Estudio paleontológico de las facies lacustres-palustres de Peña Adrián, Mioceno Superior (Miranda de Ebro, Cuenca Miranda Trebiño)
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Abstract
Este trabajo presenta los resultados del estudio paleontológico
de la sección de Peña Adrián (Miranda de Ebro, Burgos), formada
por facies aluviales y palustre-lacustres del Mioceno Superior. Se han
muestreado dos niveles margosos, PAF15 y PAF24 (A y B) donde se
han identificado diferentes géneros y especies de gasterópodos, ca rofitas, y ostrácodos. A partir del estudio estratigráfico y paleontoló gico ha sido posible conocer las condiciones ambientales del sistema
lacustre y su variación a lo largo de la sucesión, mostrando fases de
mayor y menor energía hasta la colmatación y retracción final del
sistema
This work presents the results of the paleontological study of the Peña Adrián section (Miranda de Ebro, Burgos), formed by alluvial and palustrine-lacustrine facies from the Upper Miocene. Two levels of marls have been sampled, PAF15 and PAF24 (A and B) where di fferent genera and species of gastropods, charophytes and ostracods have been identified. From the stratigraphic and paleontological study, it has been possible to recognize the environmental condi tions of the lacustrine system and their variation throughout the suc cession, showing phases of higher and lower energy until the final retraction of the lake system
This work presents the results of the paleontological study of the Peña Adrián section (Miranda de Ebro, Burgos), formed by alluvial and palustrine-lacustrine facies from the Upper Miocene. Two levels of marls have been sampled, PAF15 and PAF24 (A and B) where di fferent genera and species of gastropods, charophytes and ostracods have been identified. From the stratigraphic and paleontological study, it has been possible to recognize the environmental condi tions of the lacustrine system and their variation throughout the suc cession, showing phases of higher and lower energy until the final retraction of the lake system







