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TitreNew insight on the geometry and evolution of the Moncton sub-basin from 3D seismic reflection data in the McCully area, New Brunswick, Canada
AuteurBrake, V; Pinet, N; Duchesne, M J; Bellefleur, G
SourceMarine and Petroleum Geology vol. 102, 2019 p. 363-376, https://doi.org/10.1016/j.marpetgeo.2018.12.048
Année2019
Séries alt.Ressources naturelles Canada, Contribution externe 20180273
ÉditeurElsevier BV
Documentpublication en série
Lang.anglais
DOIhttps://doi.org/10.1016/j.marpetgeo.2018.12.048
Mediapapier; en ligne; numérique
Formatspdf
ProvinceNouveau-Brunswick
SNRC21H/11; 21H/12; 21H/13; 21H/14
Lat/Long OENS -65.5333 -65.4667 45.7667 45.7333
Sujetsbassins; analyse du bassin; géométrie du bassin; evolution du bassin; interpretations sismiques; levés de reflexion sismiques; géophysique; géologie marine
Illustrationslocation maps; profiles; logs
ProgrammeGaz schiste - aquifères du Nouveau-Brunswick, Géosciences environnementales
Diffusé2018 12 31
Résumé(disponible en anglais seulement)
Within the Maritimes Basin of eastern Canada, the onshore Moncton sub-basin is one of the NE-trending secondorder depocenters that recorded a complex tectonic history from Late Devonian to Late Carboniferous. Analysis of a 3D seismic volume in the McCully gas field area exemplifies the complex interplay between mainly continental sedimentation and several tectonic episodes that contribute to a net extension or shortening in an overall strike-slip setting. The new interpretation demonstrates the role of normal faults oblique to the sub-basin axis in initial phases of sub-basin development and their influence on the deposition of the Upper Devonian-Lower Mississipian Horton Group sediments. A subsequent episode of transpression is recorded by syn-folding growth strata (base of the Mississipian Sussex Group) preserved on both flanks of an anticline that belongs to a fold system that shows an en echelon geometry relative to sub-basin bounding faults. Deposition of a marine interval (Middle Mississipian Windsor Group), including evaporitic strata is succeeded by an halokinetic growth succession (Upper Mississipian-Pennsylvanian Mabou Group) found in minibasins that formed through drape folding (downbuilding) in response to salt-walls development. This polyphased history illustrates the complexity of strike-slip basins that are often controlled by structures with different geometry and kinematics in time and/or space.
Résumé(Résumé en langage clair et simple, non publié)
La sismique 3D permet de caractériser la géométrie d'objets géologiques qui sont difficiles à étudier à l'affleurement ou sur des profils sismiques 2D. Cet article présente la première interpretation d'un jeu de données 3D terrestre dans les provinces atlantiques, plus précisement dans le champs gasier de McCully, Nouveau Brunswick. Ce jeu de données a été fourni par Corridor Resources. La nouvelle interpretation confirme l'histoire polyphasée du basin de Moncton et démontre les relations complexes entre tectonique et sedimentation.
GEOSCAN ID313035