pure and applied geophysics

, Volume 110, Issue 1, pp 2056–2065 | Cite as

A computer program for interpreting vertical magnetic anomalies of spheres and horizontal cylinders

  • B. S. R. Rao
  • I. V. Radhakrishna Murthy
  • C. Visweswara Rao
Article

Summary

A common computer program for the interpretation of vertical magnetic anomalies of spheres and horizontal cylinders has been developed. The input consists of the observed anomalies noted against their distances measured from an arbitrary point in the profile and a code number for each model. The program is written so that the positions and magnitudes of the maximum and minimum anomalies are located and their ratios and signs are used to define the initial parameters of the model under consideration. The errors resulting from these approximate values are derived and are solved for the increments to be given to the initial values. The process is repeated until the sum of the squares of the errors is less than 0.25% of the sum of the squares of the observed anomalies. The method has been tested on various theoretical examples and the results justify the validity of the programme.

Keywords

Computer Program Arbitrary Point Magnetic Anomaly Initial Parameter Code Number 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    W. Bosum,Ein automatisches Verfahren zur Interpretation magnetischer Anomaliem nach der Methode der kleinsten Quadrate, Geophys. Prosp.16 (1968), 107–126.Google Scholar
  2. [2]
    D. H. Hall,A magnetic interpretation method for calculating body parameters for buried sloping steps and thick sheets, Geoexploration6 (1968), 187–206.Google Scholar
  3. [3]
    P. H. McGrath andP. J. Hood,The dipping dyke case—A computer curve-matching method of magnetic interpretation, Geophysics35 (1970), 831–848.Google Scholar
  4. [4]
    B. S. R. Rao, I. V. Radhakrishna Murthy andC. Visweswara Rao,Two methods for computer interpretation of magnetic anomalies of dykes, Geophysics (1973). In Press.Google Scholar
  5. [5]
    I. V. Radhakrishna Murthy,Note on the interpretation of magnetic anomalies of spheres, J. Ind. Geophys. Union4 (1967), 41–42.Google Scholar

Copyright information

© Birkhäuser-Verlag 1973

Authors and Affiliations

  • B. S. R. Rao
  • I. V. Radhakrishna Murthy
  • C. Visweswara Rao
    • 1
  1. 1.Department of GeophysicsAndhra UniversityWaltairIndia

Personalised recommendations