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TitreOnshore equivalents of the Cretaceous reservoir rocks of the Scotian Basin: detrital petrology, tectonics and diagenesis.
AuteurPe-Piper, G; Piper, D J W
SourceCentral Atlantic conjugate margins conference, field trip guidebook #3; 2008, 58 pages
Année2008
Séries alt.Secteur des sciences de la Terre, Contribution externe 20080360
RéunionCentral Atlantic Conjugate Margins Conference; Halifax; CA; 2008
Documentlivre
Lang.anglais
Mediapapier
ProvinceNouvelle-Écosse
SNRC11E/03; 11E/04; 11E/05; 11E/06
Lat/Long OENS-64.0000 -63.0000 46.0000 45.5000
Sujetsroches sédimentaires; milieu sédimentaire; antecedents de sedimentation; sedimentation; diagenèse; caractéristiques structurales; failles; biostratigraphie; lithofaciès; historique de l'enfouissement; maturation thermique; analyses structurales; caractéristiques structurales; déformation; sables; graviers; paléogéographie; descriptions de carottes; analyse de carottes; carottes; carottes de sédiment marin; Formation de Chaswood ; sédimentologie; stratigraphie; pétrologie ignée et métamorphique; Mésozoïque; Crétacé
Illustrationslocation maps; stratigraphic columns; cross-sections; rose diagrams; ternary diagrams; cross-sections
ProgrammeSécurité de l'approvisionnement énergétique du Canada
Résumé(disponible en anglais seulement)
The Lower Cretaceous Chaswood Formation of Nova Scotia and New Brunswick is a fluvial succession up to 200 m thick that is the chronologic equivalent of the Missisauga and Logan Canyon reservoir sandstones of the Scotian basin. The formation was deposited in fault-bound basins that show the same phases of deformation as the offshore Orpheus graben, Laurentian subbasin and Jeanne d'Arc basin along tectonic strike. The Chaswood Formation preserves a record of:
- indirectly, the climate and hinterland relief that supplied sediment to the Scotian basin;
- the importance of syn-depositional strike-slip deformation;
- the style of diagenesis in the proximal parts of the Scotian basin;
- the detrital petrography (gravel through clay fraction) supplied to the western part of the Scotian basin;
- the thermal evolution of the proximal part of the Scotian basin.

This one day field trip will visit the only sizeable outcrop of the Chaswood Formation in Nova Scotia. At this site multiple phases of deformation are visible as well as a varied detrital petrography preserved in the gravel fraction. A complex tectonic and diagenetic history is revealed by high-resolution seismic-reflection profiles and diamond drill-holes that will be used to illustrate selected examples of Chaswood Formation lithofacies.
GEOSCAN ID225745