Petrography, geochemistry and age of Cerro Frontino Gabro
The Gabro de Cerro Frontino was emplaced in the Cañasgordas Block, located in the Northern Segment of the Colombian Western Cordillera. It corresponds to a pluton composed of at least three magmatic pulses, emplaced during a short period of time. Gabbros and diorites are more common in the unit than...
- Autores:
-
Rodríguez-García, Gabriel
Bermúdez-Cordero, Jose Gilberto
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2015
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/61855
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/61855
http://bdigital.unal.edu.co/60667/
- Palabra clave:
- 55 Ciencias de la tierra / Earth sciences and geology
Gabro de Cerro Frontino
Western Cordillera
Botón Arc
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
id |
UNACIONAL2_e4d7614d2132d53c5a02411da39a0998 |
---|---|
oai_identifier_str |
oai:repositorio.unal.edu.co:unal/61855 |
network_acronym_str |
UNACIONAL2 |
network_name_str |
Universidad Nacional de Colombia |
repository_id_str |
|
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_abf2Rodríguez-García, Gabrieledc4ce74-d0de-4f47-b16b-e10b5b753bb9300Bermúdez-Cordero, Jose Gilberto9561c144-cb3d-4ab4-bff8-43d8be5b49da3002019-07-02T20:46:29Z2019-07-02T20:46:29Z2015-07-01ISSN: 2357-3740https://repositorio.unal.edu.co/handle/unal/61855http://bdigital.unal.edu.co/60667/The Gabro de Cerro Frontino was emplaced in the Cañasgordas Block, located in the Northern Segment of the Colombian Western Cordillera. It corresponds to a pluton composed of at least three magmatic pulses, emplaced during a short period of time. Gabbros and diorites are more common in the unit than clinopiroxenites, monzodiorites and monzonites. These rocks are composed of calcic to intermediate plagioclase, augite-egerine type clinopyroxene and biotite; olivine and flogopite may be present in some mafic rocks and alkali feldspar and quartz may be present in some felsic rocks. Sphene, magnetite and apatite are common accessory minerals. The silica content in the rocks varies between 37.08% and 54.4%, with constant values of MnO (0.1% 0.4%), impoverishment of Fe2O3, MgO, CaO, TiO2 and P2O5 as SiO2 increases, and enrichment of K2O, Na2O and Al2O3 as SiO2 increases. The basic and ultrabasic rocks fall in the subalkaline series, the rest of the samples fall in the medium to K-rich calc-alkaline series and in the shoshonitic series. The Gabro de Cerro Frontino corresponds to magmas impoverished on heavy rare earth elements with respect to light rare earth elements, which suggests the contribution of a subduction component in the magma genesis. The LILE (Sr, K, Rb, Pb, Ba) are enriched with respect to the HFSE values that are relatively flat and impoverished; the unit also exhibits a negative anomaly of Nb with respect to Th and Ce, being a magmatic arc the environment of generation. The ages obtained in biotite using the Ar-Ar method fall between 9.87±0.18 Ma and 11.44±0.36 Ma, Middle to upper Miocene (Tortonian-Serravallian), similar to age of other plutons that are part of the Botón Arc.application/pdfspaUniversidad Nacional de Colombia - Sede Medellín - Facultad de Minashttps://revistas.unal.edu.co/index.php/rbct/article/view/46053Universidad Nacional de Colombia Revistas electrónicas UN Boletín Ciencias de la TierraBoletín Ciencias de la TierraRodríguez-García, Gabriel and Bermúdez-Cordero, Jose Gilberto (2015) Petrography, geochemistry and age of Cerro Frontino Gabro. Boletín de Ciencias de la Tierra (38). pp. 25-40. ISSN 2357-374055 Ciencias de la tierra / Earth sciences and geologyGabro de Cerro FrontinoWestern CordilleraBotón ArcPetrography, geochemistry and age of Cerro Frontino GabroArtículo 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/ARTORIGINAL46053-255391-1-PB.pdfapplication/pdf9954521https://repositorio.unal.edu.co/bitstream/unal/61855/1/46053-255391-1-PB.pdfde19dc07f2462113be385747fac32dfdMD51THUMBNAIL46053-255391-1-PB.pdf.jpg46053-255391-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9431https://repositorio.unal.edu.co/bitstream/unal/61855/2/46053-255391-1-PB.pdf.jpg3a71ac35254af0b810e131f4dd5339bfMD52unal/61855oai:repositorio.unal.edu.co:unal/618552024-04-20 23:26:08.587Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Petrography, geochemistry and age of Cerro Frontino Gabro |
title |
Petrography, geochemistry and age of Cerro Frontino Gabro |
spellingShingle |
Petrography, geochemistry and age of Cerro Frontino Gabro 55 Ciencias de la tierra / Earth sciences and geology Gabro de Cerro Frontino Western Cordillera Botón Arc |
