High-resolution cyclostratigraphy of geochemical records from Permo-Triassic boundary section of Dongpan,southwestern Guangxi,South China

查看全文 作　　者：PENG [1]XingFang;FENG [1]QingLai;Li [2]ZhouBo;MENG [3]YouYan

机构地区：[1]MOE Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Wuhan 430074,China;[2]Faculty of Mathematics and Physics,China University of Geosciences,Wuhan 430074,China;[3]Guangxi Geological Survey Research Institute,Nanning 530031,China

出　　处：《Science China Earth Sciences》索引2008年第51卷第2期,共7页

基　　金：the National Natural Science Foundation of China (Grant No. 40621002);Program for Changjiang Scholar and Innovative Research Team in University (Grant No. 20060491502) 摘　　要：Spectral analysis is applied to geochemical data from a deep-water Permian-Triassic Boundary (PTB) section across PTB in Dongpan, Guangxi for high-resolution cyclostratigraphic research. The characteristics of the Milankovitch Cycles have been well recorded in the strata of the Dongpan section. Spectrum on Ce/La records shows especially that the ratios among its three preponderant cycles in the section are 5:2:1, which well displays the phenomenon of the sedimentary cycles driven by orbital force. The Milankovitch theory is further confirmed by the Paleozoic records. 关键词：spectral analysis P/T BOUNDARY geochemistry CYCLOSTRATIGRAPHY GUANGXI

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High-resolution cyclostratigraphy of geochemical records from Permo-Triassic boundary section of Dongpan,southwestern Guangxi,South China

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