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Geosciences Journal

, 5:251 | Cite as

A seasonal model of surface sedimentation on the Baeksu open-coast intertidal flat, southwestern coast of Korea

  • Byong Cheon Yang
  • Seung Soo Chun
Article

Abstract

Detailed sedimentological studies such as surface sediment distribution, facies changes and sedimentation rate have been carrried out over two years (1997–1998) in the Baeksu open-coast intertidal flat, SW Korea. In the winter and spring seasons, sand facies is relatively dominant on the flat resulting from the strong and frequent influence of wind storms. Average sedimentation rates are ca. 4 and 3 mm/month in winter and spring, respectively. High temperature and weak wave energy would facilitate mud deposition over the sand-facies deposits during the summer with an average sedimentation rate of ca. 10 mm/month. In fall, mud sediments deposited in summertime, are subjected to erosion by strong waves. Sedimentation rate shows net erosion of ca. −10 mm/month in average. Such a seasonal cyclic pattern in deposition/erosion of surface sediments is most likely to reflect the importance of monsoonal controls in open-coast intertidal flats in temperate regions. The annual sedimentation rate of <0.5 mm/yr suggests that the intertidal flat would be in steady or quasi-equilibrium state.

Key words

Baeksu intertidal flat open-coast intertidal setting surface sediment facies monsoonal control of sedimentation sedimentation rate Yellow Sea 

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Copyright information

© Springer 2001

Authors and Affiliations

  • Byong Cheon Yang
    • 1
  • Seung Soo Chun
    • 1
  1. 1.Faculty of Earth Systems and Environmental Sciences, Basic Science InstituteChonnam National UniversityKwangjuKorea

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