Clay mineralogy of bottom sediment in the Jinhae Bay,Korea |
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Authors: | Byong-Kwon Park Sang-Joon Han Jong-Wha Lee |
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Institution: | (1) Department of Earth Sciences, Korea Military Academy, Seoul, Korea;(2) Department of Marine Sciences, Korea Research Institute of Ship and Ocean, Dong Dae Mun, P.O. Box 131, Seoul, Korea |
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Abstract: | The bottom sediments of Jinhae Bay area contain, on average, 45 % illite, 23 % kaolinite, 17 % intergrade clay, 10 % chlorite, and 5 % smectite. The geographical distribution of the clay minerals shows, in general, an it crease in illite, a decrease in kaolinite, and a slight decrease in chlorite seawards. The distributional trends of smectite and intergrade clay are irregular. The clay fractions of the sediments of Jinhae Bay are supplied from stream-borne sediments and are mixed with sediments transported landwards from the East China Sea. Local erosion and redeposition of the clay fractions of the bottom sediments is caused by rapid tidal currents. |
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