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《Journal of Stratigraphy》 2003-01
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STRONTIUM ISOTOPE COMPOSITION OF THE CAMBRIAN LUOJIAGUO SECTION IN XIUSHAN, CHONGQING AND ITS STRATIGRAPHIC SIGNIFICANCE

SHI He 1), HUANG Si-jing 2), SHEN Li-cheng 2), and ZHANG Meng 2) ( 1) Geoscience Institute, Chengdu University of Technology, Chengdu, 610059;2) State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu, 610059)  
The Sr-isotopic stratigraphy is a part of the chemostratigraphy. Its fundamental principle is introduced briefly in this paper. According to the analysis results of strontium isotope of marine carbonate samples collected from the Cambrian section in Xiushan, the Sr-isotope curve of this section is set up using the data with relatively low 87Sr/ 86Sr ratio is correlated with 2 coeval other curves set up by Denison et al. (1998) and Gao G et al. (1991). They are consistent. Some positions of key chronostratigraphic boundaries about the Xiushan section were suggested and the global variation of the sea level during the Cambrian period was discussed briefly.
【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)资助。
【CateGory Index】: P534.41
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