Estructura y evolución tectónica del valle medio y superior del magdalena, colombia

Present work concerns with the structure and evolution of the Upper and Middle Magdalena Valley, a geomorphological depression separating the Colombian Central and Eastern Cordilleras. It constitutes a fringe of an orographically continuous lower land but with conspicuous differences in stratigraphy...

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Autores:
Mojica, Jairo
Franco, Ricardo
Tipo de recurso:
Article of journal
Fecha de publicación:
1990
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/41363
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/41363
http://bdigital.unal.edu.co/31460/
Palabra clave:
Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
id UNACIONAL2_e60e28c7bb24b977d2bffdb99b2a40be
oai_identifier_str oai:repositorio.unal.edu.co:unal/41363
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
title Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
spellingShingle Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
title_short Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
title_full Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
title_fullStr Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
title_full_unstemmed Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
title_sort Estructura y evolución tectónica del valle medio y superior del magdalena, colombia
dc.creator.fl_str_mv Mojica, Jairo
Franco, Ricardo
dc.contributor.author.spa.fl_str_mv Mojica, Jairo
Franco, Ricardo
dc.subject.proposal.spa.fl_str_mv Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
topic Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
Geología
Ciencias de la tierra
Geociencias
Evolución geológica
tectónica
etapas deformativas
description Present work concerns with the structure and evolution of the Upper and Middle Magdalena Valley, a geomorphological depression separating the Colombian Central and Eastern Cordilleras. It constitutes a fringe of an orographically continuous lower land but with conspicuous differences in stratigraphy and tectonics; its evolution goes back to early mesozoics times and is the result of diverse deformative events, mainly of distensional type during the Mesozoic, compressional during the Cenozoic. The boundary between the Upper (UMV) and the Middle (MMV) Magdalena Valley is to be found in an area, just north of Girardot, and Honda; however, its location depends on the type of arguments used to define it, e.g. presence of major structural elements such as the oblique passing Cambao-Ibagué Fault- System, the narrowing of the valley due to crossing of fold axis along the Guataquí- Piedras line, or the marked differences in the characteristics and ages of the economic basement detected north and southwards of Honda. The UMV shows a dominant compressive structural style, with combined thrusting and folding, that is present on both sides of the valley. Tectonic displacements are directed toward the center of the depression and may reach up to tens of kilometers as result of accumulated movement along several detachement surfaces In soft and non competent units In the sedimentary cover, as those known In the Villeta and Guaduas Groups. These processes have generated diverse Imbricated tectonic fans, some of which are thick-skinned and basement nucleated, other thin-skinned, thus not· affecting the precretaceous fundament. In the MMV compressive tectonics with reverse and/or low angle faulting is restricted to the eastern portion; on the contrary, to the west and near the Central Cordillera the deformation is mainly caused by normal faulting active in different episodes; therefore thinning and pinch outs of the distinct meso and cenozoic formations are common. Accordingly and for oil prospecting purposes, It seems evident that in the UMV and in the eastern half of the MMV expected traps have to be more of structural type, thus contrasting with those combined stratigraphic-tectonic ones observed In the western portion of the MMV.
publishDate 1990
dc.date.issued.spa.fl_str_mv 1990
dc.date.accessioned.spa.fl_str_mv 2019-06-28T09:58:38Z
dc.date.available.spa.fl_str_mv 2019-06-28T09:58:38Z
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
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dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/41363
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/31460/
url https://repositorio.unal.edu.co/handle/unal/41363
http://bdigital.unal.edu.co/31460/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/geocol/article/view/30633
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Geología Colombiana
Geología Colombiana
dc.relation.ispartofseries.none.fl_str_mv Geología Colombiana - An International Journal on Geosciences; Vol. 17 (1990); 41-64 Geología Colombiana; Vol. 17 (1990); 41-64 2357-3767 0072-0992
dc.relation.references.spa.fl_str_mv Mojica, Jairo and Franco, Ricardo (1990) Estructura y evolución tectónica del valle medio y superior del magdalena, colombia. Geología Colombiana - An International Journal on Geosciences; Vol. 17 (1990); 41-64 Geología Colombiana; Vol. 17 (1990); 41-64 2357-3767 0072-0992 .
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/
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eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Departamento de Geociencias
institution Universidad Nacional de Colombia
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