The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology
Paipa volcano products are mainly pyroclastic pumice and ash flow tuffs, lava domes and pyroclastic block and ash flow tuffs. They are classified as alkaline rhyolites and trachytes and high-K calcalkaline rhyolites. Chemical data show SiO2 values between 68 and 72%, and alkalis (Na2O+K2O) content o...
- Autores:
-
Pardo Villaveces, Natalia
Jaramillo, José María
Cepeda, Héctor
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2005
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/34051
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/34051
http://bdigital.unal.edu.co/24131/
- Palabra clave:
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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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_abf2Pardo Villaveces, Natalia3dc0818b-be96-461b-b1ca-b2222038146a300Jaramillo, José María6059b615-a79f-4233-ae70-3ed1eb7f55c0300Cepeda, Héctor1df34fe2-70d0-4719-886c-d396591464223002019-06-27T23:11:12Z2019-06-27T23:11:12Z2005https://repositorio.unal.edu.co/handle/unal/34051http://bdigital.unal.edu.co/24131/Paipa volcano products are mainly pyroclastic pumice and ash flow tuffs, lava domes and pyroclastic block and ash flow tuffs. They are classified as alkaline rhyolites and trachytes and high-K calcalkaline rhyolites. Chemical data show SiO2 values between 68 and 72%, and alkalis (Na2O+K2O) content of 7%-10%. Essential minerals are phenocrysts and glomerocrysts of anorthoclase, sanidine up to 1,5 cm and anorthoclase-mantled plagioclase; accessory minerals are red biotite, and hastingsite while trace minerals are augite, zircon, sphene and magnetite. Crystals have disequilibrium textures, such as dissolution embayments, corrosion and reabsortion borders, normal, inverse, oscillating and patchy zonation, together with fibrous borders intercalated with euhedral borders. In correlation with published data of Iza volcanic rocks, Paipa rocks chemical composition confirms that acid and alkaline magmas that have erupted in the Eastern Cordillera of Colombia during the Neogene are strongly different from the calc-alkaline magmas that erupt in the westward active arc (Central Cordillera). Detailed structural, geochemical and geophysical research has to be done in future research to establish the geodynamic framework that governs the volcanism of the Eastern Cordillera.application/pdfspaUNIVERSIDAD NACIONAL DE COLOMBIAhttp://revistas.unal.edu.co/index.php/esrj/article/view/21248Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research JournalEarth Sciences Research JournalEarth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 Earth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 2339-3459 1794-6190Pardo Villaveces, Natalia and Jaramillo, José María and Cepeda, Héctor (2005) The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology. Earth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 Earth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 2339-3459 1794-6190 .The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrologyArtículo 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/ARTORIGINAL21248-72171-1-PB.pdfapplication/pdf2501058https://repositorio.unal.edu.co/bitstream/unal/34051/1/21248-72171-1-PB.pdf219f7cd168dfa9049b3cb19c570f84a8MD51THUMBNAIL21248-72171-1-PB.pdf.jpg21248-72171-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg7758https://repositorio.unal.edu.co/bitstream/unal/34051/2/21248-72171-1-PB.pdf.jpg747c750fa0a6918bd84ee3689d77107eMD52unal/34051oai:repositorio.unal.edu.co:unal/340512022-12-29 23:03:21.918Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
title |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
spellingShingle |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
title_short |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
title_full |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
title_fullStr |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
title_full_unstemmed |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
title_sort |
The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology |
dc.creator.fl_str_mv |
Pardo Villaveces, Natalia Jaramillo, José María Cepeda, Héctor |
dc.contributor.author.spa.fl_str_mv |
Pardo Villaveces, Natalia Jaramillo, José María Cepeda, Héctor |
description |
Paipa volcano products are mainly pyroclastic pumice and ash flow tuffs, lava domes and pyroclastic block and ash flow tuffs. They are classified as alkaline rhyolites and trachytes and high-K calcalkaline rhyolites. Chemical data show SiO2 values between 68 and 72%, and alkalis (Na2O+K2O) content of 7%-10%. Essential minerals are phenocrysts and glomerocrysts of anorthoclase, sanidine up to 1,5 cm and anorthoclase-mantled plagioclase; accessory minerals are red biotite, and hastingsite while trace minerals are augite, zircon, sphene and magnetite. Crystals have disequilibrium textures, such as dissolution embayments, corrosion and reabsortion borders, normal, inverse, oscillating and patchy zonation, together with fibrous borders intercalated with euhedral borders. In correlation with published data of Iza volcanic rocks, Paipa rocks chemical composition confirms that acid and alkaline magmas that have erupted in the Eastern Cordillera of Colombia during the Neogene are strongly different from the calc-alkaline magmas that erupt in the westward active arc (Central Cordillera). Detailed structural, geochemical and geophysical research has to be done in future research to establish the geodynamic framework that governs the volcanism of the Eastern Cordillera. |
publishDate |
2005 |
dc.date.issued.spa.fl_str_mv |
2005 |
dc.date.accessioned.spa.fl_str_mv |
2019-06-27T23:11:12Z |
dc.date.available.spa.fl_str_mv |
2019-06-27T23:11:12Z |
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 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/34051 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/24131/ |
url |
https://repositorio.unal.edu.co/handle/unal/34051 http://bdigital.unal.edu.co/24131/ |
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/21248 |
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. 9, núm. 2 (2005); 148-164 Earth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 2339-3459 1794-6190 |
dc.relation.references.spa.fl_str_mv |
Pardo Villaveces, Natalia and Jaramillo, José María and Cepeda, Héctor (2005) The paipa volcano, eastern cordillera of colombia, south america (part ii): petrography and major elements petrology. Earth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 Earth Sciences Research Journal; Vol. 9, núm. 2 (2005); 148-164 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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http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
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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UNIVERSIDAD NACIONAL DE COLOMBIA |
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Universidad Nacional de Colombia |
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