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Deglacial environments in the northeastern of South Shetland Islands, Antarctica: evidence from the high resolution diatom record

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dc.contributor.authorBak, Young-Suk-
dc.contributor.author이성주-
dc.contributor.authorLee, Jae Il-
dc.contributor.authorLee, Jong-Deock-
dc.contributor.author김향주-
dc.contributor.authorYoon, Ho Il-
dc.contributor.authorYoo, Kyu-Cheul-
dc.coverage.spatialSouth Shetland Islands-
dc.coverage.spatialElephant Island-
dc.date.accessioned2018-03-20T14:05:36Z-
dc.date.available2018-03-20T14:05:36Z-
dc.date.issued2011-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6641-
dc.description.abstractA total of 70 species and varieties belonging to 31 genera are identified from 300~350 cm horizons of the Core GC03-C1 in the South Shetland Islands, Antarctic Peninsula. High number of diatom valves per gram of dry sediment was observed in core, ranging from 0.7~6.1×10^7/g. The Holocene diatom assemblages from the core are dominated by Fragilariopsis kerguelensis and Eucampia antarctica which are about 45.7% of the total. Three diatom subzones are identified on the basis of frequency of the index species throughout the section: diatom assemblage subzone I-a from 350 to 331 cm (late Last Glacial Maximum), diatom assemblage subzone I-b from 330 to 313 cm (deglaciation) and diatom assemblage subzone II-a from 312 to 300 cm (early Holocene). The paleoenvironmental conditions from the late LGM to early Holocene can be subdivided into three intervals based on diatom assemblages: 1) diatom assemblage subzone I-a condition with persistent seasonal sea-ice cover and summer upwelling of Antarctic Circumpolar Deep Water, 2) diatom assemblage subzone I-b condition with collapse of land glaciers and influx of meltwater with increasing warming, and 3) diatom assemblage subzone II-a open ocean conditions more affected by Antarctic Circumpolar Current.-
dc.languageKorean-
dc.subjectGeology-
dc.titleDeglacial environments in the northeastern of South Shetland Islands, Antarctica: evidence from the high resolution diatom record-
dc.title.alternative남 쉐틀랜드 군도 북동쪽 대륙대 코어 퇴적물에 나타나는 해빙기에 대한 고해상 규조분석 연구-
dc.typeArticle-
dc.identifier.bibliographicCitationBak, Young-Suk, et al. 2011. "Deglacial environments in the northeastern of South Shetland Islands, Antarctica: evidence from the high resolution diatom record". <em>The Geological Society Of Korea</em>, 47(4): 363-369.-
dc.citation.titleThe Geological Society Of Korea-
dc.citation.volume47-
dc.citation.number4-
dc.citation.startPage363-
dc.citation.endPage369-
dc.description.articleClassificationKCI등재-
dc.description.jcrRateJCR 2009:0-
dc.subject.keywordSouth Shetland Islands-
dc.subject.keywordElephant Island-
dc.subject.keyworddiatom assemblage subzone-
dc.subject.keywordpaleoenvironmental-
dc.identifier.localId2011-0255-
Appears in Collections  
2010-2013, Monitoring of abrupt environmental change in the ice shelf system and reconstruction of Quaternary deglaciation history in West Antarctica (10-13) / Yoon, Ho Il (PP10060, PP10080, PP11010, PP12020, PP13010)
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