Late Pleistocene dark laminated mud layers from the Korea Plateau, western East Sea/Japan Sea, and their paleoceanographic implications SCIE SCOPUS

DC Field Value Language
dc.contributor.author Khim, B. K. -
dc.contributor.author Bahk, J. J. -
dc.contributor.author Hyun, S. -
dc.contributor.author Lee, G. H. -
dc.date.accessioned 2020-04-20T11:55:33Z -
dc.date.available 2020-04-20T11:55:33Z -
dc.date.created 2020-01-28 -
dc.date.issued 2007-04 -
dc.identifier.issn 0031-0182 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/4706 -
dc.description.abstract A variety of approaches were applied to a 11.1-m-long sediment core (EBP-4) from the Korea Plateau, one of the bathymetric highs in the western part of the East Sea/Japan Sea, to understand late Pleistocene paleoenvironmental change. The chronostratigraphy of the core was established using a radiocarbon age, dark laminated mud (DLM) layers with known ages, the oxygen isotope (delta O-18) curve of planktonic foraminifera, biogenic opal and total organic carbon (TOC) contents, downcore changes in the carbon/nitrogen (C/N) ratio as well as their isotopic ratio (delta C-13 and delta N-15) in organic matter. Although interrupted by several pumice lapilli layers, the core bottom represents marine isotope stage (MIS) 8, and spans more than 250 kyr of paleoceanographic history of the western East Sea/Japan Sea. Paleoenvironmental conditions during MIS 2 and MIS 6 are clearly distinguishable, represented by the negative shift of delta O-18 values of planktonic foraminifera, resulting from surface-water freshening due to basin isolation caused by eustatic sea-level lowering. The corresponding dark laminated mud (DLM I, IIa, IIb and III) layers formed during glacial maxima are characterized by strong Mo and total sulfur (TS) enrichment in anoxic conditions, which indicates a stagnant and strongly-stratified water-column structure. Biogenic opal contents can be a useful indicator to confirm the chronostratigraphic assessment, and can also identify periods of high surface-water productivity in the East Sea/Japan Sea particularly during interglacial times. In contrast, glacial paleoproductivity might be low, compared to the interglacial because of insufficient nutrient availability, resulting from limited vertical ventilation. The delta C-13 and delta N-15 values of sedimentary organic matter also emphasize increased terrestrial input during the glacial maxima, exhibiting highly depleted delta C-13 and delta N-15 values in all DLM layers. Sea-level induced paleoenvironmental changes associated with glacial-interglacial variations are identified from the Korea Plateau, confirming these events Occurred throughout the whole East Sea/Japan Sea. (C) 2007 Elsevier B.V. All rights reserved. -
dc.description.uri 1 -
dc.language English -
dc.publisher ELSEVIER SCIENCE BV -
dc.title Late Pleistocene dark laminated mud layers from the Korea Plateau, western East Sea/Japan Sea, and their paleoceanographic implications -
dc.type Article -
dc.citation.endPage 87 -
dc.citation.startPage 74 -
dc.citation.title PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY -
dc.citation.volume 247 -
dc.citation.number 1-2 -
dc.contributor.alternativeName 현상민 -
dc.identifier.bibliographicCitation PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v.247, no.1-2, pp.74 - 87 -
dc.identifier.doi 10.1016/j.palaeo.2006.11.029 -
dc.identifier.scopusid 2-s2.0-33947713916 -
dc.identifier.wosid 000246086100008 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus LAST GLACIAL MAXIMUM -
dc.subject.keywordPlus SEDIMENTARY ORGANIC-MATTER -
dc.subject.keywordPlus YOUNGER DRYAS EVENT -
dc.subject.keywordPlus ULLEUNG BASIN -
dc.subject.keywordPlus ISOTOPIC COMPOSITIONS -
dc.subject.keywordPlus MARINE-SEDIMENTS -
dc.subject.keywordPlus 36 KYR -
dc.subject.keywordPlus NITROGEN -
dc.subject.keywordPlus CARBON -
dc.subject.keywordPlus OCEAN -
dc.subject.keywordAuthor laminated mud -
dc.subject.keywordAuthor paleoceanography -
dc.subject.keywordAuthor paleoclimate -
dc.subject.keywordAuthor stable isotope -
dc.subject.keywordAuthor anoxic condition -
dc.subject.keywordAuthor Late Pleistocene -
dc.subject.keywordAuthor East Sea/Japan Sea -
dc.relation.journalWebOfScienceCategory Geography, Physical -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.relation.journalWebOfScienceCategory Paleontology -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Physical Geography -
dc.relation.journalResearchArea Geology -
dc.relation.journalResearchArea Paleontology -
Appears in Collections:
Marine Resources & Environment Research Division > Marine Environment Research Department > 1. Journal Articles
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