Acknowledgement
본 연구는 한국지질자원연구원에서 "당성 관련 고대포구 위치 추정을 위한 자연과학적 분석 용역(17-5826)", "기후변화 적응 산사태 조기경보기술 및 지질 환경재해 리스크 제어기술 개발(19-3413)" 및 "지질 기록체를 활용한 한반도 아열대화 규명 연구: 중기 홀로세 기후-지질생태계 특성 평가(19-3414)"로 수행된 연구입니다.
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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.
본 연구는 한국지질자원연구원에서 "당성 관련 고대포구 위치 추정을 위한 자연과학적 분석 용역(17-5826)", "기후변화 적응 산사태 조기경보기술 및 지질 환경재해 리스크 제어기술 개발(19-3413)" 및 "지질 기록체를 활용한 한반도 아열대화 규명 연구: 중기 홀로세 기후-지질생태계 특성 평가(19-3414)"로 수행된 연구입니다.