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dc.contributor.author신경훈-
dc.date.accessioned2018-02-09T02:40:09Z-
dc.date.available2018-02-09T02:40:09Z-
dc.date.issued2015-10-
dc.identifier.citationQUATERNARY INTERNATIONAL, v. 384, Page. 4-12en_US
dc.identifier.issn1040-6182-
dc.identifier.issn1873-4553-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1040618215000348-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/36372-
dc.description.abstractCarbon isotope of total organic carbon (delta C-13(org)) and long-chain n-alkanes, which are terrestrial plant biomarkers, and their compound-specific carbon isotope ratios (delta C-13(ALK)) were investigated in the sediment of the Jeongok-ri Paleolithic Site in central Korea to interpret changes in paleovegetation and paleoclimate. The delta C-13(org) ranged between approximately -24 parts per thousand and -27 parts per thousand, suggesting different organic matter sources. Relatively lighter delta C-13(org) occurred in lower part and the occurrence of heavier delta C-13(org) in upper part may indicate terrestrial C-3 plant dominance and/or a mixture of C-3 and C-4 plants, respectively. The patterns of n-alkane distribution were characterized by a continuous predominance of odd-numbered n-alkanes, particularly nC(29) and nC(31), and by variation in the distribution of evennumbered n-alkanes. Total concentration of n-alkanes and distributions of each number of n-alkanes are quite different over time, suggesting paleovegetation changes. The average chain length (ACL) and carbon preferences index (CPI) showed gradual variations with distinctive switching points at about 160 ka. This variation reflecting changes in paleovegetation type, is coincident with those of the delta C-13(org). Individual n-alkane isotopes, delta C-13(ALK), ranged between -18.64 parts per thousand and -38.09 parts per thousand, suggesting different sources of n-alkanes. Although some petrogenic sources of n-alkanes were possible, the distribution of n-alkanes and their delta C-13(ALK) support paleovegetation and paleoclimatic variations in Jeongok-ri Paleolithic site, Korea for the last 300 ka. (C) 2015 Elsevier Ltd and INQUA. All rights reserved.en_US
dc.description.sponsorshipThis research was part of the project titled "International Ocean Discovery Program (PM58300)" funded by the Ministry of Ocean and Fisheries, Korea. S.I Nam is supported by Basic Research Program (PE15062) of KOPRI. The authors kindly thank the anonymous reviewers. Special thanks are extended to Ms. SJ Kang for drafting the figures and for data arrangement.en_US
dc.language.isoen_USen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.subjectJeongok-rien_US
dc.subjectn-alkanesen_US
dc.subjectCarbon isotopeen_US
dc.subjectPaleoclimatologyen_US
dc.subjectPaleovegetationen_US
dc.subjectEAST-ASIAN MONSOONen_US
dc.subjectLATE PLEISTOCENEen_US
dc.subjectORGANIC MATERIALen_US
dc.subjectCHINESE LOESSen_US
dc.subjectJAPAN SEAen_US
dc.subjectMAGNETIC-SUSCEPTIBILITYen_US
dc.subjectQUATERNARY SEDIMENTSen_US
dc.subjectMARINE-SEDIMENTSen_US
dc.subjectCLIMATEen_US
dc.subjectDISTRIBUTIONSen_US
dc.titlePaleovegetation and paleoclimate changes based on terrestrial n-alkanes and their carbon isotopes in sediment from the Jeongok-ri Paleolithic Site, Koreaen_US
dc.typeArticleen_US
dc.relation.volume384-
dc.identifier.doi10.1016/j.quaint.2015.01.012-
dc.relation.page4-12-
dc.relation.journalQUATERNARY INTERNATIONAL-
dc.contributor.googleauthorHyun, SM-
dc.contributor.googleauthorSuh, YJ-
dc.contributor.googleauthorShin, KH-
dc.contributor.googleauthorNam, SI-
dc.contributor.googleauthorChang, WH-
dc.contributor.googleauthorBae, KD-
dc.relation.code2015000939-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E]-
dc.sector.departmentMARINE SCIENCE AND CONVERGENCE ENGINEERING-
dc.identifier.pidshinkh-


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