Sedimentation rates in Kagoshima Bay, Southwestern Japan, using the 210Pb method
1 Mutsu Marine Laboratory, Japan Marine Science Foundation Aomori, Japan
2 Low Level Radioactivity Laboratory, Kanazawa University, Japan
3 Lake Biwa Research Institute - Otsu, Shiga, Japan
4 Department of Fisheries, Kagoshima University, Japan
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To understand the pattern of sedimentation rates as fundamental physical parameter of coastal environment, the 210Pb dating method was applied to core samples collected from Kagoshima Bay, Southwestern Japan. The sedimentation rate varied at each location within the bay (0.08–0.30 g·cm−2·y−1), and the rate at the bay-head area was less than that at the centre of the bay. The inventory of ex210Pb has a lower value in the bay-head area. The low ex210Pb inventory at Stn.5' is considered to be due to physical, and chemical conditions in the bay-head area.
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