Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages

Based on the type locality mineral associations of the Arquía Group metamorphic rocks in Colombia, the pressure-temperature conditions of metamorphism were obtained and the associated P-T path was built. The analysis of the mineral assemblages indicates a prograde regional metamorphism, which varies...

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Autores:
Valencia-Morales, Yuly Tatiana
Toro Toro, Luz Mary
Ruiz-Jiménez, Elvira Cristina
Moreno-Sánchez, Mario
Tipo de recurso:
Article of journal
Fecha de publicación:
2013
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/43923
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/43923
http://bdigital.unal.edu.co/34021/
http://bdigital.unal.edu.co/34021/2/
Palabra clave:
mineral assemblages
metamorphism
P-T path.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
id UNACIONAL2_13c8e874c001927740c8151af5c09c65
oai_identifier_str oai:repositorio.unal.edu.co:unal/43923
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
title Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
spellingShingle Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
mineral assemblages
metamorphism
P-T path.
title_short Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
title_full Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
title_fullStr Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
title_full_unstemmed Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
title_sort Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages
dc.creator.fl_str_mv Valencia-Morales, Yuly Tatiana
Toro Toro, Luz Mary
Ruiz-Jiménez, Elvira Cristina
Moreno-Sánchez, Mario
dc.contributor.author.spa.fl_str_mv Valencia-Morales, Yuly Tatiana
Toro Toro, Luz Mary
Ruiz-Jiménez, Elvira Cristina
Moreno-Sánchez, Mario
dc.subject.proposal.spa.fl_str_mv mineral assemblages
metamorphism
P-T path.
topic mineral assemblages
metamorphism
P-T path.
description Based on the type locality mineral associations of the Arquía Group metamorphic rocks in Colombia, the pressure-temperature conditions of metamorphism were obtained and the associated P-T path was built. The analysis of the mineral assemblages indicates a prograde regional metamorphism, which varies from low to medium grade and is represented by greenschist, epidote-amphibolite and amphibolite facies. The results that are based on the prograde mineralogy [actinolite + chlorite + albite + quartz + muscovite + epidote minerals for greenschist facies and hornblende + epidote minerals + garnet + albite ± quartz for epidote-amphibolite and amphibolite facies] indicate a constant increase of metamorphic conditions from 433°C/11.8 kbar to 696°C/14.4 kbar in the metamorphic peak. Retrograde mineral assemblages [muscovite + chlorite + epidote minerals + albite + actinolite] indicate new metamorphic conditions between 417-357°C and 8.1-6.5 kbar. In addition, four deformation events and evidence of shear zone and intracrystalline deformation were found in these rocks. ResumenCon base en las asociaciones minerales existentes en las rocas metamórficas del Grupo Arquía en su sección tipo en Colombia, se determinaron las condiciones de presión-temperatura del metamorfismo y se construyó la trayectoria P-T que siguieron estas rocas. El análisis de las asociaciones minerales es consistente con un metamorfismo regional progrado de bajo a medio grado, representado por facies de esquistos verdes, facies epidota-anfibolita y facies anfibolita. Las asociaciones minerales progradas [actinolita + clorita + albita + cuarzo + moscovita + epidota en facies de esquistos verdes y hornblenda + epidota + granate + albita ± cuarzo en facies epidota-anfibolita and anfibolita] indican un aumento cons- tante en las condiciones del metamorfismo, desde 433°C/11.8 kbar hasta 696°C/14.4 kbar en el pico metamórfico. Las asociaciones minerales retrogradas [moscovita + clorita + epidota + albita + actinolita] señalan nuevas condiciones metamórficas entre 417-357°C y 8.1-6.5 kbar. Adicionalmente, estas rocas evidencian cuatro eventos de deformación, presencia de zonas de cizalla y deformación cristalina.
