A Semi-automatic Procedure for the Interpretation of Geophysical Data

Gordon R. J. Cooper

doi:10.1071/EG04182

ISSN: 0812-3985
E-ISSN: 1834-7533

A Semi-automatic Procedure for the Interpretation of Geophysical Data
Authors Gordon R. J. Cooper^a
View Affiliations Hide Affiliations

^a School of GeosciencesUniversity of the Witwatersrand, Johannesburg, South Africa, 2050, Tel:11-7176608, Fax:11-7176579, Email:[email protected]@iafrica.com
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 35, Issue 3, Sep 2004, p. 182 - 187
DOI: https://doi.org/10.1071/EG04182
- Received: 10 Sep 2003
- Published online: 01 Sep 2004

Abstract

A procedure for the semi-automatic interpretation of geophysical data is described. A simple model, such as the geophysical response from a layer or a point source, is first constructed. Parameters of the model are then varied simultaneously while being constrained in that the model‘s geophysical response must fit the observed data. Each observed data point contributes a ‘spray’ of solutions in parameter space. The region of parameter space with the greatest density of solutions corresponds to the model that best fits the data, and error bounds can be obtained by examining the distribution of the solutions about that point. The procedure is demonstrated on gravity, magnetic, and seismic refraction models. The method is simple and fast to apply, and can be used as a filtering procedure rather than an interpretation procedure by replacing the measured data with the forward model response of the most probable set of model parameters.

Article metrics loading...

/content/journals/10.1071/EG04182

2004-09-01

2026-01-13

From This Site

/content/journals/10.1071/EG04182

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Barbosa, V. C.F., Silva, J. B.C., and Medeiros, W. E., 1999, Stability analysis and improvement of structural index estimation in Euler deconvolution: Geophysics, 64, 48-60.
Beck, A. E., 1981, Physical Principles of Exploration Methods: Macmillan Press.
Blakely, R. J., 1995, Potential Theory in Gravity and Magnetic Applications: Cambridge University Press.
Buchmann, J.P, 1960, Exploration of a geophysical anomaly at Trompsburg, Orange Free State, South Africa: Transactions of the Geological Society of South Africa, 63, 1-10.
Childers, V. A., Bell, R. E., and Brozena, J. M., 1999, Airborne gravimetry: an investigation of filtering: Geophysics, 64, 61-69.
Durrheim, R. J., and Cooper, G. R.J., 1998, Euldep: A program for the Euler deconvolution of magnetic and gravity data: Computers & Geosciences, 24, 545-550.
Hartman, R. R., Teskey, D. J., and Friedberg, J. L., 1971, A system for rapid digital aeromagnetic interpretation: Geophysics, 36, 891-918.
Hood, P. J., 1963, Gradient measurements in aeromagnetic surveying: Geophysics, 30, 891-902.
Parker, R. L., 1975, Best bounds on density and depth from gravity data: Geophysics, 39, 644-649.
Parker, R. L., 1977, The theory of ideal bodies for gravity interpretation: Geophysical Journal of the Royal Astronomical Society, 42, 315-334.
Reid, A. B., Allsop, J. M., Granser, H., Millet, A. J., and Somerton, I. W., 1990, Magnetic interpretation in three dimensions using Euler deconvolution: Geophysics, 55, 80-91.
Telford, W. M., Geldart, L. P. and Sheriff, R. E., 1995, Applied Geophysics: Cambridge University Press.

/content/journals/10.1071/EG04182

Article Type: Research Article

Keyword(s): Euler deconvolution; Gravity; magnetics; seismic refraction

Most Cited This Month Most Cited RSS feed

- A comparison of smooth and blocky inversion methods in 2D electrical imaging surveys
  
  Authors M.H. Loke, Ian Acworth and Torleif Dahlin
- Reverse-Time Migration using the Poynting Vector
  
  Authors Kwangjin Yoon and Kurt J. Marfurt
- SkyTEM–a New High-resolution Helicopter Transient Electromagnetic System
  
  Authors K. I. Sorensen and Esben Auken
- An overview of a highly versatile forward and stable inverse algorithm for airborne, ground-based and borehole electromagnetic and electric data
  
  Authors Esben Auken, Anders Vest Christiansen, Casper Kirkegaard, Gianluca Fiandaca, Cyril Schamper, Ahmad Ali Behroozmand, Andrew Binley, Emil Nielsen, Flemming Effersø, Niels Bøie Christensen, Kurt Sørensen, Nikolaj Foged and Giulio Vignoli
- The Fast Marching Method: An Effective Tool for Tomographic Imaging and Tracking Multiple Phases in Complex Layered Media
  
  Authors Nicholas Rawlinson and Malcolm Sambridge
- 3-D Analytic Signal in the Interpretation of Total Magnetic Field Data at Low Magnetic Latitudes
  
  Authors Ian N. MacLeod, Keith Jones and Ting Fan Dai
- CMP cross-correlation analysis of multi-channel surface-wave data
  
  Authors Koichi Hayashi and Haruhiko Suzuki
- A new direct non-invasive groundwater detection technology for Australia
  
  Authors M. Schirov, A. Legchenko and G. Creer
- 3D inversion of airborne electromagnetic data using a moving footprint
  
  Authors Leif H. Cox, Glenn A. Wilson and Michael S. Zhdanov
- Notes On Rock Magnetization Characteristics In Applied Geophysical Studies
  
  Authors D. A. Clark and J. B. Emerson
More Less

A Semi-automatic Procedure for the Interpretation of Geophysical Data

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed