Cyclic Sedimentation in the Lower Westphalian of No Devon, England

Raaf, J. F. M.; Reading, H. G.; Walker, Roger G.

doi:10.1111/j.1365-3091.1965.tb01282.x

Cited by 119 publications

(14 citation statements)

References 10 publications

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“…These thin, sharp-based sandstones are interpreted to record pulses of sediment-laden discharge from the distributary mouth, representing deposits of dilute turbidity currents in the delta front. They are similar to thin, erosive-based, coarsegrained siltstones and very fine-grained sandstone beds in fluvial-dominated deltaic deposits in the Westphalian in the United Kingdom (De Raaf et al, 1965), Upper Cretaceous-lower Paleocene deltaic deposits in northwest Mexico (McBride et al, 1975), and the modern Yellow River delta (Wright et al, 1988). In contrast, the upper part of the upward-coarsening section (3684-3693 ft, Figure 14.…”

Section: Prodelta Delta Front and Channel-mouth Barmentioning

confidence: 90%

Sequence-stratigraphic controls on complex reservoir architecture of highstand fluvial-dominated deltaic and lowstand valley-fill deposits in the Upper Cretaceous (Cenomanian) Woodbine Group, East Texas field: Regional and local perspectives

Ambrose¹,

Hentz²,

Bonnaffé³

et al. 2009

Bulletin

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An analysis of 31 whole cores (1600 ft, 490 m) and closely spaced wireline logs (500 wells) penetrating the Lower Cretaceous (Cenomanian) lower Woodbine Group in the mature East Texas field and adjacent areas indicates that depositional origins and complexity of the sandstone-body architecture in the field vary from those inferred from previous studies. Heterogeneity in the lower Woodbine Group is controlled by highstand, fluvial-dominated deltaic depositional architecture, with dip-elongate distributary-channel sandstones pinching out over short distances (typically <500 ft [<150 m]) into deltaplain and interdistributary-bay siltstones and mudstones. This highstand section is truncated in the north and west parts of the field by a thick (maximum of 140 ft [43 m]) lowstand, incised-valley-fill succession composed of multistoried, coarsegravel conglomerate and coarse sandstone beds of bed-load fluvial systems. In some areas of the field, this valley fill directly overlies distal-delta-front deposits, recording a fall in relative sea level of at least 215 ft (65 m).Correlation with the Woodbine succession in the East Texas Basin indicates that these highstand and lowstand deposits occur in the basal three fourth-order sequences of the unit, which comprises a maximum of 14 such cycles. Previous studies of the Woodbine Group have inferred meanderbelt sandstones flanked by coeval flood-plain mudstones and well-connected, laterally continuous sheet sandstones of wave-dominated deltaic and barrier-strand-plain settings. This model is inappropriate, and a full assessment of reservoir compartmentalization, fluid flow, and unswept mobile oil in East Texas field should include the highstand, fluvial-dominated deltaic and lowstand valley-fill sandstone-body architecture.

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Section: Prodelta Delta Front and Channel-mouth Barmentioning

confidence: 90%

Sequence-stratigraphic controls on complex reservoir architecture of highstand fluvial-dominated deltaic and lowstand valley-fill deposits in the Upper Cretaceous (Cenomanian) Woodbine Group, East Texas field: Regional and local perspectives

Ambrose¹,

Hentz²,

Bonnaffé³

et al. 2009

Bulletin

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“…The coarsening-upward facies succession combined with abundant current ripple cross-lamination and dune-scale cross-bedding suggests upward shallowing in a subaqueous current-dominated setting (De Raaf et al, 1965;Wright, 1977;Elliott, 1978;Fielding et al, 2005a;Hampson et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Depositional evolution of a progradational to aggradational, mixed-influenced deltaic succession: Jurassic Tofte and Ile formations, southern Halten Terrace, offshore Norway

Cappelle

Ravnås

Hampson

et al. 2017

Marine and Petroleum Geology

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Hightlights:• Core-based sedimentology of Jurassic deltaic strata from offshore Norway• Facies analysis of tide-influenced deltaic and estuarine petroleum reservoirs represented by an overall upward decrease in grain size, decrease in fluvial influence and increase in tidal influence. This evolution is attributed to an allogenic increase in the rate of accommodation space generation relative to sediment supply due to tectonic activity of the rift basin. In addition, during progradation, there was also an autogenic increase in sediment storage on the coastal plain, resulting in a gradual autoretreat of the depositional system. This is manifested in the subsequent aggradation of the system, when coarse-grained sandstones were trapped in proximal locations, while only finer grained sediment reached the coastline, where it was readily reworked by tidal and wave processes.