title_short |
Petrography, geochemistry and age of Cerro Frontino Gabro |
title_full |
Petrography, geochemistry and age of Cerro Frontino Gabro |
title_fullStr |
Petrography, geochemistry and age of Cerro Frontino Gabro |
title_full_unstemmed |
Petrography, geochemistry and age of Cerro Frontino Gabro |
title_sort |
Petrography, geochemistry and age of Cerro Frontino Gabro |
dc.creator.fl_str_mv |
Rodríguez-García, Gabriel Bermúdez-Cordero, Jose Gilberto |
dc.contributor.author.spa.fl_str_mv |
Rodríguez-García, Gabriel Bermúdez-Cordero, Jose Gilberto |
dc.subject.ddc.spa.fl_str_mv |
55 Ciencias de la tierra / Earth sciences and geology |
topic |
55 Ciencias de la tierra / Earth sciences and geology Gabro de Cerro Frontino Western Cordillera Botón Arc |
dc.subject.proposal.spa.fl_str_mv |
Gabro de Cerro Frontino Western Cordillera Botón Arc |
description |
The Gabro de Cerro Frontino was emplaced in the Cañasgordas Block, located in the Northern Segment of the Colombian Western Cordillera. It corresponds to a pluton composed of at least three magmatic pulses, emplaced during a short period of time. Gabbros and diorites are more common in the unit than clinopiroxenites, monzodiorites and monzonites. These rocks are composed of calcic to intermediate plagioclase, augite-egerine type clinopyroxene and biotite; olivine and flogopite may be present in some mafic rocks and alkali feldspar and quartz may be present in some felsic rocks. Sphene, magnetite and apatite are common accessory minerals. The silica content in the rocks varies between 37.08% and 54.4%, with constant values of MnO (0.1% 0.4%), impoverishment of Fe2O3, MgO, CaO, TiO2 and P2O5 as SiO2 increases, and enrichment of K2O, Na2O and Al2O3 as SiO2 increases. The basic and ultrabasic rocks fall in the subalkaline series, the rest of the samples fall in the medium to K-rich calc-alkaline series and in the shoshonitic series. The Gabro de Cerro Frontino corresponds to magmas impoverished on heavy rare earth elements with respect to light rare earth elements, which suggests the contribution of a subduction component in the magma genesis. The LILE (Sr, K, Rb, Pb, Ba) are enriched with respect to the HFSE values that are relatively flat and impoverished; the unit also exhibits a negative anomaly of Nb with respect to Th and Ce, being a magmatic arc the environment of generation. The ages obtained in biotite using the Ar-Ar method fall between 9.87±0.18 Ma and 11.44±0.36 Ma, Middle to upper Miocene (Tortonian-Serravallian), similar to age of other plutons that are part of the Botón Arc. |
publishDate |
2015 |
dc.date.issued.spa.fl_str_mv |
2015-07-01 |
dc.date.accessioned.spa.fl_str_mv |
2019-07-02T20:46:29Z |
dc.date.available.spa.fl_str_mv |
2019-07-02T20:46:29Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.issn.spa.fl_str_mv |
ISSN: 2357-3740 |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/61855 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/60667/ |
identifier_str_mv |
ISSN: 2357-3740 |
url |
https://repositorio.unal.edu.co/handle/unal/61855 http://bdigital.unal.edu.co/60667/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
https://revistas.unal.edu.co/index.php/rbct/article/view/46053 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Boletín Ciencias de la Tierra Boletín Ciencias de la Tierra |
dc.relation.references.spa.fl_str_mv |
Rodríguez-García, Gabriel and Bermúdez-Cordero, Jose Gilberto (2015) Petrography, geochemistry and age of Cerro Frontino Gabro. Boletín de Ciencias de la Tierra (38). pp. 25-40. ISSN 2357-3740 |
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 |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
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/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
dc.format.mimetype.spa.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
Universidad Nacional de Colombia - Sede Medellín - Facultad de Minas |
institution |
Universidad Nacional de Colombia |
bitstream.url.fl_str_mv |
https://repositorio.unal.edu.co/bitstream/unal/61855/1/46053-255391-1-PB.pdf https://repositorio.unal.edu.co/bitstream/unal/61855/2/46053-255391-1-PB.pdf.jpg |
bitstream.checksum.fl_str_mv |
de19dc07f2462113be385747fac32dfd 3a71ac35254af0b810e131f4dd5339bf |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositorio Institucional Universidad Nacional de Colombia |
repository.mail.fl_str_mv |
repositorio_nal@unal.edu.co |
_version_ |
1814089761697038336 |