In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean

It is thought that the western part of the Paleo-Amazon River had an east-west flow between the Cretaceous and the Miocene time. This drainage configuration allowed the transport of sediments from the north and central South America to the western part of the continent. In this study U/Pb, trace ele...

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Autores:
Marroquín Gómez, María Paula
Tipo de recurso:
Trabajo de grado de pregrado
Fecha de publicación:
2018
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
spa
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/39301
Acceso en línea:
http://hdl.handle.net/1992/39301
Palabra clave:
Geoquímica
Circón
Petrología
Geociencias
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-sa/4.0/
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spelling Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Rojas-Agramonte, Yamirkafb006d3c-7104-47dd-b690-0aaa053991a1600Montes Rodríguez, Camilo33020281-bf41-433a-8155-f859f0a5cf00600Marroquín Gómez, María Paulaacea5947-15bd-4a5e-888e-0c9f7847ddee500Pardo Villaveces, Natalia2020-06-10T16:09:41Z2020-06-10T16:09:41Z2018http://hdl.handle.net/1992/39301u821219.pdfinstname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/It is thought that the western part of the Paleo-Amazon River had an east-west flow between the Cretaceous and the Miocene time. This drainage configuration allowed the transport of sediments from the north and central South America to the western part of the continent. In this study U/Pb, trace elements and typological analyses for detrital zircons from Ecuador showed evidence of this flow direction. Furthermore, the Ecuador zircon ages were compared with Gorgona and Galapagos zircon ages that were reported in a previous study. From this, it exists a possible relation between zircons transported by active river sediments and detrital zircons found in Gorgona Island sands. Finally, it is proposed a possible origin for zircons found in Galapagos sands using the Paleo-Amazon River hypothesis.Se piensa que la parte occidental del Río Paleo-Amazonas tenía una dirección de flujo este-oeste durante el Cretácico y el Mioceno. La configuración de este drenaje permitió el transporte de sedimentos desde el norte y el centro de Sudamerica hasta la parte occidental del continente. En este estudio, los análisis de U/Pb, elementos traza y tipología de circones de Ecuador mostraron evidencias de esta dirección de flujo. Además, las edades de los circones encontrados en Ecuador fueron comparadas con edades de circones de Gorgona y Galápagos, reportadas en un estudio anterior. A partir de esto, se sugiere una posible relación entre los circones transportados por sedimentos de ríos actuales y, los encontrados en las arenas de la isla de Gorgona. Finalmente, usando la hipótesis del Paleo-Amazonas se propone un origen posible para circones encontrados en arenas de GalápagosGeocientíficoPregrado25 hojasapplication/pdfspaUniversidad de los AndesGeocienciasFacultad de CienciasDepartamento de Geocienciasinstname:Universidad de los Andesreponame:Repositorio Institucional SénecaIn search of the Paleo-Amazon river connection between the northern South America and the Pacific OceanTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesishttp://purl.org/coar/resource_type/c_7a1fhttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TPGeoquímicaCircónPetrologíaGeocienciasPublicationORIGINALu821219.pdfapplication/pdf14765778https://repositorio.uniandes.edu.co/bitstreams/1ca21a72-0b39-4b44-b08a-ae2163138835/download1af4fe9b8191bc58a2f2c5f387e52711MD51THUMBNAILu821219.pdf.jpgu821219.pdf.jpgIM Thumbnailimage/jpeg9015https://repositorio.uniandes.edu.co/bitstreams/980109ca-65b2-4c41-9400-c7638dc60b8b/downloadbf57d6e2ad20107748769d03e3705753MD55TEXTu821219.pdf.txtu821219.pdf.txtExtracted texttext/plain50285https://repositorio.uniandes.edu.co/bitstreams/3b55f509-52c2-4512-9d96-0b87ddb5de54/download0290755b008bd124f08ceb20d59182a3MD541992/39301oai:repositorio.uniandes.edu.co:1992/393012023-10-10 16:00:37.973http://creativecommons.org/licenses/by-nc-sa/4.0/open.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co
dc.title.es_CO.fl_str_mv In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
title In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
spellingShingle In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
Geoquímica
Circón
Petrología
Geociencias
title_short In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
title_full In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
title_fullStr In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
title_full_unstemmed In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
title_sort In search of the Paleo-Amazon river connection between the northern South America and the Pacific Ocean
dc.creator.fl_str_mv Marroquín Gómez, María Paula
dc.contributor.advisor.none.fl_str_mv Rojas-Agramonte, Yamirka
Montes Rodríguez, Camilo
dc.contributor.author.none.fl_str_mv Marroquín Gómez, María Paula
dc.contributor.jury.none.fl_str_mv Pardo Villaveces, Natalia
dc.subject.keyword.es_CO.fl_str_mv Geoquímica
Circón
Petrología
topic Geoquímica
Circón
Petrología
Geociencias
dc.subject.themes.none.fl_str_mv Geociencias
description It is thought that the western part of the Paleo-Amazon River had an east-west flow between the Cretaceous and the Miocene time. This drainage configuration allowed the transport of sediments from the north and central South America to the western part of the continent. In this study U/Pb, trace elements and typological analyses for detrital zircons from Ecuador showed evidence of this flow direction. Furthermore, the Ecuador zircon ages were compared with Gorgona and Galapagos zircon ages that were reported in a previous study. From this, it exists a possible relation between zircons transported by active river sediments and detrital zircons found in Gorgona Island sands. Finally, it is proposed a possible origin for zircons found in Galapagos sands using the Paleo-Amazon River hypothesis.
publishDate 2018
dc.date.issued.none.fl_str_mv 2018
dc.date.accessioned.none.fl_str_mv 2020-06-10T16:09:41Z
dc.date.available.none.fl_str_mv 2020-06-10T16:09:41Z
dc.type.spa.fl_str_mv Trabajo de grado - Pregrado
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identifier_str_mv u821219.pdf
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dc.language.iso.es_CO.fl_str_mv spa
language spa
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dc.format.extent.es_CO.fl_str_mv 25 hojas
dc.format.mimetype.es_CO.fl_str_mv application/pdf
dc.publisher.es_CO.fl_str_mv Universidad de los Andes
dc.publisher.program.es_CO.fl_str_mv Geociencias
dc.publisher.faculty.es_CO.fl_str_mv Facultad de Ciencias
dc.publisher.department.es_CO.fl_str_mv Departamento de Geociencias
dc.source.es_CO.fl_str_mv instname:Universidad de los Andes
reponame:Repositorio Institucional Séneca
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