Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?

Serpentinites and fresh or partially serpentinized harzburgite crop out in the western slope of the North Patagonian Andes of continental Chiloé (41°44'-42°12'S). These rocks are spatially associated with low-grade metamorphic rocks containing Cenozoic detrital zircons. The metamorphic roc...

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Autores principales:	Hervé,Francisco, Fuentes,Francisco, Calderón,Mauricio, Fanning,Mark, Quezada,Paulo, Pankhurst,Robert, Rapela,Carlos
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2017
Materias:	Serpentinites North Patagonian Andes Liquiñe-Ofqui Fault Zone Neogene tectonics
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062017000100001
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spelling	oai:scielo:S0718-710620170001000012017-03-09Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?Hervé,FranciscoFuentes,FranciscoCalderón,MauricioFanning,MarkQuezada,PauloPankhurst,RobertRapela,Carlos Serpentinites North Patagonian Andes Liquiñe-Ofqui Fault Zone Neogene tectonics Serpentinites and fresh or partially serpentinized harzburgite crop out in the western slope of the North Patagonian Andes of continental Chiloé (41°44'-42°12'S). These rocks are spatially associated with low-grade metamorphic rocks containing Cenozoic detrital zircons. The metamorphic rocks, together with Devonian metasediments, have been mapped previously as Late Paleozoic-Triassic metamorfic complex, an age no longer tenable for at least part of the complex. Transpressional tectonic emplacement of the ultramafic body or bodies is thought to have been related to activity on the Liquiñe-Ofqui Fault Zone, following a late Oligocene-Early Miocene extensional phase in the forearc region of the present Andes. This fault zone occurs immediately east of the outcrops of the ultramafic rocks and has been interpreted previously as generating a hemi-flower or flower structure.info:eu-repo/semantics/openAccessServicio Nacional de Geología y Minería (SERNAGEOMIN)Andean geology v.44 n.1 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062017000100001en10.5027/andgeoV44n1-a01
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Serpentinites North Patagonian Andes Liquiñe-Ofqui Fault Zone Neogene tectonics
spellingShingle	Serpentinites North Patagonian Andes Liquiñe-Ofqui Fault Zone Neogene tectonics Hervé,Francisco Fuentes,Francisco Calderón,Mauricio Fanning,Mark Quezada,Paulo Pankhurst,Robert Rapela,Carlos Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?
description	Serpentinites and fresh or partially serpentinized harzburgite crop out in the western slope of the North Patagonian Andes of continental Chiloé (41°44'-42°12'S). These rocks are spatially associated with low-grade metamorphic rocks containing Cenozoic detrital zircons. The metamorphic rocks, together with Devonian metasediments, have been mapped previously as Late Paleozoic-Triassic metamorfic complex, an age no longer tenable for at least part of the complex. Transpressional tectonic emplacement of the ultramafic body or bodies is thought to have been related to activity on the Liquiñe-Ofqui Fault Zone, following a late Oligocene-Early Miocene extensional phase in the forearc region of the present Andes. This fault zone occurs immediately east of the outcrops of the ultramafic rocks and has been interpreted previously as generating a hemi-flower or flower structure.
author	Hervé,Francisco Fuentes,Francisco Calderón,Mauricio Fanning,Mark Quezada,Paulo Pankhurst,Robert Rapela,Carlos
author_facet	Hervé,Francisco Fuentes,Francisco Calderón,Mauricio Fanning,Mark Quezada,Paulo Pankhurst,Robert Rapela,Carlos
author_sort	Hervé,Francisco
title	Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?
title_short	Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?
title_full	Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?
title_fullStr	Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?
title_full_unstemmed	Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?
title_sort	ultramafic rocks in the north patagonian andes: is their emplacement associated with the neogene tectonics of the liquiñe-ofqui fault zone?
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062017000100001
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Ultramafic rocks in the North Patagonian Andes: is their emplacement associated with the Neogene tectonics of the Liquiñe-Ofqui Fault Zone?

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