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Late Quaternary high-resolution stratigraphic reconstruction of the East Sea sediment cores based on high resolution images and color parameters

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dc.contributor.authorPark, O.B.-
dc.contributor.authorNam, Seung-il-
dc.date.accessioned2018-03-20T13:20:25Z-
dc.date.available2018-03-20T13:20:25Z-
dc.date.issued2010-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/5955-
dc.description.abstractUsing the 3-CCD (charge-coupled device) line scan camera equipped within the Avaatech XRF-Core Scanner, high resolution images and color parameters were estimated from the 3 sediment cores (05GCRP-13, 14, 15), which were taken from the western margin of the East Sea. Based on the high resolution images and color parameters, a precise stratigraphy can be established for the 3 sediment cores. For the establishment of a precise stratigraphy, lightness values (L*), AMS 14C dating and 5 tephra layers deposited in the sediment core 05GCRP-15 are used to correlate with those data recorded in the core MD01-2407 which was retrieved from the Oki Ridge of the southeastern East Sea. According to the precise age model, the 3 investigated sediment cores are likely to represent the paleoceanographic record during the last about 94 ka BP (since the MIS 5.2). In particular, color parameters such L*, a* and b* can be used for the correlation between sediment cores recovered from the East Sea. Moreover, these color parameters are closely related with any chemical composition such as organic carbon and/or carbonate contents. Furthermore, the East Sea sediments that are characterized by alternations of dark and light layers seemed to well reflect the paleoceanographic changes during the late Quaternary glacial-interglacial cycles. These dark and light cycles on millennial scales are well matched the D-O (Dansgaard-Oeschger) cycles recorded in the NGRIP (North Greenland Ice Sheet Project) ice core δ18O data. As a result, the high resolution images together with color parameters can be used as a reliable proxy for establishing a precise stratigraphy as well as the paleoceanographic reconstruction in the East Sea during the late Quaternary.-
dc.languageKorean-
dc.subjectGeology-
dc.titleLate Quaternary high-resolution stratigraphic reconstruction of the East Sea sediment cores based on high resolution images and color parameters-
dc.title.alternative색지수 이미지를 이용한 후기 제 4기 동해 퇴적물 코어의 고해상 층서복원-
dc.typeArticle-
dc.identifier.bibliographicCitationPark, O.B., Lee, Mi Jung. 2010. "Late Quaternary high-resolution stratigraphic reconstruction of the East Sea sediment cores based on high resolution images and color parameters". <em>The Geological Society Of Korea</em>, 46(5): 439-452.-
dc.citation.titleThe Geological Society Of Korea-
dc.citation.volume46-
dc.citation.number5-
dc.citation.startPage439-
dc.citation.endPage452-
dc.description.articleClassificationKCI등재-
dc.description.jcrRateJCR 2008:0-
dc.subject.keywordsediment color-
dc.subject.keywordpaleoceanography/paleoclimate-
dc.subject.keywordlate Quaternary-
dc.subject.keywordNGRIP δ18O-
dc.subject.keywordD-O cycles-
dc.identifier.localId2010-0147-
Appears in Collections  
2010-2010, Korea Arctic Multidisciplinary Program [KAMP] - Arctic Climate and Environment Change - (10-10) / Lee, Bang Yong
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