The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina

Autores
Anzil, Patricia Andrea; Martino, Roberto Donato
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The serpentinized ultramafic body of La Cocha is located in the Sierra Chica of Córdoba (31° 36′ 40″ South and 64° 32′ 40″ West). The body is a spinel harzburgite composed of olivine, enstatite and spinel, almost completely hydrated to associations of serpentine minerals. The rock is dark green, foliated, rich in serpentinized olivine and grains or aggregates of enstatite, partially to totally altered to bastite, with spinel as inclusions and a general porphyritic appearance. The S2 metamorphic foliation was determined by a compositional layering defined by the lengthening and concentration of irregular pyroxene layers that alternate with olivine layers. This foliation is affected by S3, composed of serpentine, which is parallel or cut sharply with low angles to S2. The main structure of La Cocha ultramafic body is a low cylindrical recumbent fold interpreted as an "a"-type domal structure which is part of a major sheath fold, currently cut off by erosion. La Cocha ultramafic body is interpreted as an obducted slice of oceanic mantle, probably part of a basal tectonite of an ophiolitic complex. This slice, after its emplacement, was metamorphosed and deformed together with the country rocks. © 2009 Elsevier Ltd. All rights reserved.
Fil: Anzil, Patricia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Martino, Roberto Donato. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Materia
Argentina
CÓRdoba
La Cocha Hill
Sierra Chica
Structure
Ultramafic Rocks
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/55361
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/55361
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, ArgentinaAnzil, Patricia AndreaMartino, Roberto DonatoArgentinaCÓRdobaLa Cocha HillSierra ChicaStructureUltramafic Rockshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The serpentinized ultramafic body of La Cocha is located in the Sierra Chica of Córdoba (31° 36′ 40″ South and 64° 32′ 40″ West). The body is a spinel harzburgite composed of olivine, enstatite and spinel, almost completely hydrated to associations of serpentine minerals. The rock is dark green, foliated, rich in serpentinized olivine and grains or aggregates of enstatite, partially to totally altered to bastite, with spinel as inclusions and a general porphyritic appearance. The S2 metamorphic foliation was determined by a compositional layering defined by the lengthening and concentration of irregular pyroxene layers that alternate with olivine layers. This foliation is affected by S3, composed of serpentine, which is parallel or cut sharply with low angles to S2. The main structure of La Cocha ultramafic body is a low cylindrical recumbent fold interpreted as an "a"-type domal structure which is part of a major sheath fold, currently cut off by erosion. La Cocha ultramafic body is interpreted as an obducted slice of oceanic mantle, probably part of a basal tectonite of an ophiolitic complex. This slice, after its emplacement, was metamorphosed and deformed together with the country rocks. © 2009 Elsevier Ltd. All rights reserved.Fil: Anzil, Patricia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Martino, Roberto Donato. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaPergamon-Elsevier Science Ltd2009-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/55361Anzil, Patricia Andrea; Martino, Roberto Donato; The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 4; 12-2009; 398-4060895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981109000613info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2009.04.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:55Zoai:ri.conicet.gov.ar:11336/55361instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:47:55.777CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
title The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
spellingShingle The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
Anzil, Patricia Andrea
Argentina
CÓRdoba
La Cocha Hill
Sierra Chica
Structure
Ultramafic Rocks
title_short The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
title_full The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
title_fullStr The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
title_full_unstemmed The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
title_sort The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina
dc.creator.none.fl_str_mv Anzil, Patricia Andrea
Martino, Roberto Donato
author Anzil, Patricia Andrea
author_facet Anzil, Patricia Andrea
Martino, Roberto Donato
author_role author
author2 Martino, Roberto Donato
author2_role author
dc.subject.none.fl_str_mv Argentina
CÓRdoba
La Cocha Hill
Sierra Chica
Structure
Ultramafic Rocks
topic Argentina
CÓRdoba
La Cocha Hill
Sierra Chica
Structure
Ultramafic Rocks
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The serpentinized ultramafic body of La Cocha is located in the Sierra Chica of Córdoba (31° 36′ 40″ South and 64° 32′ 40″ West). The body is a spinel harzburgite composed of olivine, enstatite and spinel, almost completely hydrated to associations of serpentine minerals. The rock is dark green, foliated, rich in serpentinized olivine and grains or aggregates of enstatite, partially to totally altered to bastite, with spinel as inclusions and a general porphyritic appearance. The S2 metamorphic foliation was determined by a compositional layering defined by the lengthening and concentration of irregular pyroxene layers that alternate with olivine layers. This foliation is affected by S3, composed of serpentine, which is parallel or cut sharply with low angles to S2. The main structure of La Cocha ultramafic body is a low cylindrical recumbent fold interpreted as an "a"-type domal structure which is part of a major sheath fold, currently cut off by erosion. La Cocha ultramafic body is interpreted as an obducted slice of oceanic mantle, probably part of a basal tectonite of an ophiolitic complex. This slice, after its emplacement, was metamorphosed and deformed together with the country rocks. © 2009 Elsevier Ltd. All rights reserved.
Fil: Anzil, Patricia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Martino, Roberto Donato. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
description The serpentinized ultramafic body of La Cocha is located in the Sierra Chica of Córdoba (31° 36′ 40″ South and 64° 32′ 40″ West). The body is a spinel harzburgite composed of olivine, enstatite and spinel, almost completely hydrated to associations of serpentine minerals. The rock is dark green, foliated, rich in serpentinized olivine and grains or aggregates of enstatite, partially to totally altered to bastite, with spinel as inclusions and a general porphyritic appearance. The S2 metamorphic foliation was determined by a compositional layering defined by the lengthening and concentration of irregular pyroxene layers that alternate with olivine layers. This foliation is affected by S3, composed of serpentine, which is parallel or cut sharply with low angles to S2. The main structure of La Cocha ultramafic body is a low cylindrical recumbent fold interpreted as an "a"-type domal structure which is part of a major sheath fold, currently cut off by erosion. La Cocha ultramafic body is interpreted as an obducted slice of oceanic mantle, probably part of a basal tectonite of an ophiolitic complex. This slice, after its emplacement, was metamorphosed and deformed together with the country rocks. © 2009 Elsevier Ltd. All rights reserved.
publishDate 2009
dc.date.none.fl_str_mv 2009-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/55361
Anzil, Patricia Andrea; Martino, Roberto Donato; The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 4; 12-2009; 398-406
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55361
identifier_str_mv Anzil, Patricia Andrea; Martino, Roberto Donato; The megascopic and mesoscopic structure of La Cocha ultramafic body, Sierra Chica of Córdoba, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 4; 12-2009; 398-406
0895-9811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981109000613
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2009.04.012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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