Artículo

Comínguez, A.H.; Cristallini, E.O.; Ramos, V.A.; Mercerat, E.D. "Deep seismic reflection reprocessing in northwestern Argentina (27° SL)" (2000) SEG Technical Program Expanded Abstracts. 19(1):521-524
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Abstract:

Deep Seismic Study, in eastern and western foothills of Sierra de Aconquija, northwestern Sierras Pampeanas, Argentina, shows the deep structure of the range and the deep geometry of the Andean foreland basin. "Self-truncating" extended correlation algorithm was applied to compute cross-correlation between the sweep and the records of Vibroseis lines. Special procedures, such as finite difference migration, FX deconvolution, FMED processing and complex demodulation, were applied in order to improve the interpretation. On the eastern side of Sierra de Aconquija, the structure is characterized by reverse faulting with eastward vergence, with the Guasayán and El Rosario faults exhibiting the most deformation. To the south, the Guasayán fault produces the uplift of the Guasayán basement range over tertiary deposits, and can be identified in the seismic reflection record down to 40 km depth. On the western side of Sierra de Aconquija, the deep structure of Campo del Arenal is characterized by westward vergent structures controlled by the anisotropy of the Sierra de Aconquija basement. Further to the west, the deformation style changes to eastward vergence. As a whole, both fault systems depict a double wedge active thrusting. Conspicuous sub-horizontal acoustic-reflectors at about 18, 30, 40 and 50 km depth, are interpreted as present or past brittleductile transitions. © 2000 Society of Exploration Geophysicists.

Registro:

Documento: Artículo
Título:Deep seismic reflection reprocessing in northwestern Argentina (27° SL)
Autor:Comínguez, A.H.; Cristallini, E.O.; Ramos, V.A.; Mercerat, E.D.
Filiación:CONICET, Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina
Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Año:2000
Volumen:19
Número:1
Página de inicio:521
Página de fin:524
DOI: http://dx.doi.org/10.1190/1.1816112
Título revista:SEG Technical Program Expanded Abstracts
Título revista abreviado:SEG Techn. Program Expand. Abstr.
ISSN:10523812
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10523812_v19_n1_p521_Cominguez

Referencias:

  • Claerbout, J.F., (1976) Fundamentals of geophysical data processing: with applications to.petroleum prospecting, , McGraw Hill, New York
  • Fauqué, L.E., Strecker, M.R., Rasgos de neotectónica y avalanchas de roca producidas por Nevados del Aconquija , provincia de Catamarca, Argentina (1987) 10° Congreso Geológico Argentino, Actas I, pp. 219-222
  • Okaya, D.A., Jarchow, C.M., Extraction of deep crustal reflections from shallow Vibroseis data using extended correlation (1989) Geophysics, 54, pp. 552-562
  • Sacchi, M.D., Velis, D.R., Comínguez, A.H., Minimum entropy deconvolution with frequency-domain constraints (1996) Deconvolution II, Society of Exploration Geophysicists, pp. 278-285. , E.A. Robinson and O.M. Osman (eds.)
  • Strecker, M.R., Cerveny, P., Bloom, A.L., Malizia, D., Late Cenozoic tectonism and landscape development in the foreland of the Andes (1989) Northern Sierras Pampeanas, 8, pp. 517-534. , (26-28°S), Argentina: Tectonics
  • Trorey, A.W., A simple Theory for seismic diffractions (1970) Geophysics, 35, pp. 762-784

Citas:

---------- APA ----------
Comínguez, A.H., Cristallini, E.O., Ramos, V.A. & Mercerat, E.D. (2000) . Deep seismic reflection reprocessing in northwestern Argentina (27° SL). SEG Technical Program Expanded Abstracts, 19(1), 521-524.
http://dx.doi.org/10.1190/1.1816112
---------- CHICAGO ----------
Comínguez, A.H., Cristallini, E.O., Ramos, V.A., Mercerat, E.D. "Deep seismic reflection reprocessing in northwestern Argentina (27° SL)" . SEG Technical Program Expanded Abstracts 19, no. 1 (2000) : 521-524.
http://dx.doi.org/10.1190/1.1816112
---------- MLA ----------
Comínguez, A.H., Cristallini, E.O., Ramos, V.A., Mercerat, E.D. "Deep seismic reflection reprocessing in northwestern Argentina (27° SL)" . SEG Technical Program Expanded Abstracts, vol. 19, no. 1, 2000, pp. 521-524.
http://dx.doi.org/10.1190/1.1816112
---------- VANCOUVER ----------
Comínguez, A.H., Cristallini, E.O., Ramos, V.A., Mercerat, E.D. Deep seismic reflection reprocessing in northwestern Argentina (27° SL). SEG Techn. Program Expand. Abstr. 2000;19(1):521-524.
http://dx.doi.org/10.1190/1.1816112