RT Journal Article
T1 Arquitectura estrati gráfica del sistema de plataforma dominada por tormentas de la Fm. Valmaseda (Albiense sup.-Cenomaniense inf. de la cuenca Vascocantábrica)
T1 Stratigraphic arquitecture of a storm-dominated shallow marine platform (Valmaseda Fm., Up. Albian - Lw. Cenomanian, Basque Cantabrian Basin)
A1 Pérez García, Adán
A1 Robles, Sergio
A1 Vicente Bravo, J. C.
AB The Valmaseda Fm. comprises a thick siliciclastic shallow marine depositions! system, developed in the southern margin of the Basque Cantabrian basin. Its western sector, located ¡between the Tornos Pass (Cantabria-Burgos) and Llodio (Alava) displays a thickness ranging from 1000 to 3500 m.Detailed facies analysis have allowed to establish five facies assemblages which build up the basic facies tract. It consists on a prograding / shallowing upward sequence developed on a storm-dominated siliciclastic platform. The stacking pattern of these basic sequences yields composite higher rank sedimentary cycles which represent overall shallowing upward / prograding units of regional extent, capped by transgresive deposits. These sedimentary cycles can be further grouped into four regionally extensive stratigraphic units which outline four depositional stages controlled by sedimentary tectonics. These comprise: encroachment of shallow marine siliciclastic fades within a tectonicilly induced trough, spreading of shallow marine facies across the studied area, phase of strong differential subsidence, and sharp replacement of siliciclastic facies by outer shelf carbonate fades
PB Sociedad Geológica de España
YR 1997
FD 1997
LK http://hdl.handle.net/10272/10521
UL http://hdl.handle.net/10272/10521
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026