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Glacial-interglacial changes in the occurrence of Pb, Cd, Cu and Zn in Vostok Antarctic ice from 240 to 410 kyr BP

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Title
Glacial-interglacial changes in the occurrence of Pb, Cd, Cu and Zn in Vostok Antarctic ice from 240 to 410 kyr BP
Other Titles
남극보스톡빙하에서 24만 년전부터 41만 년전까지 기후변화에 따른 납, 카드뮴, 구리, 아연의 농도 변화 연구
Authors
C.F. Ferrari
Lee, Khanghyun
G. Capodaglio
Hong, Sung-Min
J.R. Petit
P. Gabrielli
Hur, Soon Do
C. Barbante
C. Boutron
C. Turetta
Keywords
Antarctic ice; Climatic changes; Heavy metals; Vostok ice core
Issue Date
2005
Citation
C.F. Ferrari, et al. 2005. "Glacial-interglacial changes in the occurrence of Pb, Cd, Cu and Zn in Vostok Antarctic ice from 240 to 410 kyr BP". Journal of Environmental Monitoring(1): 1326-1331.
Abstract
Lead (Pb), cadmium (Cd), copper (Cu) and zinc (Zn) have been measured by Electrothermal Atomic Absorption Spectrometry in various sections of the 3623 m deep ice core drilled at Vostok, in central East Antarctica. The sections were dated from 240 to 410 kyr BP (Marine Isotopic Stages (MIS) 7.5 to 11.3), which corresponds to the 3rd and 4th glacial-interglacial cycles before present. Concentrations are found to have varied greatly during this 170 kyr time period, with high concentration values during the coldest climatic stages such as MIS 8.4 and 10.2 and much lower concentration values during warmer periods, such as the interglacials MIS 7.5, 9.3 and 11.3. Rock and soil dust were the dominant sources for Pb, whatever the period, and for Zn and Cu and possibly Cd during cold climatic stages. The contribution from volcanic emissions was important for Cd during all periods and might have been significant for Cu and Zn during warm periods.
URI
http://repository.kopri.re.kr/handle/201206/6619
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