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“…Drawing on Middleton's (1973) restatement of Walther's Law, Walker emphasized the importance of the vertical succession of facies, and introduced the facies relationship diagram, a semi-quantitative expression of the range of vertical transitions revealed by careful vertical measurement of a stratigraphic succession. Reference was made to a detailed study of de Raaf et al (1965), which was the first to employ the concept of facies states and the use of a facies relationship diagram. Another study of vertical facies relationships at this time was that by Miall (1973) using the basic concepts of Markov chain analysis.…”

Section: Early Studies Of Modern Environmentsmentioning

confidence: 99%

Logan Medallist 3. Making Stratigraphy Respectable: From Stamp Collecting to Astronomical Calibration

Miall

2015

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The modern science of stratigraphy is founded on a nineteenth-century empirical base – the lithostratigraphy and biostratigraphy of basin-fill successions. This stratigraphic record comprises the most complete data set available for reconstructing the tectonic and climatic history of Earth. However, it has taken two hundred years of evolution of concepts and methods for the science to evolve from what Ernest Rutherford scornfully termed “stamp collecting” to a modern dynamic science characterized by an array of refined methods for documenting geological rates and processes. Major developments in the evolution of the science of stratigraphy include the growth of an ever-more precise geological time scale, the birth of sedimentology and basin-analysis methods, the influence of plate tectonics and, most importantly, the development, since the late 1970s, of the concepts of sequence stratigraphy. Refinements in these concepts have required the integration of all pre-existing data and methods into a modern, multidisciplinary approach, as exemplified by the current drive to apply the retrodicted history of Earth’s orbital behaviour to the construction of a high-precision ‘astrochronological’ time scale back to at least the Mesozoic record. At its core, stratigraphy, like much of geology, is a field-based science. The field context of a stratigraphic sample or succession remains the most important starting point for any advanced mapping, analytical or modeling work.RÉSUMÉLa science moderne de la stratigraphie repose sur une base empirique du XIXe siècle, soit la lithostratigraphie et la biostratigraphie de successions de remplissage de bassins sédimentaires. Cette archive stratigraphique est constituée de la base de données la plus complète permettant de reconstituer l’histoire tectonique et climatique de la Terre. Cela dit, il aura fallu deux cents ans d’évolution des concepts et des méthodes pour que cette activité passe de l’état de « timbromanie », comme disait dédaigneusement Ernest Rutherford, à l’état de science moderne dynamique caractérisée par sa panoplie de méthodes permettant de documenter les rythmes et processus géologiques. Les principaux développements de l’évolution de la science de la stratigraphie proviennent de l’élaboration d’une échelle géologique toujours plus précise, l’avènement de la sédimentologie et des méthodes d’analyse des bassins, de l’influence de la tectonique des plaques et, surtout du développement depuis la fin des années 1970, des concepts de stratigraphie séquentielle. Des raffinements dans ces concepts ont nécessité l'intégration de toutes les données et méthodes existantes dans une approche moderne, multidisciplinaire, comme le montre ce mouvement actuel qui entend utiliser la reconstitution de l’histoire du comportement orbital de la Terre pour l’élaboration d’une échelle temporelle « astrochronologique » de haute précision, remontant jusqu’au Mésozoïque au moins. Comme pour la géologie, la stratigraphie est une science de terrain. Le contexte de terrain d’un échantillon stratigraphique ou d’une succession demeure le point de départ le plus important, pour tout travail sérieux de cartographie, d’analyse ou de modélisation.

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Cyclic Sedimentation in the Lower Westphalian of No Devon, England

Cited by 119 publications

References 10 publications

Sequence-stratigraphic controls on complex reservoir architecture of highstand fluvial-dominated deltaic and lowstand valley-fill deposits in the Upper Cretaceous (Cenomanian) Woodbine Group, East Texas field: Regional and local perspectives

Sequence-stratigraphic controls on complex reservoir architecture of highstand fluvial-dominated deltaic and lowstand valley-fill deposits in the Upper Cretaceous (Cenomanian) Woodbine Group, East Texas field: Regional and local perspectives

Depositional evolution of a progradational to aggradational, mixed-influenced deltaic succession: Jurassic Tofte and Ile formations, southern Halten Terrace, offshore Norway

Logan Medallist 3. Making Stratigraphy Respectable: From Stamp Collecting to Astronomical Calibration

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