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Abstract:

The Pampean Ranges (PR) of Argentina are a region of active thick-skinned deformation between stable cratonic South America and the Andes. The Tucumán Plain (TP) at the northern end of the PR lies just west of the most easterly active faults. In 1998, we collected 18 wideband magnetotelluric (MT) sites along two east-west (E-W) transects across the TP. The northern transect is along 27°10′S. The southern transect, along 27°39′S, crosses a widespread, low-temperature geothermal reservoir. Inversion of the data with electrical field polarized perpendicular to strike reveals a basin extending to a depth greater than 4 km, whose lower limit is consistent with the tectonic setting. Within the basin is a shallow low-resistive layer approximately 700 m deep, which correlates with the Pliocene Araucanense Formation. This overlies a much more conductive body representing a highly salty Miocene Formation (Calchaquense). © 2002 Elsevier Science B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
Autor:Pomposiello, M.Cristina; Favetto, A.; Sainato, C.; Booker, J.; Li, S.
Filiación:CIRGEO, Ramirez de Velasco 847, 1414 Buenos Aires, Argentina
Dpto. de Física, Univ. Buenos Aires, Pabellón i, 1428 Buenos Aires, Argentina
Cátedra de Física, Fac. Agronomía, Univ. Buenos Aires, Av. San Martín 4453, 1417 Buenos Aires, Argentina
Geophysics Program, Box 351650, University of Washington, Seattle, WA, United States
Palabras clave:Pampean Ranges; Sedimentary basin; Tucumáin Plain; Catchments; Deformation; Electric fields; Imaging techniques; Tectonics; Geothermal reservoirs; Geophysics; electrical resistivity; geological structure; imaging method; sedimentary basin; tectonic setting; time series analysis; Argentina
Año:2002
Volumen:49
Número:1-2
Página de inicio:47
Página de fin:58
DOI: http://dx.doi.org/10.1016/S0926-9851(01)00098-2
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_v49_n1-2_p47_Pomposiello

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Citas:

---------- APA ----------
Pomposiello, M.Cristina, Favetto, A., Sainato, C., Booker, J. & Li, S. (2002) . Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina. Journal of Applied Geophysics, 49(1-2), 47-58.
http://dx.doi.org/10.1016/S0926-9851(01)00098-2
---------- CHICAGO ----------
Pomposiello, M.Cristina, Favetto, A., Sainato, C., Booker, J., Li, S.. "Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina" . Journal of Applied Geophysics 49, no. 1-2 (2002) : 47-58.
http://dx.doi.org/10.1016/S0926-9851(01)00098-2
---------- MLA ----------
Pomposiello, M.Cristina, Favetto, A., Sainato, C., Booker, J., Li, S.. "Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina" . Journal of Applied Geophysics, vol. 49, no. 1-2, 2002, pp. 47-58.
http://dx.doi.org/10.1016/S0926-9851(01)00098-2
---------- VANCOUVER ----------
Pomposiello, M.Cristina, Favetto, A., Sainato, C., Booker, J., Li, S.. Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina. J. Appl. Geophys. 2002;49(1-2):47-58.
http://dx.doi.org/10.1016/S0926-9851(01)00098-2