한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제27권4호
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- Pages.434-444
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- 1994
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
여수해만 주변해역 퇴적물의 물리적 및 음향학적 성질
Physical and Acoustic Properties of Sediment around the Yeosu Sound
- KIM Gil-Young (Department of Applied Geology, National Fisheries University of Pusan) ;
- SUNG Jun-Young (Department of Applied Geology, National Fisheries University of Pusan) ;
- KIM Dae-Choul (Department of Applied Geology, National Fisheries University of Pusan) ;
- KIM Jeong-Chang (Training Ship, National Fisheries University of Pusan)
- 발행 : 1994.07.01
초록
여수해만 주변해역 퇴적물의 물리적 성질 및 음향학적 성질을 밝히기 위해서 총 36개 시추시료에서 10cm 간격으로 퇴적물의 조직(입도), 음파전달속도 및 물리적 성질(공극율, 전밀도, 함수율, 전단응력)을 측정하였다. 연구지역을 광양만, 여수해만, 남해대륙붕의 세 지역으로 나누어 각 지역간의 물성과 조직의 상관관계를 비교 검토하였다. 비교 모델로는 Hamilton(1970)의 북태평양 대륙붕 및 대륙사면 퇴적물을 이용하였다. 본 연구지역에서의 조직과 물성의 분포도(50cm 깊이)를 보면 평균입도(
Physical and acoustic properties of sediment core samples recovered from the Kwangyang Bay, the Yeosu Sound, and the inner shelf of central South Sea, Korea were investigated. Compressional wave velocity, density, porosity, and shear strength were measured at 10cm interval's along the core depth. Sediment texture(grain size, sand, silt, and clay contents) were also measured and correlated with the physical properties(density, porosity, and shear strength). The physical and acoustic properties of the sediment changed gradually from the Kwangyang Bay to the shelf area in accordance with the distance from the input source of the terrigenous sediment. The Yeosu Sound acted as a route of sediment transport from the estuary(the Seomjin River) to the shelf and vice versa. The physical and acoustic properties of the Yeosu Sound sediment conformed to an intermediate stage between river mouth and shelf areas. These results can be utilized to trace the influence of the Seomjin River on the so-called mud belt of Korea.
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