Anisotropy of magnetic susceptibility study in two classical localities of the Gastre Fault System, central Patagonia

The Central Patagonian Batholith is a suite of acid and meso-silicic rocks cropping out in central Patagonia. The emplacement of these rocks has been proposed to be related to the activity of a system of dextral transcurrent faults, the NW-SE Gastre Fault System. This fault system has been ascribed...

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Autor principal: Zaffarana, C.B
Otros Autores: López de luchi, M.G, Somoza, R., Mercader, Roberto Carlos, Giacosa, R., Martino, R.D
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2010
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100 1 |a Zaffarana, C.B. 
245 1 0 |a Anisotropy of magnetic susceptibility study in two classical localities of the Gastre Fault System, central Patagonia 
260 |c 2010 
270 1 0 |m Zaffarana, C.B.; Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresArgentina; email: zaffarana@gl.fcen.uba.ar 
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506 |2 openaire  |e Política editorial 
520 3 |a The Central Patagonian Batholith is a suite of acid and meso-silicic rocks cropping out in central Patagonia. The emplacement of these rocks has been proposed to be related to the activity of a system of dextral transcurrent faults, the NW-SE Gastre Fault System. This fault system has been ascribed a transcontinental magnitude and a ∼500 km dextral displacement during Gondwana dismembering in Jurassic times. However, the timing, kinematics and amount of displacement of the Gastre Fault System are still controversial. In this work we have visited two localities which were subject of controversial observations, in order to perform petrographical, microstructural and anisotropy of the magnetic susceptibility studies to contribute to the ongoing discussion. The results mostly agree with the findings von Gosen and Loske (2004) in that rocks spatially and temporally associated to the Gastre Fault System do not show evidence supporting the existence of a major dextral fault system active during Jurassic times. © 2010 Elsevier Ltd.  |l eng 
593 |a Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina 
593 |a Consejo Nacional de Investigaciones Científicas, Técnicas (CONICET), Argentina 
593 |a Instituto de Geocronología, Geología Isotópica (INGEIS), Argentina 
593 |a Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina 
593 |a Servicio Geológico Minero Argentino (SEGEMAR), Argentina 
593 |a Departamento de Geología Básica, Facultad de Ciencias Exactas y Naturales, Universidad de Nacional de Córdoba, Argentina 
690 1 0 |a GASTRE 
690 1 0 |a PATAGONIA 
690 1 0 |a TRANSCONTINENTAL FAULT 
690 1 0 |a WEST GONDWANA BREAKUP 
690 1 0 |a BATHOLITH 
690 1 0 |a CONTINENTAL BREAKUP 
690 1 0 |a DISPLACEMENT 
690 1 0 |a FAULTING 
690 1 0 |a GEOMAGNETISM 
690 1 0 |a GONDWANA 
690 1 0 |a JURASSIC 
690 1 0 |a KINEMATICS 
690 1 0 |a MAGNETIC ANISOTROPY 
690 1 0 |a PATAGONIA 
700 1 |a López de luchi, M.G. 
700 1 |a Somoza, R. 
700 1 |a Mercader, Roberto Carlos 
700 1 |a Giacosa, R. 
700 1 |a Martino, R.D. 
773 0 |d 2010  |g v. 30  |h pp. 151-166  |k n. 3-4  |p J. South Am. Earth Sci.  |x 08959811  |w (AR-BaUEN)CENRE-1080  |t Journal of South American Earth Sciences 
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