| High-resolution cyclostratigraphy of geochemical records from Permo-Triassic boundary section of Dongpan,southwestern Guangxi,South China |
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| 基金项目： | the National Natural Science Foundation of China (Grant No. 40621002)，Program for Changjiang Scholar and Innovative Research Team in University (Grant No. 20060491502) |
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| 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.
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| 收稿时间： | 10 June 2007 |
| 修稿时间： | 24 October 2007 |
High-resolution cyclostratigraphy of geochemical records from Permo-Triassic boundary section of Dongpan, southwestern Guangxi, South China |
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| Authors: | Peng XingFang Feng QingLai Li ZhouBo and Meng YouYan |
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| Institution: | (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 |
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| Abstract: | 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. |
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| Keywords: | spectral analysis P/T boundary geochemistry cyclostratigraphy Guangxi |
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