Multifractal Detrended Cross-Correlation Analysis of Geochemical Element Concentration

Wan Li, Yongqian Zhu, Xiaocheng Deng, Jiaoxiu Lin
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引用次数: 0

Abstract

We use multifractal detrended cross -fluctuation analysis (MF-DXA) to investigate nonlinear behavior of geochemical element concentration, Au-Cu-Pb-Zn-Ag, in Shangzhuang Deposit, Shandong Province, China. We find that the generalized Hurst exponent h(q) and cross-correlation exponent h xy (q) decrease with the increase of q, which indicate that all element concentration series and their cross pairs exhibit multifractal phenomena. By comparing the variability of h(q) and h xy (q), we have found that the multifractal behavior is more obvious when q > 0 than q < 0 for the element Au- Cu-Pb-Zn and their cross pairs. These analyses, given quantitative information about the complexity of the element concentration, lead to a better understanding of the geochemical phenomena underlying mineralization process.
地球化学元素浓度的多重分形去趋势互相关分析
利用多重分形去趋势交叉波动分析(MF-DXA)研究了山东上庄矿床地球化学元素Au-Cu-Pb-Zn-Ag浓度的非线性行为。发现广义Hurst指数h(q)和互相关指数h(xy)随q的增大而减小,表明各元素浓度序列及其交叉对呈现多重分形现象。通过比较h(q)和h xy (q)的变异性,发现Au- Cu-Pb-Zn元素及其交叉对在q > 0时的多重分形行为比q < 0时更为明显。这些分析提供了有关元素浓度复杂性的定量信息,有助于更好地理解成矿过程下的地球化学现象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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