한국제4기학회지 (The Korean Journal of Quaternary Research)
- 제18권2호통권23호
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- Pages.33-42
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- 2004
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- 1226-8448(pISSN)
Late Pleistocene Fluvial Sequence in South Korea
- Kim, Ju-Yong (Quaternary Environment Research Team, Korea Institute of Geosciences and Mineral Resources) ;
- Yang, Dong-Yoon (Quaternary Environment Research Team, Korea Institute of Geosciences and Mineral Resources) ;
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Nahm, Wook-Hyun
(Quaternary Environment Research Team, Korea Institute of Geosciences and Mineral Resources) ;
- Lee, Yung-Jo (Department of Archeology, Art and History, Chungbug National University) ;
- Park, Ji-Hoon (Department of Geography Education Gongju National University)
- 발행 : 2004.12.01
초록
In South Korea a Pedo-sedimentary Sequence(PS) indicating the Last Glacial Maximun(LGM) is typified y a brown to dark brown, relatively stiff paleosol layers formed by repetitive freezing and thawing processes which in turn left characteristi glossic textures in soil-solum, polygolnal structures with a flagipans, vertical soil wedges or freezing cracks, and horizontal foliations, As a pre-LGM sedimentary sequences (older than 25Ka), the Old Fluvial Sequence(OFS) overlain by the Slope Sedimentary Sequence(SS) are distributed commonly at the base level higher than 14-15m above present river-bed along the major river basin. After the LGM (ca. 18Ka), the Young Fluvial Sequence(YFS) appears at an altitude ascending order of sedimentary profiles. In this fluvial organic muds of Jangheungri site(Jinju), Sorori site(Cheonwon), and Youngsan estruarine rivermouth(Mokpo) were exemplified in order to interpret their formation ages and environments. As result of