang Gold Deposit, Shandong Province, China[J].Journal of Jilin University(Earth Science Edition), 2013, 43(1): 87-92.

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