Integrated taphonomy in an open-marine platform: The Lower Cretaceous of Sierra Helada (Betic Cordillera, SE Spain)
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/46463
Título: | Integrated taphonomy in an open-marine platform: The Lower Cretaceous of Sierra Helada (Betic Cordillera, SE Spain) |
---|---|
Autor/es: | Giannetti, Alice | Monaco, Paolo | Corbí, Hugo | Soria Mingorance, Jesús Miguel |
Grupo/s de investigación o GITE: | Cambios Paleoambientales |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente |
Palabras clave: | Taphonomy | Siliciclastic mixed carbonate platform | Albian | Sierra Helada | Betic Cordillera | Southeastern Spain |
Área/s de conocimiento: | Paleontología | Estratigrafía |
Fecha de publicación: | sep-2014 |
Editor: | Elsevier |
Cita bibliográfica: | Cretaceous Research. 2014, 51: 274-284. doi: 10.1016/j.cretres.2014.07.001 |
Resumen: | A detailed taphonomic analysis was carried out on the lower Albian deposits of the Sierra Helada section (Alicante, Betic Cordillera, southeastern Spain). Ten taphonomic characters were studied and ten skeletal concentrations were defined on the basis of taphonomic features and the dominant taxa. Cluster analysis was performed on the dataset represented by the abundance of the taphonomic characters in each skeletal concentration. This enabled the definition of four different taphonomic categories: 1) skeletal concentrations characterized by the presence of fossils preserved in life position, 2) skeletal concentrations showing very little physical reworking, 3) skeletal concentrations related to high-energy background conditions, and 4) skeletal concentrations produced by medium- to high-energy events. Four taphofacies were defined on the basis of the main sedimentological features and the most representative skeletal concentrations. Taphofacies A represents the low energy outer platform, rich in skeletal concentrations with echinoids in life position and only slightly reworked. The second taphofacies (taphofacies B) is very rich in reworked echinoid tests and calcarenitic beds and records the transition to shallower areas, while taphofacies C shows abundant thick-bedded calcarenites and skeletal concentrations produced by sediment transport and rapid deposition. Finally, cross-bedded grainstone beds, which are rich in fine-grained fragmented, locally reoriented bioclasts (taphofacies D), record the existence of shifting sandy dunes in the shallow inner part of the platform. |
Patrocinador/es: | The research has been supported by Research Group VIGROB-167 (University of Alicante). |
URI: | http://hdl.handle.net/10045/46463 |
ISSN: | 0195-6671 (Print) | 1095-998X (Online) |
DOI: | 10.1016/j.cretres.2014.07.001 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2014 Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.cretres.2014.07.001 |
Aparece en las colecciones: | INV - CP - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2014_Giannetti_etal_Cretaceous-Research_final.pdf | Versión final (acceso restringido) | 4,16 MB | Adobe PDF | Abrir Solicitar una copia |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.