2015 Fiscal Year Final Research Report
Developing a revolutionary method for exploration of seafloor hydrothermal deposits
Project/Area Number |
25630417
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Earth system and resources engineering
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Research Institution | The University of Tokyo |
Principal Investigator |
Nakamura Kentaro 東京大学, 工学(系)研究科(研究院), 准教授 (40512083)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Keywords | 海底熱水鉱床 / 船上音響探査 / 周波数 / 観測条件 / 中部沖縄トラフ |
Outline of Final Research Achievements |
In order to make a dramatic improvement in exploration efficiency of seafloor hydrothermal deposits, I tried to develop a new exploration method based on water column observation using multibeam echo souder (MBES) systems. The three years of research produced the following results; (1) elucidation of the cause of the detection of hydrothermal plumes by MBES, (2) determination of optimal conditions for the MBES survey, and (3) performance of a wide-area acoustic water column survey in mid- and southern Okinawa Trough, which provided evidence of effectiveness of this exploration method as well as the first wide-area map for seafloor hydrothermal vent sites in mid-Okinawa Trough.
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Free Research Field |
資源工学
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