Abstract The sedimentary cycle and strontium, carbon, oxygen isotopic characteristics of Silurian carbonate at Luguhu region in Ninglang County of western margin of Yangtze Platform are studied in this paper. The relationship between the isotopic curves and sea level changes and regional crustal uplifts is also discussed. The research results indicate that the Silurian is mainly composed of tidal carbonate sedimentary facies besides a small part of fine clastic sediments in the bottom. Its strontium, carbon and oxygen isotopic values vary in the range of 0.7093~0.7196, —1.280%~2.674‰ and -1.302‰~—10.713‰, respectively, and the average isotopic values are 0.7114, 0.984‰ and -7.810‰, respectively. Because it is influenced by the regional crustal uplift, the isotopic components and isotopic evolutionary curves are not closely related with global sea level changes during the Silurian.
About author: Li Zhongxiong, born in 1964, graduated from Chengdu University of Technology and received his Master degree in 1987. Now he is an associate research fellow in Chengdu Institute of Geology and Mineral Resources, and is engaged in sedimentology and palaeotological stratigraphy.
Cite this article:
Li Zhongxiong,Guan Shiping. SEDIMENTARY CYCLE AND STRONTIUM,CARBON,OXYGEN ISOTOPES OF THE SILURIAN AT LUGUHU REGION IN NINGLANG COUNTY OF WESTERN MARGIN OF YANGTZE PLATFORM[J]. JOPC, 2001, 3(4): 69-76.
Li Zhongxiong,Guan Shiping. SEDIMENTARY CYCLE AND STRONTIUM,CARBON,OXYGEN ISOTOPES OF THE SILURIAN AT LUGUHU REGION IN NINGLANG COUNTY OF WESTERN MARGIN OF YANGTZE PLATFORM[J]. JOPC, 2001, 3(4): 69-76.
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