Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia
Las Ánimas es un complejo volcánico ubicado en los Andes del Norte de Colombia, sobre la Cordillera Central. En este estudio se presenta el análisis de roca total de elementos mayores y traza para 19 muestras de pómez provenientes de Las Ánimas, las cuales corresponden a andesitas y dacitas calcoalc...
- Autores:
-
Aldana Lozano, Ciro Alejandro
- Tipo de recurso:
- Trabajo de grado de pregrado
- Fecha de publicación:
- 2022
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/64295
- Acceso en línea:
- http://hdl.handle.net/1992/64295
- Palabra clave:
- Complejo Volcánico Las Ánimas
Cristalización fraccionada
Diferenciación magmática
Geoquímica de roca total
Petrogénesis
Geociencias
- Rights
- openAccess
- License
- Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| title |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| spellingShingle |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia Complejo Volcánico Las Ánimas Cristalización fraccionada Diferenciación magmática Geoquímica de roca total Petrogénesis Geociencias |
| title_short |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| title_full |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| title_fullStr |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| title_full_unstemmed |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| title_sort |
Caracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, Colombia |
| dc.creator.fl_str_mv |
Aldana Lozano, Ciro Alejandro |
| dc.contributor.advisor.none.fl_str_mv |
Pardo Villaveces, Natalia |
| dc.contributor.author.none.fl_str_mv |
Aldana Lozano, Ciro Alejandro |
| dc.contributor.jury.none.fl_str_mv |
Sierra Rojas, Maria Isabel |
| dc.subject.keyword.none.fl_str_mv |
Complejo Volcánico Las Ánimas Cristalización fraccionada Diferenciación magmática Geoquímica de roca total Petrogénesis |
| topic |
Complejo Volcánico Las Ánimas Cristalización fraccionada Diferenciación magmática Geoquímica de roca total Petrogénesis Geociencias |
| dc.subject.themes.es_CO.fl_str_mv |
Geociencias |
| description |
Las Ánimas es un complejo volcánico ubicado en los Andes del Norte de Colombia, sobre la Cordillera Central. En este estudio se presenta el análisis de roca total de elementos mayores y traza para 19 muestras de pómez provenientes de Las Ánimas, las cuales corresponden a andesitas y dacitas calcoalcalinas. Las variaciones de elementos mayores y traza indican el fraccionamiento de plagioclasa, anfíbol, piroxeno y óxidos Fe-Ti. Las tendencias químicas podrían indicar que la cristalización fraccionada no explica todos los datos y pudo haber influencia de otros procesos, tales como la contaminación cortical. También se analizaron 4 láminas delgadas donde se corroboró la cristalización de los minerales ya mencionados y se obtuvo soporte textural de las distintas fases. En particular, no se encontró evidencia textural de desequilibrio químico. No obstante, dada la ausencia de información isotópica y la limitada cantidad de muestras analizadas petrográficamente, se sugiere la elaboración de estudios que permitan complementar estos análisis. |
| publishDate |
2022 |
| dc.date.issued.none.fl_str_mv |
2022-12 |
| dc.date.accessioned.none.fl_str_mv |
2023-01-27T19:34:25Z |
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2023-01-27T19:34:25Z |
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Trabajo de grado - Pregrado |
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info:eu-repo/semantics/bachelorThesis |
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Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttps://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdfinfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Pardo Villaveces, Nataliaa5c48d89-4a72-42a6-b19f-5691a5d8b242600Aldana Lozano, Ciro Alejandroc062d94f-5d57-48e8-9723-5a7cff424ae1600Sierra Rojas, Maria Isabel2023-01-27T19:34:25Z2023-01-27T19:34:25Z2022-12http://hdl.handle.net/1992/64295instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Las Ánimas es un complejo volcánico ubicado en los Andes del Norte de Colombia, sobre la Cordillera Central. En este estudio se presenta el análisis de roca total de elementos mayores y traza para 19 muestras de pómez provenientes de Las Ánimas, las cuales corresponden a andesitas y dacitas calcoalcalinas. Las variaciones de elementos mayores y traza indican el fraccionamiento de plagioclasa, anfíbol, piroxeno y óxidos Fe-Ti. Las tendencias químicas podrían indicar que la cristalización fraccionada no explica todos los datos y pudo haber influencia de otros procesos, tales como la contaminación cortical. También se analizaron 4 láminas delgadas donde se corroboró la cristalización de los minerales ya mencionados y se obtuvo soporte textural de las distintas fases. En particular, no se encontró evidencia textural de desequilibrio químico. No obstante, dada la ausencia de información isotópica y la limitada cantidad de muestras analizadas petrográficamente, se sugiere la elaboración de estudios que permitan complementar estos análisis.Las Ánimas is a volcanic complex located in the Northern Andes of Colombia, in the Central Cordillera. This study presents whole-rock analysis of major and trace elements from 19 pumice samples from Las Ánimas, which correspond to calc-alkaline andesites and dacites. Major and trace element variations indicate the fractionation of plagioclase, amphibole, pyroxene and Fe-Ti oxides. Chemical trends suggest crustal contamination during magmatic evolution. Four thin sections were also analysed to corroborate the crystallization of the aforementioned minerals. In addition, textural characteristics were studied where no evidence of disequilibrium was found. However, given the absence of isotopic information and the limited number of samples analysed petrographically, further studies are needed to complement these analyses.GeocientíficoPregrado41 páginasapplication/pdfspaUniversidad de los AndesGeocienciasFacultad de CienciasDepartamento de GeocienciasCaracterización geoquímica de la Formación La Cruz, Complejo Volcánico Las Animas, Nariño-Cauca, ColombiaTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1fTexthttp://purl.org/redcol/resource_type/TPComplejo Volcánico Las ÁnimasCristalización fraccionadaDiferenciación magmáticaGeoquímica de roca totalPetrogénesisGeocienciasAnderson, A. T. (1976). Magma mixing: petrological process and volcanological tool. Journal of Volcanology and Geothermal Research, 1(1), 3-33.Arce, J. L., Walker, J., & Keppie, J. D. (2014). 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