Latest-Cretaceous/Paleocene karsts with marine infillings from Languedoc (South of France); paleogeographic, hydrogeologic and geodynamic implications

Auteurs :
COMBES, P.-J.
PEYBERNÈS, B.
FONDECAVE-WALLEZ, M.-J.
SÉRANNE, M.
LESAGE, J.-L.
CAMUS, H.

Description :
The AA. propose, as an hypothesis, that the rapid sea-level changes, as recorded by the imbricated karstic paleomorphologies, could be induced by the closing and the opening of a strait in the Eastern part of the Pyrenean Paleocene Trough, PPT, acting as a sill. This would be controlled by tectonic movements along the active orogenic axis of the Pyrenean Range and eustatic variations of the Paleocene World Ocean. The karstic systems may have been later reactivated. This late evolution may have generated deep flooded karsts, now situated below the present sea level. Such karsts, partly inherited from Paleocene, could be important aquifers of economic interest.


Type de document :
Article de périodique

Source :
Geodinamica acta, issn : 0985-3111, 2007, vol. 20, n°. 5, p. 301-326, nombre de pages : 26, Collation : Illustration, Références bibliographiques : 51 ref.

Date :
2007

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis