Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes)
Eclogites discovered on southwestern Pijao, Central Cordillera (Colombia Andes), are enriched in almandine (Xalm = 0.50-0.58; XFe = 0.69-0.83) and grossular (Xgrs = 0.25-0.30), with lesser amounts of pyrope (Xprp = 0.12-0.23), and relatively low spessartine (Xsps = 0.01-0.05), and the omphacite the...
- Autores:
-
Ríos-Reyes, Carlos Alberto
Castellanos-Alarcón, Oscar Mauricio
García-Ramírez, Carlos Alberto
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2017
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/60413
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/60413
http://bdigital.unal.edu.co/58745/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
eclogites
PT conditions
symplectites
garnet-omphacite
Central Cordillera
Arquía Complex
subduction
eclogitas
condiciones de PT
simplectitas
granate-onfacita
Cordillera Central
Complejo Arquía
subducción
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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| dc.title.spa.fl_str_mv |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| title |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| spellingShingle |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) 62 Ingeniería y operaciones afines / Engineering eclogites PT conditions symplectites garnet-omphacite Central Cordillera Arquía Complex subduction eclogitas condiciones de PT simplectitas granate-onfacita Cordillera Central Complejo Arquía subducción |
| title_short |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| title_full |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| title_fullStr |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| title_full_unstemmed |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| title_sort |
Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes) |
| dc.creator.fl_str_mv |
Ríos-Reyes, Carlos Alberto Castellanos-Alarcón, Oscar Mauricio García-Ramírez, Carlos Alberto |
| dc.contributor.author.spa.fl_str_mv |
Ríos-Reyes, Carlos Alberto Castellanos-Alarcón, Oscar Mauricio García-Ramírez, Carlos Alberto |
| dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
| topic |
62 Ingeniería y operaciones afines / Engineering eclogites PT conditions symplectites garnet-omphacite Central Cordillera Arquía Complex subduction eclogitas condiciones de PT simplectitas granate-onfacita Cordillera Central Complejo Arquía subducción |
| dc.subject.proposal.spa.fl_str_mv |
eclogites PT conditions symplectites garnet-omphacite Central Cordillera Arquía Complex subduction eclogitas condiciones de PT simplectitas granate-onfacita Cordillera Central Complejo Arquía subducción |
| description |
Eclogites discovered on southwestern Pijao, Central Cordillera (Colombia Andes), are enriched in almandine (Xalm = 0.50-0.58; XFe = 0.69-0.83) and grossular (Xgrs = 0.25-0.30), with lesser amounts of pyrope (Xprp = 0.12-0.23), and relatively low spessartine (Xsps = 0.01-0.05), and the omphacite the contents of jadeite, acmite and augite in the analyzed clinopyroxene are 7.00, 3.19 and 89.80 mol%; XMg= 0.82. The eclogites underwent a clockwise PT trajectory with a post-Ppeak (at 10.5 kbar and 535°C) slight increase of temperature to a maximum (Tpeak) about 8.5 kbar and 575°C and a subsequent cooling during decompression to about 4.5 kbar and 530°C.Geochemical data indicate protoliths that correspond to basalts from normal type mid-ocean ridges (NMORB). All these features suggest that ophiolite remnants are involved in the subduction and final architecture of the Arquía Complex. The progressive convergence led to the formation of the eclogite facies assemblages at the maximum depth in the continental crust. The eclogites reported in this study represent an excellent example of high-pressure metamorphic rocks in orogenic belts, very useful to understanding plate subduction and continent collision processes. |
| publishDate |
2017 |
| dc.date.issued.spa.fl_str_mv |
2017-01-01 |
| dc.date.accessioned.spa.fl_str_mv |
2019-07-02T18:15:39Z |
| dc.date.available.spa.fl_str_mv |
2019-07-02T18:15:39Z |
| dc.type.spa.fl_str_mv |
Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Text |
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http://purl.org/redcol/resource_type/ART |
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http://purl.org/coar/resource_type/c_6501 |
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publishedVersion |
| dc.identifier.issn.spa.fl_str_mv |
ISSN: 2346-2183 |
| dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/60413 |
| dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/58745/ |
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ISSN: 2346-2183 |
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https://repositorio.unal.edu.co/handle/unal/60413 http://bdigital.unal.edu.co/58745/ |
| dc.language.iso.spa.fl_str_mv |
spa |
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spa |
| dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/dyna/article/view/48166 |
| dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Dyna Dyna |
| dc.relation.references.spa.fl_str_mv |
Ríos-Reyes, Carlos Alberto and Castellanos-Alarcón, Oscar Mauricio and García-Ramírez, Carlos Alberto (2017) Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes). DYNA, 84 (200). pp. 291-301. ISSN 2346-2183 |
| dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
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Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas. |
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Universidad Nacional de Colombia |
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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_abf2Ríos-Reyes, Carlos Albertoeca95664-2302-46e7-adc7-e47168e5f6e8300Castellanos-Alarcón, Oscar Mauricio45874de0-ff73-49ab-a6fe-b8e989d4291e300García-Ramírez, Carlos Alberto3b90b301-dd0e-4f5a-8ffa-ec8656ca41603002019-07-02T18:15:39Z2019-07-02T18:15:39Z2017-01-01ISSN: 2346-2183https://repositorio.unal.edu.co/handle/unal/60413http://bdigital.unal.edu.co/58745/Eclogites discovered on southwestern Pijao, Central Cordillera (Colombia Andes), are enriched in almandine (Xalm = 0.50-0.58; XFe = 0.69-0.83) and grossular (Xgrs = 0.25-0.30), with lesser amounts of pyrope (Xprp = 0.12-0.23), and relatively low spessartine (Xsps = 0.01-0.05), and the omphacite the contents of jadeite, acmite and augite in the analyzed clinopyroxene are 7.00, 3.19 and 89.80 mol%; XMg= 0.82. The eclogites underwent a clockwise PT trajectory with a post-Ppeak (at 10.5 kbar and 535°C) slight increase of temperature to a maximum (Tpeak) about 8.5 kbar and 575°C and a subsequent cooling during decompression to about 4.5 kbar and 530°C.Geochemical data indicate protoliths that correspond to basalts from normal type mid-ocean ridges (NMORB). All these features suggest that ophiolite remnants are involved in the subduction and final architecture of the Arquía Complex. The progressive convergence led to the formation of the eclogite facies assemblages at the maximum depth in the continental crust. The eclogites reported in this study represent an excellent example of high-pressure metamorphic rocks in orogenic belts, very useful to understanding plate subduction and continent collision processes.Las eclogitas descubiertas en el suroeste de Pijao, Cordillera Central (Colombia Andes), son ricas en almandino (Xalm = 0.50-0.58; XFe = 0.69-0.83) y grosularia (Xgrs = 0.25-0.30), con cantidades menores de piropo (Xprp = 0.12-0.23) y relativamente baja espesartina (Xsps = 0.01-0.05), y la onfacita presenta contenidos de jadeíta, acmita y augita en el clinopiroxeno analizado de 7,00, 3,19 y 89,80% en moles; XMg= 0.82. Las eclogitas sufrieron una trayectoria PT en sentido horario con un ligero aumento de temperatura posterior al Ppeak (a 10.5 kbar y 535°C) a un máximo (Tpeak) a 8.5 kbar and 575°C y un posterior enfriamiento durante la descompresión a 4.5 kbar and 530°C. Los datos geoquímicos indican protolitos que corresponden a basaltos de tipo dorsales oceánicas normales (NMORB). Todas estas características sugieren que los remanentes ofiolíticos están involucrados en la subducción y arquitectura final del Complejo Arquía. La progresiva convergencia condujo a la formación de las asociaciones de la facies eclogites a la máxima profundidad en la corteza continental. Las eclogitas reportadas en este estudio representan un excelente ejemplo de rocas metamórficas de alta presión en cinturones orogénicos, muy útil para la comprensión de subducción de placas y los procesos de colisión de los continentes.application/pdfspaUniversidad Nacional de Colombia (Sede Medellín). Facultad de Minas.https://revistas.unal.edu.co/index.php/dyna/article/view/48166Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaRíos-Reyes, Carlos Alberto and Castellanos-Alarcón, Oscar Mauricio and García-Ramírez, Carlos Alberto (2017) Petrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes). DYNA, 84 (200). pp. 291-301. ISSN 2346-218362 Ingeniería y operaciones afines / EngineeringeclogitesPT conditionssymplectitesgarnet-omphaciteCentral CordilleraArquía Complexsubductioneclogitascondiciones de PTsimplectitasgranate-onfacitaCordillera CentralComplejo ArquíasubducciónPetrogenetic significance of the eclogites from the Arquía Complex on southwestern Pijao, Central Cordillera (Colombia Andes)Artículo 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/ARTORIGINAL48166-322179-2-PB.pdfapplication/pdf1764553https://repositorio.unal.edu.co/bitstream/unal/60413/1/48166-322179-2-PB.pdfe5e6c1f7e45897ea4b5a0f82b5e0bf5bMD51THUMBNAIL48166-322179-2-PB.pdf.jpg48166-322179-2-PB.pdf.jpgGenerated Thumbnailimage/jpeg10205https://repositorio.unal.edu.co/bitstream/unal/60413/2/48166-322179-2-PB.pdf.jpgac0c55c03a9cc13d5ccc8133047768f0MD52unal/60413oai:repositorio.unal.edu.co:unal/604132023-04-06 23:05:59.547Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |