Los pliegues de la barrera de guataquí - girardot: ¿producto de un despegue de la cobertera cretácica de la cordillera oriental?
In this paper the folds of the so - called barrier of Guataquí - Girardot are interpreted as detachment folds. In a first step, depths of a décollement horizon are calculated, using the classical excess - area method. These results are discussed in the light of a defonnational scenario, which includ...
| Authors: | , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 1995 |
| Country: | Colombia |
| Institution: | Universidad Nacional de Colombia |
| Repository: | Repositorio UN |
| Language: | Spanish |
| OAI Identifier: | oai:repositorio.unal.edu.co:unal/41894 |
| Online Access: | https://repositorio.unal.edu.co/handle/unal/41894 http://bdigital.unal.edu.co/31991/ |
| Access Level: | Open access |
| Keyword: | Geología Ciencias de la tierra Geociencias Pliegues Barrera de Guataquí - Girardot nivel de despegue perfiles deformación interna Barrera de Guataquí |
| Summary: | In this paper the folds of the so - called barrier of Guataquí - Girardot are interpreted as detachment folds. In a first step, depths of a décollement horizon are calculated, using the classical excess - area method. These results are discussed in the light of a defonnational scenario, which includes 1) uplift of the internal parts of the Eastern Cordillera and 2) a gravity - driven gliding of the Cretaceous cover toward its bordering depressions, giving rise to a partial tectonic denudation. It is concluded that, with respect to this scenario and in order to carry out a satisfactory retro - defonnation by balanced areas, distributed shear and internal defonnation should be allowed for as further parameter in the decollement calculations. |
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