TWO DIMENSIONAL FINITE DIFFERENCE SIMULATION OF MAGNETOTELLURIC AND MAGNETIC VARIATION SOUNDINGS WHEN THE SOURCE FIELD IS CONSIDERED

We describe a two dimensional finite difference algorithm for the simulation of magneto-telluric (MT) and magnetic variation (MV) soundings. The algorithm was developed in order to compare apparent resistivity studies performed with these two methods. A source field with a finite geometry is considered. We illustrate an application of our algorithm through a simulation of this kind of soundings in Iceland.