Deformacion fragil de los depositos neogenos de la cuenca de Navidad (Cordillera de la Costa, 34°S, Chile central).
Brittle deformation of the Neogene deposits of the Navidad Basin (Coastal Cordillera, 34°S, central Chile)
| dc.contributor | en-US | |
| dc.contributor | es-ES | |
| dc.creator | Lavenu, Alain | |
| dc.creator | Encinas, Alfonso | |
| dc.date | 2010-06-29 | |
| dc.identifier | http://www.andeangeology.cl/index.php/revista1/article/view/V32n2-a04 | |
| dc.identifier | 10.5027/andgeoV32n2-a04 | |
| dc.description | En la cuenca neogena de Navidad, situada en la Cordillera de la Costa de Chile central (~34°S), se identificaron una serie de deformaciones fragiles que fueron generadas durante el Mioceno Tardio y el Plioceno. A partir del analisis numerico de planos de microfallas y sus estrias, se determinaron las direcciones principales de los esfuerzos producidos por diversos eventos tectonicos extensionales y compresivos. Los resultados obtenidos en la cuenca de Navidad permiten concluir que durante el Mioceno Tardio-Plioceno Temprano se produjo una extension con direccion desconocida. Posteriormente, una deformacion extensional, de direccion aproximada este-oeste, afecta a esta zona durante todo el Plioceno. Durante esta epoca se produce un corto pulso tectonico compresivo de direccion este oeste. A pesar de este evento compresivo la cuenca marina de Navidad se desarrollo esencialmente en un ambiente tectonico extensional durante todo el Neogeno. | es-ES |
| dc.description | In the Neogene Navidad Basin, located in the Coastal Range of central Chile (34°S), a series of brittle deformations generated during the Late Miocene and Pliocene, were observed. Based on the numerical analysis of microfault planes and their slickensides, the main stress directions, caused by various extensional and compressive tectonic events, were determined. Results obtained in the Navidad Basin indicate that an extension of unknown direction occurred during the Late Miocene-Early Pliocene. Thereafter, extensional deformation orientated approximately east-west, affected this zone during the whole of the Pliocene. During this epoch a short east-west compressive pulse occurred. In spite of this compressive event, the marine Navidad Basin developed essentially in an extensional tectonic regime during the entire Neogene. | en-US |
| dc.format | application/pdf | |
| dc.format | text/html | |
| dc.language | eng | |
| dc.publisher | Servicio Nacional de Geología y Minería | en-US |
| dc.relation | http://www.andeangeology.cl/index.php/revista1/article/view/V32n2-a04/647 | |
| dc.relation | http://www.andeangeology.cl/index.php/revista1/article/view/V32n2-a04/html | |
| dc.source | Andean Geology; Vol 32, No 2 (2005) | es-ES |
| dc.source | Andean Geology; Vol 32, No 2 (2005) | en-US |
| dc.source | 0718-7106 | |
| dc.source | 0718-7092 | |
| dc.title | Deformacion fragil de los depositos neogenos de la cuenca de Navidad (Cordillera de la Costa, 34°S, Chile central). | es-ES |
| dc.title | Brittle deformation of the Neogene deposits of the Navidad Basin (Coastal Cordillera, 34°S, central Chile) | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | es-ES | |
| dc.type | en-US |
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Andean Geology
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