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Acoustic characters and distribution pattern of modern fine-grained deposits in a tide-dominated coastal bay: Jinhae Bay, Southeast Korea

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Abstract

Jinhae Bay, a semi-enclosed, tide-dominated coastal embayment on the southeastern coast of Korea, receives large amounts of sediment derived from the Nakdong River. The irregular surface of the acoustic basement is overlain by a modern sedimentary sequence up to 25 m thick, characterized by an acoustically semitransparent subbottom. Sediments, consisting mainly of terrigenous and bioturbated mud, accumulate at a rate of 2–5 mm/yr. About 21% of the suspended sediments discharged from the Nakdong River, that is approximately 1.0 × 106 tons per year, accumulate in Jinhae Bay. Modern sedimentation began probably at about 5000 yr BP, when sea level approached its present level.

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Authors and Affiliations

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

    S. C. Park & K. W. Lee

  2. Department of Oceanography, Korea Naval Academy, 645-797, Jinhae, Korea

    Y. I. Song

Authors
  1. S. C. Park
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  2. K. W. Lee
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  3. Y. I. Song
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Park, S.C., Lee, K.W. & Song, Y.I. Acoustic characters and distribution pattern of modern fine-grained deposits in a tide-dominated coastal bay: Jinhae Bay, Southeast Korea. Geo-Marine Letters 15, 77–84 (1995). https://doi.org/10.1007/BF01275410

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  • DOI: https://doi.org/10.1007/BF01275410

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