Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE ›› 2002, Vol. 13 ›› Issue (2-English): 137-144.

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Holocene environmental change according to lake core in Fildes Peninsula of King George Island, Antarctica

 Li Xiaomei1, Yuan Baoyin2 and Zhao Junlin3   

  1. 1 Institute of Environmental Sciences, Fujian Normal University, Fuzhou 350007, China;
    2 Institute of Geology and Geophysics, China Academy of Sciences, Beijing 100029, China;
    3 Institute of Environmental Sciences, Beijing Normal University, Beijing 100875, China
  • Online:1952-06-30 Published:1952-06-30
  • Contact: Li Xiaomei

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Abstract:

Lake core sampled from Xihu in Fildes Peninsula of King Gorge Island, Antarctica could reveal the environmental change of the district. The lake core ( GA7) , 9.28 meters long , was sectioned at an interval of 2 cm. Through measuring the organic carbon, magnetic susceptibility, granularity and organic carbon isotope of GA7, by use of 14C age it was estimated that there were four periods of high temperature in Fildes Peninsula; 4800-4400 aB. P., 3600-3350 aB. P., 2100 - 1800 aB. P. and 900 aB. P. - present. Meanwhile, results showed that there was a strikingly positive correlation between the content of organic carbon and that of organic carbon isotope (δCorg13) which could be the substitute indicators of environmental temperature.

Key words: Antarctica, Holocene, environmental change