Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones

Based on the principle that faults develop where shear stress is maximum, we determine the depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones. Using an elastic half-space model for the south Chile subduction zone, we show that the geometry of a margin-para...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Catalán,Nicole, Bataille,Klaus, Tassara,Andrés, Araya,Rodolfo
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2017
Materias:	Oblique subduction Margin-parallel strike-slip faults Southern Andes Liquiñe-Ofqui Fault Zone
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062017000100005
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-71062017000100005
record_format	dspace
spelling	oai:scielo:S0718-710620170001000052017-03-09Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zonesCatalán,NicoleBataille,KlausTassara,AndrésAraya,Rodolfo Oblique subduction Margin-parallel strike-slip faults Southern Andes Liquiñe-Ofqui Fault Zone Based on the principle that faults develop where shear stress is maximum, we determine the depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones. Using an elastic half-space model for the south Chile subduction zone, we show that the geometry of a margin-parallel strike-slip fault as the Liquiñe-Ofqui Fault Zone (LOFZ), is vertical near the free surface and curved downwards, until reaching the subducting slab. This geometry is compatible with the observations of reflectors on seismic data obtained from wide angle refraction studies in southern Chile. GPS measurements also support this curved geometry. We suggest that this curved pattern should occur on all margin-parallel strike-slip faults within oblique subduction zones worldwide.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=S0718-71062017000100005en10.5027/andgeoV44n1-a05
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Oblique subduction Margin-parallel strike-slip faults Southern Andes Liquiñe-Ofqui Fault Zone
spellingShingle	Oblique subduction Margin-parallel strike-slip faults Southern Andes Liquiñe-Ofqui Fault Zone Catalán,Nicole Bataille,Klaus Tassara,Andrés Araya,Rodolfo Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
description	Based on the principle that faults develop where shear stress is maximum, we determine the depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones. Using an elastic half-space model for the south Chile subduction zone, we show that the geometry of a margin-parallel strike-slip fault as the Liquiñe-Ofqui Fault Zone (LOFZ), is vertical near the free surface and curved downwards, until reaching the subducting slab. This geometry is compatible with the observations of reflectors on seismic data obtained from wide angle refraction studies in southern Chile. GPS measurements also support this curved geometry. We suggest that this curved pattern should occur on all margin-parallel strike-slip faults within oblique subduction zones worldwide.
author	Catalán,Nicole Bataille,Klaus Tassara,Andrés Araya,Rodolfo
author_facet	Catalán,Nicole Bataille,Klaus Tassara,Andrés Araya,Rodolfo
author_sort	Catalán,Nicole
title	Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
title_short	Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
title_full	Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
title_fullStr	Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
title_full_unstemmed	Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
title_sort	depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062017000100005
work_keys_str_mv	AT catalannicole depthdependentgeometryofmarginparallelstrikeslipfaultswithinobliquesubductionzones AT batailleklaus depthdependentgeometryofmarginparallelstrikeslipfaultswithinobliquesubductionzones AT tassaraandres depthdependentgeometryofmarginparallelstrikeslipfaultswithinobliquesubductionzones AT arayarodolfo depthdependentgeometryofmarginparallelstrikeslipfaultswithinobliquesubductionzones
_version_	1714205854376394752

Depth-dependent geometry of margin-parallel strike-slip faults within oblique subduction zones

Ejemplares similares