• Title/Summary/Keyword: molluscan thanatocoenoses

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Post-Last Glacial Sea-Level Change and Time-Averaging appeared from the Molluscan Thanatocoenoses in the Southern Sea of Korea (한국 남해해역 패류군집에서 나타나는 시간평균화 현상과 최종 빙하기 이후 해수면 변동)

  • Lee, Yeon-Gyu
    • Journal of the Korean earth science society
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    • v.26 no.6
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    • pp.541-550
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    • 2005
  • Molluscan shells were sampled from the continental shelf of South Sea: 19 stations in the southeast continental shelf and 5 in the southwest sea, in order to understand characteristics of sea level changes and time-averaging since the last glacial age. Radiocarbon dates were made on 42 dominant and specific species which were sampled from 24 stations. Time-averaging was observed and showed to be 11,939 years in age difference. The sea-level ranged from 150 to 160 m below sea level during the LGM (about 15,000 yrs B.P). The sea-level significantly rose to 60 m at around 9,000 yrs B.P. and became stable at 50 to 60 m between periods between 4,000 and 5,000 yrs B.P. Between 3,000 and 4,000 yrs B.P, the sea-level rapidly rose to a depth of $10\~20m$ below today’s present sea level.