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A 200-ka carbon isotope record from the South China Sea
作者姓名:LI  Jianru  WANG  Pinxian
作者单位:State Key Laboratory of Marine Geology, Tongji University, Shanghai200092, China
基金项目:Acknowledgements Prof. Jian Zhimin and Dr. Tian Jun are thanked for providing some carbon isotope data, Prof. Li Qianyu is thanked for improving the English text. This work was supported by the National Key Basic Research Special Foundation of China (Grant No. G2000078500).
摘    要:Stable isotope of autogenous oceanic carbonate (e.g., calcite of foraminiferal shells) has become a basic tracer in paleoceanography. Oxygen isotope composi-tion (δ 18O) is generally controlled by factors, such as ice volume and water temperature, and is…

关 键 词:碳同位素  华南地区  碳循环  第四纪
收稿时间:2006-03-21
修稿时间:2006-03-212006-05-16

A 200-ka carbon isotope record from the South China Sea
LI Jianru WANG Pinxian.A 200-ka carbon isotope record from the South China Sea[J].Chinese Science Bulletin,2006,51(14):1780-1784.
Authors:Jianru Li  Pinxian Wang
Institution:(1) State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China
Abstract:A stacked ocean carbon isotope (δ 13C) record of 200 ka is established on the basis of planktonic foraminifer (Globigerinoides ruber) δ 13C data from 8 sites in the South China Sea (SCS). The δ 13C record from the SCS displays a trend similar to that from the Pacific and Atlantic oceans mainly responding to long eccentricity and precession cycles, with all the three δ 13C minima occurring at glacial terminations. Thus, the changes of the oceanic carbon reservoir in glacial cycles should not be considered as a response only to ice-sheet variations, but could have been driven also by low latitude processes, such as the monsoon.
Keywords:South China Sea  carbon isotope  carbon cycle  late Qua-ternary  
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