Analysis of magnetic anomalies due to some two-dimensional bodies using the Mellin transform

N. L. Mohan, L. Anand Babu, N. Sunderarajan, S. V. Seshagiri Rao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An interpretation technique using the Mellin transform is suggested for the analysis of magnetic anomalies due to some two-dimensional structures namely (i) a vertical sheet of both finite and infinite depth extent, (ii) a thick dyke and (iii) a horizontal circular cylinder. The Mellin transformed magnetic anomalies resemble gamma functions which are amenable to an easy interpretation. This procedure is illustrated with a small number of synthetic examples in each case. The practicality of the method is exemplified with the well-known vertical magnetic anomalies of Kursk (USSR) in the case of an infinite sheet model and Karimnagar magnetic anomaly (India) in the case of a horizontal circular cylinder. The results are compared with the techniques already available and found to be reliable.

Original languageEnglish
Pages (from-to)403-428
Number of pages26
JournalPure and Applied Geophysics
Volume133
Issue number3
DOIs
Publication statusPublished - May 1990

Keywords

  • asymptotic values
  • gamma function
  • Magnetic anomalies
  • Mellin transform

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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