Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico
The Tunja syncline is located at the northern termination of the Altiplano of the Eastern Cordillera, which constitutes a distinct physiographic province in the central part of the Eastern Cordillera between the cities of Bogota and Tunja. Together with its bordering basement cored anticlines, the A...
- Autores:
-
Kammer, Andreas
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 1997
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/41996
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/41996
http://bdigital.unal.edu.co/32093/
- Palabra clave:
- Geología
Ciencias de la tierra
Geociencias
Tunja Syncline
Structural Analysis
Geología
Ciencias de la tierra
Geociencias
Sinclinal de Tunja
Análisis Estructural
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Universidad Nacional de Colombia |
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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_abf2Kammer, Andreas2417f128-8177-426d-a932-a6bc823a7a633002019-06-28T10:25:57Z2019-06-28T10:25:57Z1997https://repositorio.unal.edu.co/handle/unal/41996http://bdigital.unal.edu.co/32093/The Tunja syncline is located at the northern termination of the Altiplano of the Eastern Cordillera, which constitutes a distinct physiographic province in the central part of the Eastern Cordillera between the cities of Bogota and Tunja. Together with its bordering basement cored anticlines, the Arcabuco and Toca anticline, it belongs to the Cordillera's first-order structures which are characterized by longitudinal continuities of several hundred kms and display, as a further outstanding feature, an eastern vergence. Superposed on this large scale disposition, trains of second-order folds with lengths of 100 km or less form the next important oroqraphlc features. Some structural independence from the basement-cored structures is documented by their vergences which, at least in the Tunja syncline, consistently oppose the first-order dip directions. The fact that they attain higher amplitudes above the steeply inclined segments of the western flank of the Tunja syncline, suggests an origin by gravity sliding. Yet the observed strain pattern does not unambiguously supports a model of simple detachment folds, as a neutral or even extensive regime at a higher structural level gives way to increasingly compressive deformations at low structural levels. These relations argue for a model in which amplification of the folding occurs at the cost of a homogeneous shortening near the basement-cover contact. A linear geometric extrapolation between oberved surficial folds and a supposedly unfolded basement-cover interface predicts a strain pattern, which is in good agreement with the observed deformations. A third-order, small scale folding affects only strata which have been eroded across anticlinal crests. These structures present themselves as flaps or cascade folds with vergences according to the dip direction of the higher order folds. For their origin a gravitational collapse during a latest stage of the folding process may be advocated.application/pdfspaDepartamento de Geocienciashttp://revistas.unal.edu.co/index.php/geocol/article/view/31440Universidad Nacional de Colombia Revistas electrónicas UN Geología ColombianaGeología ColombianaGeología Colombiana - An International Journal on Geosciences; Vol. 22 (1997); 3-25 Geología Colombiana; Vol. 22 (1997); 3-25 2357-3767 0072-0992Kammer, Andreas (1997) Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico. Geología Colombiana - An International Journal on Geosciences; Vol. 22 (1997); 3-25 Geología Colombiana; Vol. 22 (1997); 3-25 2357-3767 0072-0992 .Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométricoArtículo 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/ARTGeologíaCiencias de la tierraGeocienciasTunja SynclineStructural AnalysisGeologíaCiencias de la tierraGeocienciasSinclinal de TunjaAnálisis EstructuralORIGINAL31440-113957-1-PB.pdfapplication/pdf16816706https://repositorio.unal.edu.co/bitstream/unal/41996/1/31440-113957-1-PB.pdf4c59a0922a61e1d1ffeb86d9797ed1b6MD51THUMBNAIL31440-113957-1-PB.pdf.jpg31440-113957-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8811https://repositorio.unal.edu.co/bitstream/unal/41996/2/31440-113957-1-PB.pdf.jpg2b83948c0204fc213a07ce35862efaf4MD52unal/41996oai:repositorio.unal.edu.co:unal/419962024-02-02 23:07:00.691Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
title |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
spellingShingle |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico Geología Ciencias de la tierra Geociencias Tunja Syncline Structural Analysis Geología Ciencias de la tierra Geociencias Sinclinal de Tunja Análisis Estructural |
title_short |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
title_full |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
title_fullStr |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
title_full_unstemmed |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
title_sort |
Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico |
dc.creator.fl_str_mv |
Kammer, Andreas |
dc.contributor.author.spa.fl_str_mv |
Kammer, Andreas |
dc.subject.proposal.spa.fl_str_mv |
Geología Ciencias de la tierra Geociencias Tunja Syncline Structural Analysis Geología Ciencias de la tierra Geociencias Sinclinal de Tunja Análisis Estructural |
topic |
Geología Ciencias de la tierra Geociencias Tunja Syncline Structural Analysis Geología Ciencias de la tierra Geociencias Sinclinal de Tunja Análisis Estructural |
description |
The Tunja syncline is located at the northern termination of the Altiplano of the Eastern Cordillera, which constitutes a distinct physiographic province in the central part of the Eastern Cordillera between the cities of Bogota and Tunja. Together with its bordering basement cored anticlines, the Arcabuco and Toca anticline, it belongs to the Cordillera's first-order structures which are characterized by longitudinal continuities of several hundred kms and display, as a further outstanding feature, an eastern vergence. Superposed on this large scale disposition, trains of second-order folds with lengths of 100 km or less form the next important oroqraphlc features. Some structural independence from the basement-cored structures is documented by their vergences which, at least in the Tunja syncline, consistently oppose the first-order dip directions. The fact that they attain higher amplitudes above the steeply inclined segments of the western flank of the Tunja syncline, suggests an origin by gravity sliding. Yet the observed strain pattern does not unambiguously supports a model of simple detachment folds, as a neutral or even extensive regime at a higher structural level gives way to increasingly compressive deformations at low structural levels. These relations argue for a model in which amplification of the folding occurs at the cost of a homogeneous shortening near the basement-cover contact. A linear geometric extrapolation between oberved surficial folds and a supposedly unfolded basement-cover interface predicts a strain pattern, which is in good agreement with the observed deformations. A third-order, small scale folding affects only strata which have been eroded across anticlinal crests. These structures present themselves as flaps or cascade folds with vergences according to the dip direction of the higher order folds. For their origin a gravitational collapse during a latest stage of the folding process may be advocated. |
publishDate |
1997 |
dc.date.issued.spa.fl_str_mv |
1997 |
dc.date.accessioned.spa.fl_str_mv |
2019-06-28T10:25:57Z |
dc.date.available.spa.fl_str_mv |
2019-06-28T10:25:57Z |
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 |
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http://purl.org/redcol/resource_type/ART |
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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/41996 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/32093/ |
url |
https://repositorio.unal.edu.co/handle/unal/41996 http://bdigital.unal.edu.co/32093/ |
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/31440 |
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. 22 (1997); 3-25 Geología Colombiana; Vol. 22 (1997); 3-25 2357-3767 0072-0992 |
dc.relation.references.spa.fl_str_mv |
Kammer, Andreas (1997) Los pliegues del sinclinal de tunja. análisis estructural y modelamiento geométrico. Geología Colombiana - An International Journal on Geosciences; Vol. 22 (1997); 3-25 Geología Colombiana; Vol. 22 (1997); 3-25 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/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Departamento de Geociencias |
institution |
Universidad Nacional de Colombia |
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