Summary
A simple method is presented for computing the gravity and magnetic profiles across two-dimensional bodies of arbitrary shape. The computer programme makes use of expressions for the attraction caused by an infinitely long sheet and it takes only a few seconds to compute a profile both for gravity and magnetic anomalies and their vertical and horizontal derivatives. Accuracy of the method is shown to be as good as that of graticules and owing to the use of simpler formulae, the method appears to be faster than the method of polygons.
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References
F. Gassmann,Graphical evaluation of the anomalies of gravity and of the magnetic field, caused by three-dimensional bodies, Proc. Third World Petrol. Congress, Sec.,1 (1951), 613.
N. A. Morgan andF. S. Grant,High speed calculation of gravity and magnetic profiles across two-dimensional bodies having an arbitrary cross-section, Geophysical Prospecting11 (1963), 10.
M. Talwani, J. L. Worzel andM. Landisman,Rapid gravity computations for two-dimensional bodies with application to the Mendocino submarine fracture zone. J. Geophys. Res.64 (1959), 49.
M. Talwani andJ. R. Heirtzler,Computation of magnetic anomalies caused by two-dimensional structures of arbitrary shape: Computers in the mineral industries, Part 1, Stanford Univ. Publ., Geol. Sciences9 (1964), 464.
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Vallabh Sharma, P. Digital computation of gravitational and magnetic anomalies and their derivatives for two-dimensional bodies of arbitrary shape. PAGEOPH 64, 14–18 (1966). https://doi.org/10.1007/BF00875526
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DOI: https://doi.org/10.1007/BF00875526