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http://dx.doi.org/10.5467/JKESS.2007.28.3.357

Long-term Variation of Tidal-flat Sediments in Gomso Bay, West Coast of Korea  

Chang, Jin-Ho (Department of Marine Resources, Mokpo National University)
Ryu, Sang-Ock (Institute of Tidal-Flat Research, Mokpo National University)
Jo, Yeong-Jo (Tidal-Flat Research Center, West Sea Fisheries Research Institute)
Publication Information
Journal of the Korean earth science society / v.28, no.3, 2007 , pp. 357-366 More about this Journal
Abstract
In Gomso Bay, on the west coast of Korea, the surface sediments sampled in 1991 and 2006 were analysed to identify the long-term variations of tidal flat sediments. Silt and clay contents have decreased in the bay-mouth tidal flats whereas sand and clay contents have decreased on the inner-bay and bay-head tidal flats over the last 15 year period. In particular, the clay contents of the tidal flats in 2006 were relatively low when compared to those of both tidal flats adjacent to other semi-enclosed bays and those of the tidal flats in 1991. The variations of textural compositions in the tidal flat sediments have led to changes of the sedimentary facies. It indicates that the changes must have been made by the changes of hydrodynamic conditions impacted by human activities, such as the construction of sea-walls, land reclamation, structures of farms constructed compactly near the low water line, and the Saemangeum dyke constructed in the northern part of the area where this research was conducted.
Keywords
Gomso Bay; tidal flat sediments; long-term variation; coastline deformation; Saemangeum dyke;
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Times Cited By KSCI : 1  (Citation Analysis)
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