Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte la política de Acceso Abierto del editor

Abstract:

We present an algorithm for modeling the magnetotelluric response of three-dimensional multilayered structures with irregular interfaces. In this formulation, based on a Rayleigh-Fourier technique, the effect of vertical anisotropy in the electrical conductivity has also been included. This method has an applicability range complementary to other solutions based on finite differences or on integral equations, which are especially adequate to model localized bodies intruded in a host medium. To test the method, the MT response of a simple conductive structure was modeled and compared with the solutions obtained using integral equations. A good agreement between the results with similar processing times have been observed. Finally, the effect of anisotropy was estimated for the particular case of a conductive basin, showing a non-negligible contribution, depending on the relation between the vertical and horizontal values of the conductivity.

Registro:

Documento: Artículo
Título:MT forward modeling of 3-D anisotropic electrical conductivity structures using the Rayleigh-Fourier method
Autor:Martinelli, P.; Osella, A.
Filiación:Dto. de Física, Universidad de Buenos Aires, Ciudad Universitaria, 1428, Buenos Aires, Argentina
CONICET, Argentina
Año:1997
Volumen:49
Número:11-12
Página de inicio:1499
Página de fin:1518
Título revista:Earth, Planets and Space
Título revista abreviado:Earth Planets Space
ISSN:13438832
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13438832_v49_n11-12_p1499_Martinelli

Referencias:

  • Bahr, K., Interpretation of the magnetotelluric impedance tensor: Regional induction and local telluric distortion (1988) J. Geophys. Res., 62, pp. 119-127
  • Groom, R., Bailey, R., Decomposition of magnetotelluric impedance tensors in the presence of local three-dimensional galvanic distortion (1989) J. Geophys. Res., 94, pp. 1913-1925
  • Hohmann, G.W., Three-dimensional induced polarization and electromagnetic modeling (1975) Geophys., 40, pp. 309-324
  • Jiracek, G.R., Reddig, R.P., Kojima, R.K., Application of the Rayleigh-FFT technique to magnetotelluric modeling and correction (1989) Phys. Earth Planet. Inter., 53, pp. 365-375
  • Lippmann, B.A., Note on the theory of gratings (1953) J. Opt. Soc. Am., 43, pp. 408-414
  • Livelybrooks, D., Program 3-Dfeem: A multidimensional electromagnetic finite-element model (1993) Geophys. J. Inter., 114, pp. 443-458
  • Livelybrooks, D., Mareschal, M., Blais, E., Smith, T., Magnetotelluric delination of the Trillabelle massive sulfide body in Sudbury, Ontario (1996) Geophys., 61, pp. 971-986
  • Mackie, R., Madden, T., Wannamaker, P., Three-dimensional magnetotelluric modeling using difference equations. Theory and comparisons to integral equation solutions (1993) Geophys., 58, pp. 215-226
  • Mackie, R., Madden, T., Park, S., A three-dimensional magnetotelluric investigation of the California Basin and Range (1996) J. Geophys. Res., 101, pp. 16,221-16,239
  • Miller, R.F., On the Rayleigh assumption in scattering by a periodic surface (1971) Proc. Cambridge Phyl. Soc., 69, pp. 217-225
  • Osella, A., Martinelli, P., Magnetotelluric response of anisotropic 2-D structures (1993) Geophys. J. Inter., 115, pp. 819-828
  • Osella, A., Pomposiello, C., Favetto, A., Sainato, C., Martinelli, P., Bidimensional modeling of a geothermal anomaly in the eastern border of Aconquija range (1993) Acta Geod. Geophys. Mont., 28, pp. 329-341
  • Pomposiello, C., Osella, A., Favetto, A., Sainato, C., Martinelli, P., Aprea, C., Current channeling and 3-D effects detected from MT data at a sedimentary basin in Sierras Pampeanas, Argentina (1996) Geophys. J. Inter., , submitted
  • Smith, J.T., Booker, J., Rapid inversion of two and three-dimensional magnetotelluric data (1991) J. Geophys. Res., 96, pp. 3905-3922
  • Wannamaker, P., Advances in three-dimensional magnetotelluric modeling using integral equations (1991) Geophys., 11, pp. 1716-1728
  • Wannamaker, P., Stodt, J., Rijo, L., A stable finite element solution for two-dimensional magnetotelluric modeling (1987) Geophys. J. R. Astr. Soc., 88, pp. 277-296

Citas:

---------- APA ----------
Martinelli, P. & Osella, A. (1997) . MT forward modeling of 3-D anisotropic electrical conductivity structures using the Rayleigh-Fourier method. Earth, Planets and Space, 49(11-12), 1499-1518.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13438832_v49_n11-12_p1499_Martinelli [ ]
---------- CHICAGO ----------
Martinelli, P., Osella, A. "MT forward modeling of 3-D anisotropic electrical conductivity structures using the Rayleigh-Fourier method" . Earth, Planets and Space 49, no. 11-12 (1997) : 1499-1518.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13438832_v49_n11-12_p1499_Martinelli [ ]
---------- MLA ----------
Martinelli, P., Osella, A. "MT forward modeling of 3-D anisotropic electrical conductivity structures using the Rayleigh-Fourier method" . Earth, Planets and Space, vol. 49, no. 11-12, 1997, pp. 1499-1518.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13438832_v49_n11-12_p1499_Martinelli [ ]
---------- VANCOUVER ----------
Martinelli, P., Osella, A. MT forward modeling of 3-D anisotropic electrical conductivity structures using the Rayleigh-Fourier method. Earth Planets Space. 1997;49(11-12):1499-1518.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13438832_v49_n11-12_p1499_Martinelli [ ]