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Abstract:

We present results from a geophysical prospection at a historical Jesuit Mission, located in San Ignacio (Misiones-Argentina), declared World Monument some years ago. We studied different sectors looking for buried structures; the total area under study covered 36 ha. In this work we will show the results obtained in a sector that at the time of the prospection was at imminent risk of being damaged by a wrong management of the historical resource. To optimize the data acquisition and the preliminary in-situ analysis of the results, we performed an electromagnetic survey using a multifrequency electromagnetic induction device (GEM-2) to have a first insight of the near surface electrical distribution. From 2D and 3D visualization of data, different targets were identified as possible historical structures. Around these anomalous zones, we performed different dipole-dipole profiles, forming high resolution grids for later 3D inversions. Further inversions of the electric and electromagnetic data completed the characterization of the anomalies. One of the main results of this work is that the 3D electric image obtained from 1D inversion of electromagnetic data coincides with the 3D images obtained from resistivity inversion, but at a much less time consuming cost. © 2007 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Rapid evaluation of multifrequency EMI data to characterize buried structures at a historical Jesuit Mission in Argentina
Autor:Bongiovanni, M.V.; Bonomo, N.; de la Vega, M.; Martino, L.; Osella, A.
Filiación:Dpto. Física - Facultad de Ciencias Exactas, Naturales - Universidad de Buenos Aires - CONICET Ciudad Universitaria, Pab. I, 1428 Buenos Aires, Argentina
Palabras clave:3D-electrical imaging; Archaeological prospecting; Electromagnetic inversion; Near surface prospecting; Computer simulation; Data acquisition; Electric conductivity; Electromagnetic induction; Optimization; Visualization; Multifrequency electromagnetic induction; Resistivity inversion; Geophysical prospecting; data acquisition; electrical resistivity; electromagnetic method; electromagnetic survey; historic building; imaging method; visualization; Argentina; South America
Año:2008
Volumen:64
Número:1-2
Página de inicio:37
Página de fin:46
DOI: http://dx.doi.org/10.1016/j.jappgeo.2007.11.006
Título revista:Journal of Applied Geophysics
Título revista abreviado:J. Appl. Geophys.
ISSN:09269851
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v64_n1-2_p37_Bongiovanni

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Citas:

---------- APA ----------
Bongiovanni, M.V., Bonomo, N., de la Vega, M., Martino, L. & Osella, A. (2008) . Rapid evaluation of multifrequency EMI data to characterize buried structures at a historical Jesuit Mission in Argentina. Journal of Applied Geophysics, 64(1-2), 37-46.
http://dx.doi.org/10.1016/j.jappgeo.2007.11.006
---------- CHICAGO ----------
Bongiovanni, M.V., Bonomo, N., de la Vega, M., Martino, L., Osella, A. "Rapid evaluation of multifrequency EMI data to characterize buried structures at a historical Jesuit Mission in Argentina" . Journal of Applied Geophysics 64, no. 1-2 (2008) : 37-46.
http://dx.doi.org/10.1016/j.jappgeo.2007.11.006
---------- MLA ----------
Bongiovanni, M.V., Bonomo, N., de la Vega, M., Martino, L., Osella, A. "Rapid evaluation of multifrequency EMI data to characterize buried structures at a historical Jesuit Mission in Argentina" . Journal of Applied Geophysics, vol. 64, no. 1-2, 2008, pp. 37-46.
http://dx.doi.org/10.1016/j.jappgeo.2007.11.006
---------- VANCOUVER ----------
Bongiovanni, M.V., Bonomo, N., de la Vega, M., Martino, L., Osella, A. Rapid evaluation of multifrequency EMI data to characterize buried structures at a historical Jesuit Mission in Argentina. J. Appl. Geophys. 2008;64(1-2):37-46.
http://dx.doi.org/10.1016/j.jappgeo.2007.11.006