Age of the SKP-I and SKP-II tephras from the southern East Sea/Japan Sea: Implications for interstadial events recorded in sediment from marine isotope stages 3 and 4 SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Chun, J.-H. | - |
dc.contributor.author | Cheong, D. | - |
dc.contributor.author | Ikehara, K. | - |
dc.contributor.author | Han, S.-J. | - |
dc.date.accessioned | 2020-04-20T11:55:36Z | - |
dc.date.available | 2020-04-20T11:55:36Z | - |
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/4712 | - |
dc.description.abstract | The ages of two newly identified tephras in marine oxygen isotope stages (MIS) 3 and 4 from the southern East Sea/Japan Sea (ES/JS) have been determined. Analysis of chemical composition, grain-size distribution, sediment texture, and pumice micromorphology of material from 24 marine sediment cores was combined with a high-resolution age model established for core MD01-2407. The marine sedimentary record of the ES/JS is characterized by a drastic, millennium-scale variation in paleoceanographic conditions that is closely linked to Dansgaard-Oeschger (D-O) events. The chemical composition of the two tephras, which are stratigraphically located between previously dated AT (29.24 ka) and Aso-4 (88 ka) tephras, varies from phonolitic to trachytic (57.11-62.87 wt% SiO2 with 5.03-6.81 wt% K2O and 6.32-9.87 wt% Na2O). They exhibit a conspicuously bimodal grain-size distribution, and have randomly oriented vesicles with thick walls. The dispersal patterns of these tephras differ markedly from that of the U-Oki tephra, which is originated from a subaerial eruption on Ulleung Island. The two newly identified tephras, named SKP-I and SKP-II, reach their maximum thickness and grain-size at a location near the South Korea Plateau (SKP). An age model for a core from the Oki Ridge (MD01-2407) yields eruptive ages of about 40-41 ka for the SKP-I tephra and about 60-61 ka for the SKP-II tephra. A comparison of sediment lightness (L*) with GISP2 oxygen isotope data suggests that the SKP-I tephra is stratigraphically between D-O Interstadial (IS) 9 and 10, and the SKP-II tephra is between D-O IS 17 and 18. The SKP-I and SKP-II tephras are equivalent to the U-Ym tephra described by Arai et al. [Arai, F., Oba, T., Kitazato, H., Horibe, Y., Machida, H., 1981. Late Quaternary tephrochronology and paleo-oceanography of the sediments of the Japan Sea. Quat. Res. (Daiyonki-kenkyu) 20, 209-230 (in Japanese, with English Abstr.)] and that described by Ikehara et al. [Ikehara, K., Kikkawa, K., Chun, J.-H., 2004. Origin and correlation of three tephras that erupted during oxygen isotope stage 3 found in cores from the Yamato Basin, central Japan Sea. Quat. Res. (Daiyonki-kenkyu) 43, 201-212 (in Japanese, with English Abstr.)], respectively. They not only provide marker horizons within the stratigraphic interval corresponding to MIS 3 and 4 but also can be useful to identify D-O events for marine cores from the southern part of the ES/JS. © 2007 Elsevier B.V. All rights reserved. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | Elsevier BV | - |
dc.title | Age of the SKP-I and SKP-II tephras from the southern East Sea/Japan Sea: Implications for interstadial events recorded in sediment from marine isotope stages 3 and 4 | - |
dc.type | Article | - |
dc.citation.endPage | 114 | - |
dc.citation.startPage | 100 | - |
dc.citation.title | Palaeogeography, Palaeoclimatology, Palaeoecology | - |
dc.citation.volume | 247 | - |
dc.citation.number | 1-2 | - |
dc.contributor.alternativeName | 한상준 | - |
dc.identifier.bibliographicCitation | Palaeogeography, Palaeoclimatology, Palaeoecology, v.247, no.1-2, pp.100 - 114 | - |
dc.identifier.doi | 10.1016/j.palaeo.2006.11.024 | - |
dc.identifier.scopusid | 2-s2.0-33947717264 | - |
dc.identifier.wosid | 000246086100010 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordPlus | interstitial environment | - |
dc.subject.keywordPlus | isotopic composition | - |
dc.subject.keywordPlus | marine isotope stage | - |
dc.subject.keywordPlus | marine sediment | - |
dc.subject.keywordPlus | oxygen isotope | - |
dc.subject.keywordPlus | paleoceanography | - |
dc.subject.keywordPlus | sediment core | - |
dc.subject.keywordPlus | tephra | - |
dc.subject.keywordPlus | tephrochronology | - |
dc.subject.keywordPlus | trachyte | - |
dc.subject.keywordPlus | Asia | - |
dc.subject.keywordPlus | Eurasia | - |
dc.subject.keywordPlus | Far East | - |
dc.subject.keywordPlus | Korea | - |
dc.subject.keywordPlus | Oki Ridge | - |
dc.subject.keywordPlus | Pacific Ocean | - |
dc.subject.keywordPlus | Sea of Japan | - |
dc.subject.keywordPlus | South Korea | - |
dc.subject.keywordPlus | Ulleungdo | - |
dc.subject.keywordPlus | chemical composition | - |
dc.subject.keywordPlus | Dansgaard-Oeschger cycle | - |
dc.subject.keywordPlus | interstadial | - |
dc.subject.keywordAuthor | Dansgaard-Oeschger events | - |
dc.subject.keywordAuthor | Marine oxygen isotope stages 3 and 4 | - |
dc.subject.keywordAuthor | SKP-I and SKP-II tephras | - |
dc.subject.keywordAuthor | South Korea Plateau | - |
dc.subject.keywordAuthor | Southern East Sea/Japan Sea | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |