Stratigraphie sismique et séquentielle haute résolution des formations du Jurassique supérieur du Boulonnais (Nord de la France) = High-resolution seismic and sequence stratigraphy of the Upper Jurassic deposits of the Boulonnais (northern France)
Mahieux, G.; Proust, J.-N.; Tessier, B.; De Batist, M.; Chamley, H. (1999). Stratigraphie sismique et séquentielle haute résolution des formations du Jurassique supérieur du Boulonnais (Nord de la France) = High-resolution seismic and sequence stratigraphy of the Upper Jurassic deposits of the Boulonnais (northern France). C. R. Acad. Sci., Sér. 2, Sci. Terre Planètes 328(5): 341-346. http://dx.doi.org/10.1016/S1251-8050(99)80127-X
In: Comptes Rendus de l'Académie des Sciences. Série IIA. Sciences de la Terre et des Planètes = Earth and Planetary Science. Gauthiers-Villars: Paris. ISSN 1251-8050; e-ISSN 1778-4107, meer
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| Trefwoord |
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| Author keywords |
high-resolution seismic stratigraphy; sequence stratigraphy; forced regression; Dover Strait; France |
| Auteurs | | Top |
- Mahieux, G.
- Proust, J.-N.
- Tessier, B.
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- De Batist, M., meer
- Chamley, H.
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| Abstract |
Very high-resolution seismic data were obtained from a Kimmeridgian-Tithonian submarine series located off the Boulonnais (northern France). The data were compared with high-resolution sequence stratigraphic results obtained on the same formations cropping out on the adjacent coastal cliffs. The seismic data provide better defined geometrical relationships between the sequences and the surfaces (‘toplap’, ‘downlap’) than the ones identified in the field. Based on the identification of downlap and toplap surfaces, one of the major contributions of the seismic data is to point out that the sandstone bodies isolated in offshore shales are sharp-based shoreface deposits induced by forced regression. |
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