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High-resolution seismic study of modern fine-grained deposits: Inner shelf off the southeastern coast of 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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Authors and Affiliations

  1. Department of Oceanography, Chungnam National University, 305-764, Taejon, Korea

    S. C. Park, K. M. Jang & S. D. Lee

Authors
  1. S. C. Park
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  2. K. M. Jang
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  3. S. D. Lee
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Park, S.C., Jang, K.M. & Lee, S.D. High-resolution seismic study of modern fine-grained deposits: Inner shelf off the southeastern coast of Korea. Geo-Marine Letters 10, 145–149 (1990). https://doi.org/10.1007/BF02085929

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  • DOI: https://doi.org/10.1007/BF02085929

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