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Seismic Expression of Salt Dissolution-Related Features in the North Sea
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1988
Year
Sedimentary RecordEngineeringPaleoceanographySedimentary GeologyOceanographySeismic ExpressionEarth ScienceRegional GeologySeafloor MorphologyMarine GeologySalt DomeDrape StructuresGeologyLate PermianSedimentologyTectonicsDissolution-related Collapse StructuresStructural GeologySeismology
ABSTRACT Several salt dissolution-related collapse structures from the Mid North Sea High area are described and illustrated. Comments are made regarding the implications of these features in the study of paleophysiography and depositional environments during the Zechstein (Late Permian) period. Certain salt-edge drape structures have a general resemblance to similar features observed near the margins of the Williston Basin in Canada and the northern U.S.A.; the significance of these and other features from the viewpoint of hydrocarbon entrapment is discussed. L'EXPRESSION SEISMIQUE DE CHARACTERISTIQUES RELIEES A LA DISSOLUTION DU SEL DANS LA MER DU NORD RESUME Plusieurs structures d'effondrement reliees a la dissolution du sel dans la region du sommet du dome Mid North Sea sont decrites et illustratees. Des commentaires se rapportant aux implications de ces characteristiques dans l'etude des milieux paleophysiographiques et sedimentaires durant la periode Zechstein (Permien Superieur) sont aussi presentes. Certaines structures drapees (drape structures) observees en bordure du sel ressemblent de facon generale a des structures similaires presentes en bordure du bassin de Williston au Canada et dans le nord des E.U.A.; l'importance de ces et d'autres characteristiques, du point de vue du piegeage des hydrocarbures, est aussi examinee. Traduit par Marc Charest