화성 연안의 중세온난기 이후 해수면 변동에 연동된 침식·퇴적 흔적 연구

양동윤; 한민; 김진철; 박수정; 임재수

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자료유형: 학술저널

저자정보: 양동윤 한민 김진철 박수정 임재수

저널정보: 한국지형학회 한국지형학회지 한국지형학회지 제26권 제2호

발행연도: 2019.1

수록면: 39 - 54 (16page)

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In this paper, based on evidence of coastal sediment, we show that erosion and sedimentation environments are very sensitive to sea level changes during the Medieval Warm Period (MWP) and the Little Ice Age (LIA). We identified four sedimentary units(4.57–3.07m), which formed in the Dark Age Cool Period (DACP), MWP and LIA were classified based on the lithostratigraphy, grain size distribution, magnetic susceptibility and geochemistry of a drilling core taken from the west coast of Hwaseong City. The unconformity surfaces as boundaries of the units were also identified by the lithostratigraphy shown on the drilling core. We propoese that sedimentation was dominant in the area during the periods of sea level rise, whereas erosion prevailed during the periods of sea level fall. Particularly, extreme events, such as floods and typhoons are believed to have accelerated these processes, and we found the associated evidence in sediments of two units. This study provides an example of estimating the relative sea level variation using coastal sediments and may be useful for studying past sea level changes around the Korean Peninsula.

#Medieval Warm Period #Sea level #Radio carbon #14C) age dating #Optically stimulated luminescence #OSL) age dating #Dangseong port

참고문헌 (25)

참고문헌 신청

Blott, S.J / 2001 / GRADISTAT: a grain size distribution and statistics package for the analysis of unconsolidated sediments / Earth Surface Processes and Landforms 26(11):1237~1248

Cho, A / 2018 / Holocene climate and environmental changes inferred from sediment characteristics and diatom assemblages in a core from Hwajinpo Lagoon, Korea / Journal of Paleolimnology 60(4):553~570

Chung, C-S / 2016 / Location of ‘Dangeun’ port in the Silla Dynasty / Review of admiral Yi Sun-Sin and Korean maritime history 3:100~132

Dearing, J.A / 1999 / Quaternary Climates, Environments and Magnetism / Cambridge University Press :231~278

Folk, R.L / 1957 / Brazos River bar:a study in the significance of grain size parameters / Journal of Sedimentary Petrology 27(1):3~26

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