High-resolution seismic study of modern fine-grained deposits: Inner shelf off the southeastern coast of Korea |
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| Authors: | S C Park K M Jang S D Lee |
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| Institution: | (1) Department of Oceanography, Chungnam National University, 305-764 Taejon, Korea |
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| Abstract: | The geometry and internal structures of modern sediments on the inner shelf off the southeastern coast of Korea were investigated by means of analysing high-frequency (3.5 kHz) seismic records. The records reveal a wedge-shaped sediment body, tapering off toward the sea. On the basis of reflection patterns, the sediments can be classified into two units;  foreset (prodelta) unit and bottomset unit, consisting of sandy muds and clays, respectively. The lateral transition from foreset to bottomset deposits suggests a prograding delta system of the Nakdong River since the late Holocene. |
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