publishDate 2013
dc.date.issued.spa.fl_str_mv 2013
dc.date.accessioned.spa.fl_str_mv 2019-06-28T12:40:03Z
dc.date.available.spa.fl_str_mv 2019-06-28T12:40:03Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
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http://bdigital.unal.edu.co/34021/2/
url https://repositorio.unal.edu.co/handle/unal/43923
http://bdigital.unal.edu.co/34021/
http://bdigital.unal.edu.co/34021/2/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/esrj/article/view/34026
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal
Earth Sciences Research Journal
dc.relation.ispartofseries.none.fl_str_mv Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) 2339-3459 1794-6190
dc.relation.references.spa.fl_str_mv Valencia-Morales, Yuly Tatiana and Toro Toro, Luz Mary and Ruiz-Jiménez, Elvira Cristina and Moreno-Sánchez, Mario (2013) Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages. Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) 2339-3459 1794-6190 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
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dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
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dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv UNIVERSIDAD NACIONAL DE COLOMBIA
institution Universidad Nacional de Colombia
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Valencia-Morales, Yuly Tatianaa3482cd8-bdf4-4bb3-9627-3b45984c5669300Toro Toro, Luz Mary75b7cd65-594a-4c55-b4d3-f0e665911a3d300Ruiz-Jiménez, Elvira Cristinad2e495b0-054e-452e-a9a7-65df5b74c912300Moreno-Sánchez, Mario7fad6f0c-e0de-49be-b899-1d6ea44afaa03002019-06-28T12:40:03Z2019-06-28T12:40:03Z2013https://repositorio.unal.edu.co/handle/unal/43923http://bdigital.unal.edu.co/34021/http://bdigital.unal.edu.co/34021/2/Based on the type locality mineral associations of the Arquía Group metamorphic rocks in Colombia, the pressure-temperature conditions of metamorphism were obtained and the associated P-T path was built. The analysis of the mineral assemblages indicates a prograde regional metamorphism, which varies from low to medium grade and is represented by greenschist, epidote-amphibolite and amphibolite facies. The results that are based on the prograde mineralogy [actinolite + chlorite + albite + quartz + muscovite + epidote minerals for greenschist facies and hornblende + epidote minerals + garnet + albite ± quartz for epidote-amphibolite and amphibolite facies] indicate a constant increase of metamorphic conditions from 433°C/11.8 kbar to 696°C/14.4 kbar in the metamorphic peak. Retrograde mineral assemblages [muscovite + chlorite + epidote minerals + albite + actinolite] indicate new metamorphic conditions between 417-357°C and 8.1-6.5 kbar. In addition, four deformation events and evidence of shear zone and intracrystalline deformation were found in these rocks. ResumenCon base en las asociaciones minerales existentes en las rocas metamórficas del Grupo Arquía en su sección tipo en Colombia, se determinaron las condiciones de presión-temperatura del metamorfismo y se construyó la trayectoria P-T que siguieron estas rocas. El análisis de las asociaciones minerales es consistente con un metamorfismo regional progrado de bajo a medio grado, representado por facies de esquistos verdes, facies epidota-anfibolita y facies anfibolita. Las asociaciones minerales progradas [actinolita + clorita + albita + cuarzo + moscovita + epidota en facies de esquistos verdes y hornblenda + epidota + granate + albita ± cuarzo en facies epidota-anfibolita and anfibolita] indican un aumento cons- tante en las condiciones del metamorfismo, desde 433°C/11.8 kbar hasta 696°C/14.4 kbar en el pico metamórfico. Las asociaciones minerales retrogradas [moscovita + clorita + epidota + albita + actinolita] señalan nuevas condiciones metamórficas entre 417-357°C y 8.1-6.5 kbar. Adicionalmente, estas rocas evidencian cuatro eventos de deformación, presencia de zonas de cizalla y deformación cristalina.application/pdfspaUNIVERSIDAD NACIONAL DE COLOMBIAhttp://revistas.unal.edu.co/index.php/esrj/article/view/34026Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research JournalEarth Sciences Research JournalEarth Sciences Research Journal; Vol. 17, núm. 2 (2013) Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) 2339-3459 1794-6190Valencia-Morales, Yuly Tatiana and Toro Toro, Luz Mary and Ruiz-Jiménez, Elvira Cristina and Moreno-Sánchez, Mario (2013) Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblages. Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) Earth Sciences Research Journal; Vol. 17, núm. 2 (2013) 2339-3459 1794-6190 .Pressure-temperature path of arquía group rocks (nw colombia): a petrographic analysis from mineral assemblagesArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTmineral assemblagesmetamorphismP-T path.ORIGINAL34026-200279-1-PB.pdfapplication/pdf6124089https://repositorio.unal.edu.co/bitstream/unal/43923/1/34026-200279-1-PB.pdfd82c4314133af81bb403d7c30668e679MD5134026-129661-1-SP.docxapplication/vnd.openxmlformats-officedocument.wordprocessingml.document2310137https://repositorio.unal.edu.co/bitstream/unal/43923/2/34026-129661-1-SP.docx33c71b271070024c9dfff86cd9b28d53MD52THUMBNAIL34026-200279-1-PB.pdf.jpg34026-200279-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg7924https://repositorio.unal.edu.co/bitstream/unal/43923/3/34026-200279-1-PB.pdf.jpg9ded988d0a5f545bbf967764d922357dMD53unal/43923oai:repositorio.unal.edu.co:unal/439232023-02-15 23:07:03.599Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co