Sedimentología e interpretación paleoambiental de la sucesión con niveles de vertebrados fósiles del Eoceno superior de Zambrana (Cuenca de Miranda-Treviño, Álava)
The Zambrana vertebrate fossil locality (Álava, Basque-Cantabrian Region) is located within Upper Eocene continental deposits of the Miranda-Treviño Basin. According to the sedimentological studies of this work, the fossiliferous beds are palustrine-lacustrine coal-bearing marls and limestones. They...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2003 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/9088 |
| Acceso en línea: | http://hdl.handle.net/10272/9088 |
| Access Level: | acceso abierto |
| Palabra clave: | Fluvial-lacustrine lithofacies Vertebrate fossils Paleoenvironment Upper Eocene Miranda-Treviño Basin |
| Sumario: | The Zambrana vertebrate fossil locality (Álava, Basque-Cantabrian Region) is located within Upper Eocene continental deposits of the Miranda-Treviño Basin. According to the sedimentological studies of this work, the fossiliferous beds are palustrine-lacustrine coal-bearing marls and limestones. They correspond to a shallow, low-gradient lake margin palaeoenvironment, with a peripheral swamp. The sedimentation was controlled by changes of water level. The fossil rich levels occur on top of swamp related organic matter rich facies, which were rapidly buried because of a rise of the water level. Therefore, the swamps are essential environment to prevent fast subaerial oxidation of the bones, and after buried by lacustrine facies, to form a reducing environment in water-saturated sediments and to promote the fossUization of the bones |
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