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| | Abstract | | Attention has recently been paid to ocean bottom hydrothermal deposits as new mineral resources. In order to detect metal ores effectively, a mobile electromagnetic survey equipment has been required. Therefore, we are developing marine TEM equipment for mounting on autonomous mobile vehicle (AUV). By mounting the coincident loop on AUV, collecting seabed data can be achieved in a shorter time. Before designing the survey equipment, 1D simulation of marine TEM was conducted to know the dynamic range of electromagnetic response. TEM is an electromagnetic method that uses a transient response after current shutdown. When the current is cut at transmitter, induced current flows to prevent the magnetic field from changing. Some example of marine TEM simulation are shown in this paper for marine TEM equipment. |
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