This paper is supported by the National "863" Program in the Tenth Five-Year-Plan (No. 2002AA615020);Eleventh Five-Year-Plan (No. 2006AA09A201);the Focused Subject Program of Beijing (No. XK104910598).
Although magnetotelluric sounding method applied to the land is advanced, there are many difficulties when it is applied to marine environment, one of which is how to lay magnetic field sensors down to the seafloor to...