6533b82afe1ef96bd128ca16
RESEARCH PRODUCT
Contrôle géodynamique de la sédimentation argileuse du Callovien-Oxfordien moyen dans l'Est du bassin de Paris: influence eustatique et volcanique
Pierre PellenardJean-françois DeconinckDidier MarchandGeorges VigneronDominique FortwenglerJacques Thierrysubject
Paleontologygeographygeography.geographical_feature_categoryVolcanoBoreholeMontane ecologyOcean EngineeringStructural basinNorth seaEcology Evolution Behavior and SystematicsExtensional definitionGeologydescription
The Middle Callovian to Middle Oxfordian clay deposits drilled in the eastern Paris Basin (borehole HTM 102, ANDRA) show a strong mineralogical change occurring in the lowermost Oxfordian (Scarburgense subzone, Mariae zone). Such a change probably results from the initial development of connections between the young Atlantic Ocean and the Paris Basin. A bentonitic layer identified close to the boundary between Lower and Middle Oxfordian and also recognized in the subalpine Basin (South-East of France) at the same age, reflects a volcanic activity probably resulting from an extensional regime located in the North Sea.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-06-01 | Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science |