Abstract
Marine isotope stages (MISs) 1 to 5 were identified in the planktonic δ18O record in sediment core DP00-02 just south of the Antarctic Polar Front in the Drake Passage, Antarctica. The oxygen isotope record, based on Neogloboquadrina pachyderma sinistral, is correlated with the contemporaneous global δ18O stratigraphy. Marked deviations from the global climate curve suggest a local/regional overprint, particularly during MIS 3 which is considered a colder time period in the ocean record than MIS 1 and MIS 5 during the last interglacial. The comparison shows that negative δ18O shifts in core DP00-02 during MIS 3 are larger than mean global changes which show a shift equal to or smaller than 0.5‰. The isotope shift, exceeding the glacial-interglacial ice volume effect, probably resulted from changes in the isotope composition of seawater, which is linearly related to decreases in salinity rather than to increases in sea-surface temperature. Increased ice-rafted debris (IRD) content during this interval indicates a strong influx of IRD from melting ice shelves and icebergs, which may be related to upwelling of warmer circumpolar deep water.
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09 June 2020
This article [1] has been retracted at the request of the Editors-in-Chief because it has been previously published by Bae, S.H., Yoon, H.I., Park, B. et al [2]. This article is therefore redundant.
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Acknowledgements
The captain and crew of the R/V Yuzhmorgeologiya are gratefully acknowledged for cooperation during KARP (Korea Antarctic Research Program) cruise 2000/2001. We also thank Prof. Burg Flemming, Dr. Bernhard Diekmann and an anonymous reviewer for numerous constructive suggestions for the improvement of the manuscript. This research was carried out mainly under KORDI (Korea Ocean Research and Development Institute) grant PP03106, and funded substantially by the National Research Laboratory program PN47500 and the International Joint R & D Project (Korea-Russia) PN47800 of the Ministry of Science and Technology, Korea.
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This article has been retracted at the request of the Editors-in-Chief because it has been previously published by Bae, S.H., Yoon, H.I., Park, B. et al (2003). This article is therefore redundant. Yeadong Kim agrees to this retraction; Sung Ho Bae, Hi Il Yoon and Byong-Kwon Park have not responded to any correspondence from the editor/publisher about this retraction.
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Bae, S.H., Yoon, H.I., Park, BK. et al. RETRACTED ARTICLE: Late Quaternary stable isotope record and meltwater discharge anomaly events to the south of the Antarctic Polar Front, Drake Passage. Geo-Mar Lett 23, 110–116 (2003). https://doi.org/10.1007/s00367-003-0129-y
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DOI: https://doi.org/10.1007/s00367-003-0129-y