Integration of surface and subsurface data, paleomagnetism and analogue modelling to reconstruct the extensional geometry of the Cameros basin (N Spain)

Resumen

The integration of surface, subsurface and paleomagnetic data allows the 3D reconstructionof the geometry of the northern border of the Cameros basin for its extensional, pre-inverted stage. Inthe model proposed, the Cameros basin represents a lens-shaped, large-scale growth syncline over amajor basement fault with maximum thickness of deposits of about 8000 m in its depocenter, graduallydiminishing toward the north and south. A series of analogue models validate this geometry, pointingto the role of interlayered detachment levels on the development of syncline-basin geometries.