Tidal signatures in a shelf-margin delta

Cummings, Don I.; Arnott, R. W. C.; Hart, Bruce S.

doi:10.1130/g22078.1

Cited by 36 publications

(28 citation statements)

References 10 publications

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“…However, Suter and Berryhill (1985); Morton and Suter (1996); and Roberts et al (2000) showed their studied Pleistocene shelf-margin deltas as fluvial-dominated with some wave-modification. On the other hand, Cummings et al (2006) recorded strong tidal signals on the front of Cretaceous deltas near the Nova Scotia shelf-edge, but showed that this was probably due to the deltas being sited within a shelf-edge embayment. Shelf-edges are probably more likely to be embayed at sea-level lowstand, whereas shorelines on highstand shelf-edges are more likely to be straight and open, and therefore wave-dominated.…”

Section: Wave Influence At the Shelf-edgementioning

confidence: 88%

A highstand shelf-margin delta system from the Eocene of West Spitsbergen, Norway

Uroza

Steel

2008

Sedimentary Geology

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Section: Wave Influence At the Shelf-edgementioning

confidence: 88%

A highstand shelf-margin delta system from the Eocene of West Spitsbergen, Norway

Uroza

Steel

2008

Sedimentary Geology

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“…There is no way to estimate, even qualitatively, the palaeobathymetry during the deposition of the Chaibasa shale facies, as the succession is of late Palaeoproterozoic age and thus is of devoid of usable fossils. Internal tide deposits are mostly associated with deep sea sediments (turbidites and/or contourites; see Lee and Ogawa, 1998;Cummings et al, 2006;Youbin et al, 2008). Such deposits are continuously reworked by tides and/or waves and therefore, are texturally more mature than the associated deep sea sediments.…”

Section: Discussionmentioning

confidence: 98%

Tidal rhythmites in offshore shale: A case study from the Palaeoproterozoic Chaibasa shale, eastern India and implications

Mallik

Mazumder

et al. 2012

Marine and Petroleum Geology

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“…By contrast, in the central Sable Subbasin, Missisauga slope clinoforms are typically difficult to resolve because of growth faults and noisy seismic data (Cummings et al, 2006). The Upper Missisauga (Barremian) shelf margin trend can, however, be correlated into the central Sable Subbasin using a combination of seismic, well-log and core data.…”

Section: Regional Seismic Stratigraphymentioning

confidence: 95%

“…The channel at the top of the O Marker is therefore interpreted to be a fluvially incised sequence boundary formed during relative sea-level fall below the shelf edge (cf. Cummings et al, 2006). Well-log data shows the channel to be filled with a heterolithic assemblage of sandstone, mudstone, and carbonate.…”

Section: Sequencementioning

confidence: 99%

Sedimentology and stratigraphy of a thick, areally extensive fluvial-marine transition, Missisauga Formation, offshore Nova Scotia, and its correlation with shelf margin and slope strata

Cummings

Hart

Arnott

2006

Bulletin of Canadian Petroleum Geology

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A 100 m thick, more than 20 km wide upward-fining succession at the top of the Lower Cretaceous Upper Member of the Missisauga Formation was investigated in the Panuke Field, offshore Nova Scotia, using core, well logs and 3-D seismic data. The succession consists of 50 m of dune cross-stratified sandstone overlain by 50 m of tide-influenced heterolithic strata, which in turn is overlain by 150 m of mudstone of the Naskapi Member of the Logan Canyon Formation. The succession is interpreted to be a fluvial-marine transition formed during a long-term (3 rd order) relative sea-level rise. The two main Panuke reservoirs are thin (<5 m) sheet-like sandstones at the Missisauga-Naskapi contact interpreted to be remnants of a wave-formed barrier system. In seismic data, the Upper Member of the Missisauga Formation correlates basinward with progradational shelf-margin reflections, suggesting that the sheet-like fluvial sandstone at the base of the upward-fining succession transferred sediment, and possibly sand, to the continental slope. RÉSUMÉUne succession d'affinages ascendants de 100 m d'épaisseur sur plus de 20 km de large au sommet du Crétacé inférieur du Membre supérieur de la Formation de Missisauga, a été examinée dans le champ de Panuke, au large de côtes de la Nouvelle Écosse, en utilisant des données de carottes, de diagraphies et de sismiques en 3-D. La succession se compose de 50 m de dunes de grès à stratification entrecroisée recouvertes par 50 m de strates hétérolithiques à influence de marée, qui à leur tour sont recouvertes par 150 m de mudstone du Membre de Naskapi de la Formation Logan Canyon. La succession est interprétée comme étant une transition fluviale-marine qui s'est formée durant une élévation relative du niveau de la mer à long terme (3 e ordre). Les deux réservoirs principaux de Panuke sont composés de grès en nappes minces (<5 m) au contact de Missisauga-Naskapi. Ces grès sont interprétés comme étant des restes d'un système de barrières formées par des vagues. D'après les données sismiques, le Membre supérieur de la Formation de Missisauga est en corrélation vers le bassin avec les réflexions de bordures de bassins progradantes, ce qui suggère que les nappes fluviales de grès, à la base de la succession d'affinages ascendants, ont transféré les sédiments, et probablement le sable, sur la pente continentale. Traduction de Gabrielle Drivet

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Tidal signatures in a shelf-margin delta

Cited by 36 publications

References 10 publications

A highstand shelf-margin delta system from the Eocene of West Spitsbergen, Norway

A highstand shelf-margin delta system from the Eocene of West Spitsbergen, Norway

Tidal rhythmites in offshore shale: A case study from the Palaeoproterozoic Chaibasa shale, eastern India and implications

Sedimentology and stratigraphy of a thick, areally extensive fluvial-marine transition, Missisauga Formation, offshore Nova Scotia, and its correlation with shelf margin and slope strata

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