한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제42권6호
  • /
  • Pages.683-694
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  • 2009
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  • 0374-8111(pISSN)
  • /
  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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Sedimentary Environment and Sequence Study using High Resolution Seismic Survey in Gyunggi Bay, the Yellow Sea

  • 이광수 (부경대학교 에너지자원공학과) ;
  • 김대철 (부경대학교 에너지자원공학과) ;
  • 서영교 (지마텍(주)) ;
  • 이희일 (한국해양연구원) ;
  • 유신 (부경대학교 에너지자원공학과)
  • Lee, Gwang-Soo (Department of Energy Resources Engineering, Pukyong National University) ;
  • Kim, Dae-Choul (Department of Energy Resources Engineering, Pukyong National University) ;
  • Seo, Young-Kyo (Gematek Corporation) ;
  • Yi, Hi-Il (Department of Marine Environment Research, Korea Ocean Research & Development Institute) ;
  • Yoo, Shin (Department of Energy Resources Engineering, Pukyong National University)
  • 발행 : 2009.12.31
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초록

High-resolution (Chirp and Sparker system) seismic profiles were analyzed to investigate the sedimentary sequence and distribution pattern of the late Holocene deposits in Gyunggi Bay, the Yellow Sea. The bay is located in the western part of Korea, east of the Yellow Sea. The sedimentary sequence divided into three units bounded by erosional bounding surface: (1) acoustically parallel to subparallel reflectors with cross bedding structures (Unit 1); (2) confused inner reflectors and top of unit exposed partially at the seafloor (Unit 2); and (3) approximately parallel reflections and regressive to transgressive incision-fills (Unit 3). On the basis of seafloor morphology, surface bedforms, and subbotom acoustic characters, echo types in the study area were identified following the schemes of Chough et al. (2002); (1) flat seafloor with sharp bottom echoes (echo types 1-1, 1-2 and 1-3; transgressive sediment sheets or relict sands), (2) mounded seafloor with either smooth surface or superposed bedforms (echo types 2-1 and 2-2; tidal ridges), and (3) various-scale eroded seafloor (echo types 3-1 and 3-2; channels). Suspect features of acoustic turbid zones which is related to gas charged sediment are reported.

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  2. Survey of Seafloor at Chagwi-do of Jeju Island to Select 60-m-class Sea Test Bed of Wave Energy Converter vol.31, pp.4, 2017, https://doi.org/10.26748/KSOE.2017.08.31.4.308
  3. Modulation of Tidal Channel Signatures on SAR Images Over Gyeonggi Bay in Relation to Environmental Factors vol.10, pp.4, 2018, https://doi.org/10.3390/rs10040566