Geology of the Basque-Cantabrian Basin and environs

Surface area:
250 x 100 km.
Geological location:
Western end of the Pyrenees mountain chain.
Mesozoic - Tertiary Sequence over Hercynian bottom (Devonian - Carboniferous).
Stratigraphic column::

Continuous sedimentary series from Permo-Triassic to Tertiary. Reaches 15,000 m in thickness and includes evaporites, carbonates, detritic series and volcanic materials.

Sedimentary basin:
Extensive basin from Triassic to Upper Cretaceous.
Geodynamic context:

Developed in context of rifting and opening stages of the North Atlantic (Bay of Biscay: separation of Iberian and European plates).

Deformation due to approximation of Iberian and European plates, from Maastrichtian to Oligocene.
Orogenic phase:
Pyrenean phase of Alpine orogeny (Eocene - Oligocene). Caused deformation of the series, lifting of sedimentary materials and inversion of the basin.

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Geological map

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Geological section

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Stratigraphic section

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Geology: EVE maps