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Abstract:

Recently published seafloor data around the Antarctica plate boundaries, as well as calibration of the Cenozoic Magnetic Polarity Time Scale, allow a reevaluation of the Nazca (Farallon)-South America relative convergence kinematics since late Middle Eocene time. The new reconstruction parameters confirm the basic characteristics determined in previous studies. However, two features are notable in the present data set: a strong increase in convergence rate in Late Oligocene time, and a slowdown during Late Miocene time. The former is coeval with the early development of important tectonic characteristics of the present Central Andes, such as compressional failure in wide areas of the region, and the establishment of Late Cenozoic magmatism. This supports the idea that a relationship exists between strong acceleration of convergence and mountain building in the Central Andean region.

Registro:

Documento: Artículo
Título:Updated Nazca (Farallon)-South America relative motions during the last 40 My: Implications for mountain building in the central Andean region
Autor:Somoza, R.
Filiación:Lab. Paleomagnetismo Daniel Valencio, Departamento de Geología, Universidad de Buenos Aires, Pabellón 2, (1428) Buenos Aires, Argentina
Palabras clave:Cenozoic; convergence; plate motion; South America
Año:1998
Volumen:11
Número:3
Página de inicio:211
Página de fin:215
DOI: http://dx.doi.org/10.1016/S0895-9811(98)00012-1
Título revista:Journal of South American Earth Sciences
Título revista abreviado:J. South Am. Earth Sci.
ISSN:08959811
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v11_n3_p211_Somoza

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Citas:

---------- APA ----------
(1998) . Updated Nazca (Farallon)-South America relative motions during the last 40 My: Implications for mountain building in the central Andean region. Journal of South American Earth Sciences, 11(3), 211-215.
http://dx.doi.org/10.1016/S0895-9811(98)00012-1
---------- CHICAGO ----------
Somoza, R. "Updated Nazca (Farallon)-South America relative motions during the last 40 My: Implications for mountain building in the central Andean region" . Journal of South American Earth Sciences 11, no. 3 (1998) : 211-215.
http://dx.doi.org/10.1016/S0895-9811(98)00012-1
---------- MLA ----------
Somoza, R. "Updated Nazca (Farallon)-South America relative motions during the last 40 My: Implications for mountain building in the central Andean region" . Journal of South American Earth Sciences, vol. 11, no. 3, 1998, pp. 211-215.
http://dx.doi.org/10.1016/S0895-9811(98)00012-1
---------- VANCOUVER ----------
Somoza, R. Updated Nazca (Farallon)-South America relative motions during the last 40 My: Implications for mountain building in the central Andean region. J. South Am. Earth Sci. 1998;11(3):211-215.
http://dx.doi.org/10.1016/S0895-9811(98)00012-1