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《Journal of Stratigraphy》 2002-02
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STRATIGRAPHICAL SIGNIFICANCE OF THE STRONTIUM ISOTOPIC CURVE OF THE UPPER PALEOZOIC OF SICHUAN AND GUIZHOU

SHI He 1) , HUANG Si jing 2) , SHEN Li cheng 2) , and ZHANG Meng 2) ( 1) Chengdu University of Technology, Chengdu, 610059; 2) State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu, 610059)  
The variation of the strontium isotopic composition in seawater during the geological history was mainly controlled by these factors such as the global variation of the sea level, the plate interaction and the seafloor spreading. This paper sets up a curve of the strontium isotopic composition of the Late Paleozoic based on 92 unaltered marine carbonate samples collected from Sichuan and Guizhou. The fairly high similarity between this curve and other coeval curves sets up by some foreign scholars in other regions abroad, exhibits important stratigraphical significance. This paper discussed the division and correlation of the Upper Paleozoic Strata of Sichuan and Guizhou, the relationship between global variation of the sea level and local transgression regression, based on the strontium isotope curve of the Upper Paleozoic Strata of Sichuan and Guizhou.
【Fund】: 国家自然科学基金项目“上扬子古生代海相碳酸盐的锶同位 素组成及主要控制因素”(批准号 :No.49972 0 44)
【CateGory Index】: P534.4
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