Atchuta Rao, D. and H.V. Ram Babu, Interpretation of Magnetic Gradients due to Buried Sloping Steps, Bull. Aust. Soc. Explor. Geophys., 12, 89-92, 1981.

Abstract

Two functions, H(x) and V(x) involving the combinations of both the horizontal Tx(x) and vertical Th(x) gradients of the total magnetic intensity anomaly due to a buried sloping step are defined as:

    H(x) = Tx(x)cos2b  + Th(x)sin2b

and

    V(x) = Tx(x)cos2b  - Th(x)sin2b

where b is the effective inclination of the magnetization vector. By combining the two gradients Tx(x) and Th(x) in this fashion the effect of inclination of the inducing field is removed in the two functions H(x) and V(x). Characteristic points on H(x) and V(x) curves such as zero crossings and equi-gradients are used to evaluate the parameters of the step. This technique can be extended easily to magnetic anomalies in vertical and horizontal components.

References

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