Sedimentología e interpretación paleoambiental de la sucesión con niveles de vertebrados fósiles del Eoceno superior de Zambrana (Cuenca de Miranda-Treviño, Álava).

Iriarte, E. ^[1] ; Badiola, A. ^[1] ; Hernández, J. Mª. ^[2] ; Berreteaga, A. ^[1]
1. [1] Universidad del País Vasco/Euskal Herriko Unibertsitatea
  
  Universidad del País Vasco/Euskal Herriko Unibertsitatea
  
  Leioa, España
2. [2] Eureka! Zientzia Museoa, País Vasco
Localización: Geogaceta, ISSN 0213-683X, Nº. 34, 2003, págs. 131-134
Idioma: español
Títulos paralelos:
- Sedimentology and palaeoenvironmental interpretation of the Upper Eocene vertebrate fossil rich section of Zambrana (Miranda-Treviño Basin, Álava)
Enlaces
- Texto completo (pdf)

Resumen
- The Zambrana vertebrate fossillocality (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-Iaeustrine 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 oeeur on top of swamp related organie 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 reclucing environment in water-saturated sediments and to promote the fossilization of the bones.