Abstract

The apparent resistivity calculations published for the two layer case with an inclined interface can be applied to small dip angles only. They are also limited to low ratios of the electrode spacing in relation to depth. This investigation covers the complete range of dip angles and electrode spacings. The theory of reflected images is not generally applicable to the case of dipping layers, as assumed until now. Only for certain particular values of the dip do the methods of this theory remain in force. For all other dip angles practically sufficient results are obtainable by interpolation. The calculations are exact in cases with a bottom layer of very high or negligibly low resistivity. For the intermediate resistivity values an approximation method is available. Simple algebraical expressions are obtained for the apparent resistivity curves. An approach to multilayer problems is discussed. The field procedure is outlined.

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