Long-term offshore sediment transport and sedimentation using radiocarbon dating

2015 Fiscal Year Final Research Report

• Project/Area Number: 25820235
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: Port and Airport Research Institute
• Principal Investigator: BANNO Masayuki 国立研究開発法人港湾空港技術研究所, その他部局等, その他 (80549204)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 海底コア / 放射性炭素年代測定 / 海浜地形変化 / 長期土砂移動 / 鹿島港 / 漂砂 / 海洋投入土砂 / 堆積環境

Outline of Final Research Achievements

This study investigated sediment depositions and the origins at a water depths of 9 to 19 m at Kashima-nada Sea by radiocarbon dating of shells contained in the seabed core samples. Approximately 50 million cubic meters of sediments were generated during a port construction and dumped into the sea from 1965 to 1977. The dumped sediments were distributed in the wide-area offshore seabed cores and affected nearshore bathymetry change through transporting onshore.

Free Research Field

海岸工学