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Diatom Succession Representing the Paleoclimatic Change from Laminated Sediments around Antarctica

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dc.contributor.authorBak, Young-Suk-
dc.contributor.authorYoon, Ho Il-
dc.contributor.authorYoo, Kyu-Cheul-
dc.contributor.authorLee, Young-Up-
dc.coverage.spatialBransfield-
dc.coverage.spatialBransfield Strait-
dc.coverage.spatialBransfield Strait-
dc.date.accessioned2017-08-03T14:07:53Z-
dc.date.available2017-08-03T14:07:53Z-
dc.date.issued2015-
dc.description.abstractThis study investigated the paleoclimatic change using diatoms that were extracted from the high-resolution laminated layers of diatom ooze sediment cores GC08-EB01 in the eastern basin of the Bransfield Strait, Antarctica. The range of diatom valves per gram of dry sediment was from 0.4 to 4.2×10<sup>8</sup> g-<sup>-1</sup> in quantitative diatom assemblage analysis. Laminations are classified using visually dominant diatom species and terrigenous content. Biogenic diatom ooze laminae characterised by bloom of <em>Corethron crilophilum, Eucampia antarctica, Fragilariopsis curta, F. kerguelensis</em>, <em>Odontella weissflogii, Proboscia inermis, R. styliformis, Thalassiosira antarctica,</em> and <em>Chaetoceros resting spores.</em> Terrigenous laminae characterised by mixed diatom assemblage. The ratio of (<em>Fragilariopsis curta</em>+<em>F</em>. <em>cylindrus</em>)/<em>Thalassiosira antarctica</em> increase in horizons, suggesting increased sea-ice cover in the study area during the late Holocene (cold events). As a result, five cold events are identified on the basis of frequency of the critical taxa throughout the section.-
dc.languageKorean-
dc.subjectEnvironmental Sciences & Ecology-
dc.titleDiatom Succession Representing the Paleoclimatic Change from Laminated Sediments around Antarctica-
dc.typeArticle-
dc.identifier.bibliographicCitationBak, Young-Suk, et al. 2015. "Diatom Succession Representing the Paleoclimatic Change from Laminated Sediments around Antarctica". <em>Journal of Earch Science Society</em>, 36: 190-197.-
dc.citation.titleJournal of Earch Science Society-
dc.citation.volume36-
dc.citation.page190-197.-
dc.identifier.doi10.5467/JKESS.2015.36.2.190-
dc.coverage.x62º02.0'S-
dc.coverage.y56º13.0'W-
dc.coverage.z796cm-
dc.subject.keywordDiatom-
dc.subject.keywordBransfield Strait-
dc.subject.keywordBiogenic diatom laminae-
dc.subject.keywordTerrigenous laminae-
dc.subject.keywordCold events-
dc.coverage.degreeX-62.0333333333333-
dc.coverage.degreeY-56.2166666666667-
Appears in Collections  
2014-2016, Monitoring of Abrupt Environmental Change in The Ice Shelf System and Reconstruction of Quaternary Deglaciation History in West Antarctica (14-16) / Yoon; Ho Il
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