Changes in the natural lead, cadmium, zinc, and copper concentrations in the Vostok Antarctic ice over the last two glacial-interglacial cycles (240,000 years) SCIE SCOPUS

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Title
Changes in the natural lead, cadmium, zinc, and copper concentrations in the Vostok Antarctic ice over the last two glacial-interglacial cycles (240,000 years)
Author(s)
Hong, S; Park, JK; Boutron, CF; Ferrari, CP; Petit, JR; Lipenkov, VY
Publication Year
2003-05
Abstract
We present new ice core records showing the temporal variation in the natural Pb, Cd, Zn, and Cu concentrations in the Vostok Antarctic ice over the past 240,000 years. Our data show that concentrations of these heavy metals have varied remarkably over the last two glacial-interglacial cycles. The concentrations ranged from 0.9 to 21.3, 0.04 to 0.62, 3.12 to 126, and 2.27 to 37.4 pg/g for Ph, Cd, Zn, and Cu, respectively. These profiles provide a better understanding of climate-related variation in the occurrence of these heavy metals in ancient Antarctic ice. The concentrations were much higher during cold glacial periods than during interglacials, and peaked at the coldest glacial stages. The contribution of rock and soil dust is estimated to be close to the measured concentrations of Pb, Zn, and Cu, but not Cd, in the ice during cold glacial periods.
ISSN
1155-4339
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5514
DOI
10.1051/jp4:20030382
Bibliographic Citation
JOURNAL DE PHYSIQUE IV, v.107, pp.629 - 632, 2003
Publisher
E D P SCIENCES
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
E D P SCIENCES
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