| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| 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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