Reconstruction of nonlinear geochemical dynamics of elemental sedimentation based on power spectral analysis of time sequence

被引:7
作者
Zhou, YZ [1 ]
机构
[1] Zhongshan Univ, Dept Geosci, Guangzhou 510275, Peoples R China
来源
MATHEMATICAL GEOLOGY | 1999年 / 31卷 / 06期
关键词
spectral analysis; maximum entropy; sedimentation periodicity; elemental sedimentary geochemistry;
D O I
10.1023/A:1007584511667
中图分类号
P [天文学、地球科学];
学科分类号
07 [理学];
摘要
Maximum entropy spectral analysis and multidimensional cross-spectral analysis are two important tools for studying periodicity of elemental sedimentation in strata. They are applied to the study of the Devonian lensoid limestone formation in the Nandan-Hechi basin of Guangxi, China. Results show that all major element oxides of the sedimentary formation display a consistent change period of about 4 m; however, elements do not change in step. Nonlinear geochemical dynamic processes of elemental sedimentation through sea-floor fluids may be effectively reconstructed based on power spectral analyses.
引用
收藏
页码:723 / 742
页数:20
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