1887
Volume 14 Number 5
  • ISSN: 1569-4445
  • E-ISSN: 1873-0604

Abstract

ABSTRACT

The tilt angle filter can be used both to enhance images of aeromagnetic data and as the basis of semi‐automatic interpretation methods. For vertically magnetised and vertically dipping contacts, rescaling by factor is equivalent to computing from sources with all depths decreased by a factor . This downward continuation is much less sensitive to noise than Fourier transform‐based downward continuation techniques, and because it reduces interference, it allows more accurate source depth determination from methods such as the tilt‐depth method. The method can be applied irrespective of the source and magnetisation type if the tilt angle of the analytic signal amplitude is used.

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2016-06-01
2024-04-19
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References

  1. BlakelyR.J.1995. Potential Theory in Gravity and magnetic Applications.Cambridge University Press.
    [Google Scholar]
  2. CooperG.R.J.2010. A modified tilt‐depth method for kimberlite exploration. 72nd EAGE Conference & Exhibition, Barcelona, Spain, 14–17 June.
    [Google Scholar]
  3. CooperG.R.J.2014a. Determining the location, depth, and dip of contacts from aeromagnetic data. Geophysics79(3), J35–J41.
    [Google Scholar]
  4. CooperG.R.J.2014b. Reducing the dependence of the analytic signal amplitude of aeromagnetic data on the source vector direction. Geophysics79, J55–J60.
    [Google Scholar]
  5. CooperG.R.J.2014c. Automatically obtaining the parameters of potential field sources. 76th EAGE Conference & Exhibition,Amsterdam, The Netherlands.
    [Google Scholar]
  6. CooperG.R.J.2014d. Patent application number PCT/IB2014/066830.
  7. MacleodI.N., JonesK. and DaiT.F.1993. 3‐D analytic signal in the interpretation of total magnetic field data at low magnetic latitudes. Exploration Geophysics24, 679–687.
    [Google Scholar]
  8. MillerH.G. and SinghV.1994. Potential field tilt—a new concept for location of potential field sources. Journal of Applied Geophysics32, 213–217.
    [Google Scholar]
  9. NabighianM.N.1972. The analytical signal of 2D magnetic bodies with polygonal cross‐section: its properties and use for automated anomaly interpretation. Geophysics39, 85–92.
    [Google Scholar]
  10. NabighianM.N.1984. Toward a three‐dimensional automatic interpretation of potential field data via generalized Hilbert transforms: fundamental relations. Geophysics49, 957–966.
    [Google Scholar]
  11. SalemA., WilliamsS., FairheadJ.D., RavatD. and SmithR.S.2007. Tilt‐depth method: a simple depth estimation method using first order magnetic derivatives. The Leading Edge, 1502–1505.
    [Google Scholar]
  12. SalemA.S.K., FairheadJ.D. and AboudE.2010. Extended tilt depth‐a fast depth imaging method using local wavenumbers of magnetic data. 72nd EAGE Conference & Exhibition,Barcelona, Spain, 14–17 June.
    [Google Scholar]
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  • Article Type: Research Article

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