Trace Element Variations in the Jianghan Basin: Response to the Water System Evolution of the Upper Yangtze River during the Early Pleistocene

Sheng Yuan Yuan; Guo Xi Wu

doi:10.4028/www.scientific.net/AMR.864-867.1025

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Trace Element Variations in the Jianghan Basin:...

Trace Element Variations in the Jianghan Basin: Response to the Water System Evolution of the Upper Yangtze River during the Early Pleistocene

Abstract:

According to the characteristics of constant order in sequential clustering method, it takes a layer division of vertical section of drilling sediment, by taking the 46 geochemical test sample in the Jianghan Plain Zhoulao drilling as the research objects and on the basis of mathematical theory of sequential clustering. Due to the implication function of the division results in sedimentation process and geomorphic evolution, it can be speculated that the sedimentation in the Jianghan Plain may reveal the four stages since 2.77~2.68 Ma B.P., 2.68~2.23 Ma B.P., 2.23~1.25Ma B.P. and 1.25 Ma B.P. to present which corresponds to the evolution process of the river system from unstable to mature. It suggests the drainage area becaming larger that the dispersion degree of the trace elements compositions of these samples became less, REE, Y, Th, U) and Th/Sc, Co/Th, La/Sc, Cr/Cu ratios become smaller in the Pleistocene.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

1025-1028

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.1025

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Online since:

December 2013

Authors:

Sheng Yuan Yuan*, Guo Xi Wu

Keywords:

Early Pleistocene, Jianghan Basin, Trace Element, Water System Evolution

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References

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