제주도 하논분화구에서 육원성 알칸과 유기물의 탄소 동위원소 기록: 과거 3만5천년동안 고식생과 고기후변화의 함의

Title
제주도 하논분화구에서 육원성 알칸과 유기물의 탄소 동위원소 기록: 과거 3만5천년동안 고식생과 고기후변화의 함의
Alternative Title
Records of terrestrial n-alkanes and carbon isotope of organic matter in Hanon-Maar sediment, Jeju Island, Korea: implications of paleovegetation and paleoclimate variations over the last 35 kyr
Author(s)
현상민; 신경훈; 이석창; 장세원; 남승일
KIOST Author(s)
Hyun, Sang Min(현상민)
Alternative Author(s)
현상민
Publication Year
2015-10-05
Abstract
Carbon isotope of total carbon ( 13CTOC), long-chain n-alkanes and their compound-specific carbon isotope ratios ( 13CALK) were investigated in the Hanon paleo-Maar sediment, Jeju Island of Korea to understand paleovegetationchanges and their paleoclimate linkages. Based on the organic geochemical data (TOC (%), TN(%) and their  13CTOC and  15NTN ), the core column stratigraphy was divided into three units from bottom to 12.5 ka (UnitI),12.5 ~2.5 ka (Unit II) and 2.5 ka to core tope (Unit III), respectively. In particular,  13CTOC showed marked fluctuation from -17.31‰ to -28.68‰, suggesting different organic carbon sources.ionchanges and their paleoclimate linkages. Based on the organic geochemical data (TOC (%), TN(%) and their  13CTOC and  15NTN ), the core column stratigraphy was divided into three units from bottom to 12.5 ka (UnitI),12.5 ~2.5 ka (Unit II) and 2.5 ka to core tope (Unit III), respectively. In particular,  13CTOC showed marked fluctuation from -17.31‰ to -28.68‰, suggesting different organic carbon sources.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25285
Bibliographic Citation
International conference on Asian Marine Geology, pp.1 - 2, 2015
Publisher
ICAMG
Type
Conference
Language
English
Publisher
ICAMG
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