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Late Quaternary glacial-interglacial variations in sediment supply in the southern Drake Passage

Cited 8 time in wos
Cited 7 time in scopus
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dc.contributor.authorLee, Jae Il-
dc.contributor.authorDonghyun Kim-
dc.contributor.authorYoo, Kyu-Cheul-
dc.contributor.authorTakuya Itaki-
dc.contributor.authorBak, Young-Suk-
dc.contributor.authorYong Il Lee-
dc.contributor.authorLim, Hyoun Soo-
dc.contributor.authorYoon, Ho Il-
dc.coverage.spatialAntarctica-
dc.coverage.spatialDrake Passage-
dc.coverage.spatialSouth Shetland Islands-
dc.coverage.spatialSouthern Ocean-
dc.coverage.spatialWeddell Sea-
dc.date.accessioned2018-03-20T13:38:13Z-
dc.date.available2018-03-20T13:38:13Z-
dc.date.issued2012-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6028-
dc.description.abstractGeochemical characteristics of marine sediment from the southern Drake Passage were analyzed to reconstruct variations in sediment provenance and transport paths during the late Quaternary. The 5.95 m gravity core used in this study records paleoenvironmental changes during the last approximately 600 ka. Down-core variations in trace element, rare earth element, and Nd and Sr isotopic compositions reveal that sediment provenance varied according to glacial cycles. During glacial periods, detrital sediments in the southern Drake Passage were mostly derived from the nearby South Shetland Islands and shelf sediments. In contrast, interglacial sediments are composed of mixed sediments, derived from both West Antarctica and East Antarctica. The East Antarctic provenance of the interglacial sediments was inferred to be the Weddell Sea region. Sediment input from the Weddell Sea was reduced during glacial periods by extensive ice sheets and weakened current from the Weddell Sea. Sediment supply from the Weddell Sea increased during interglacial periods, especially those with higher warmth such as MIS 5, 9, and 11. This suggests that the influence of deep water from the Weddell Sea increases during interglacial periods and decreases during glacial periods, with the degree of influence increasing as interglacial intensity increases.-
dc.languageEnglish-
dc.publisherElsevier-
dc.subjectPhysical Geography-
dc.subjectGeology-
dc.titleLate Quaternary glacial-interglacial variations in sediment supply in the southern Drake Passage-
dc.typeArticle-
dc.identifier.bibliographicCitationLee, Jae Il, et al. 2012. "Late Quaternary glacial-interglacial variations in sediment supply in the southern Drake Passage". <em>QUATERNARY RESEARCH</em>, 78(1): 119-129.-
dc.citation.titleQUATERNARY RESEARCH-
dc.citation.volume78-
dc.citation.number1-
dc.identifier.doi10.1016/j.yqres.2012.03.010-
dc.citation.startPage119-
dc.citation.endPage129-
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2010:23.809523809523807-
dc.subject.keywordAntarctica-
dc.subject.keywordDrake Passage-
dc.subject.keywordProvenance-
dc.subject.keywordQuaternary-
dc.subject.keywordsediment-
dc.identifier.localId2012-0337-
dc.identifier.scopusid2-s2.0-84862589217-
dc.identifier.wosid000306096200012-
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
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