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| | Abstract | | In late years, the sea-floor hydrothermal ore deposits attract attention due to the global shortage of various mineral resources. EM method has already had good records in its exploration. It is a continuous measuring method keeping the same altitude of 2 meters off the bottom. But sometimes it is unable to keep good position for measuring because of the rough bottom such as cliffs and chimneys. In such cases, the data is affected and should be corrected. In this study, the effect of changes in sea-floor landform, conductivity, and ROV position is examined by the water tank experiment. As a result, investigation depth and the effects of ROV position and landforms are revealed. |
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