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Diatom research from the Drake Passage Core Sediment (GC05-DP02), Antarctica

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dc.contributor.authorYoon, Ho Il-
dc.contributor.authorBak, Young-Suk-
dc.contributor.authorLee, Jae Il-
dc.contributor.author이성주-
dc.contributor.authorLee, Jong-Deock-
dc.coverage.spatialDrake Passage-
dc.date.accessioned2018-03-20T14:05:41Z-
dc.date.available2018-03-20T14:05:41Z-
dc.date.issued2010-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6644-
dc.description.abstractDiatom samples have been extracted from core sediment GC05-DP02 in Drake Passage, Antarctica. High number of diatom valves per gram of dry sediment was observed in core, ranging from 0.2 to 2.8 ×106/g. The open ocean diatoms from the core are dominated by Fragilariopsis kerguelensis and Thalassiosira lentiginosa which are about 69.8% of the total. We believe that there is little effect by the sea-ice even in the glacial periods, because high abundance of these Southern Ocean endemic taxa indicates sea-ice free waters. Diatom valve abundance and open ocean species are scarce in Unit B, D, F and H, identified as glacial periods (magnetic susceptibility: high). On the contrary, The Unit A, C, E, G and I shows high valve concentration and increasing open ocean species, identified as interglacial periods (magnetic susceptibility: low). The distribution pattern of Hemidiscus karstenii (FAO: 0.42 Ma (MIS 11), LAO: 0.19 Ma (MIS 7)) indicates interglacial periods during Marine Isotope Stages 7 and 9 in the Unit E and G, GC05-DP02.-
dc.languageKorean-
dc.subjectGeology-
dc.titleDiatom research from the Drake Passage Core Sediment (GC05-DP02), Antarctica-
dc.title.alternative남극 드레이크 해협 코어 퇴적물(GC05-DP02)에서 규조 연구-
dc.typeArticle-
dc.identifier.bibliographicCitationYoon, Ho Il, et al. 2010. "Diatom research from the Drake Passage Core Sediment (GC05-DP02), Antarctica". <em>The Geological Society Of Korea</em>, 46(6): 553-560.-
dc.citation.titleThe Geological Society Of Korea-
dc.citation.volume46-
dc.citation.number6-
dc.citation.startPage553-
dc.citation.endPage560-
dc.description.articleClassificationKCI등재-
dc.description.jcrRateJCR 2008:0-
dc.subject.keywordDrake Passage-
dc.subject.keyworddiatom-
dc.subject.keywordinterglacial-
dc.subject.keywordglacial-
dc.subject.keywordHemidiscus karstenii-
dc.identifier.localId2011-0066-
Appears in Collections  
2009-2010, Reconstruction of paleoclimate and paleoceanography of polar regions to understand the response of future global warming (09-10) / Lee, Jae Il (PE09010, PE10010)
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