An exhumed Jurassic meander belt from Yorkshire, England

Nami, Mustapha

doi:10.1017/s0016756800043004

Cited by 42 publications

(14 citation statements)

References 10 publications

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“…lateral accretion units and current directions at right angles to the dip of lateral accretion units (Allen, 1965a;Allen & Friend, 1968;Cotter, 1971 ;Leeder, 1973;Nami, 1976;Puigdefabregas, 1973). The major erosion surfaces which subdivide the Sudmoor Point Sandstone into six sand bodies probably mark the contacts of individual point bars.…”

Section: N T E R P R E T a T I O Nmentioning

confidence: 99%

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A meander‐belt sandstone of the Lower Cretaceous of Southern England

Stewart

1981

Sedimentology

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A B S T R A C TThe meander-belt deposit comprises a sandstone resting on an erosion surface and bounded above and below by massive varicoloured mudstones with rootlet traces. The sandstone unit is composed of six bodies separated from one another, horizontally, by erosion surfaces; together the bodies form a single multilateral sand body. Internally each body is composed of lateral accretion units inclined at up to 6" from the horizontal. Vertical sequences of facies show significant variations but the grain size generally fines upwards. The principal lithofacies within the sandstones are, in common ascending order, intraformational conglomerate, large-scale cross-bedded, horizontal bedded and small-scale cross-laminated sandstone, and alternate sandstones and mudstones. Current directions are normal to the true slope of accretion surfaces and show insignificant scatter within individual bodies but are very diverse overall. Five of the sand bodies are believed to represent individual point bars, and one body an abandoned channel. Together they comprise the meander belt. The river was subject to very variable discharges and carried high suspended loads. Analysis of vertical profiles indicates that grain size segregation along the length of the point bars caused differentiation of the bars into coarsegrained heads and sandy tails.

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Section: N T E R P R E T a T I O Nmentioning

confidence: 99%

“…Allen, 1970a;Cant & Walker, 1976). Little is also known about detailed lateral facies changes, although it is becoming increasingly clear that complex lateral facies relationships occur in modern (Bluck, 1971;Jackson, 1976b;Cant, 1978) and ancient (Nami, 1976;Nijman & Puigdefabregas, 1978)…”

Section: Introductionmentioning

confidence: 99%

A meander‐belt sandstone of the Lower Cretaceous of Southern England

Stewart

1981

Sedimentology

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“…Importantly, we also demonstrate how the outcomes obtained from the model can be used to The fluvial point-bar deposits of the Scalby Formation were interpreted originally by Nami (1976) and Leeder and Nami (1979). The complexity of the succession, which is characterised by multiple storeys of point-bar and overbank elements, was revealed in greater detail by Alexander (1986;.…”

Section: Application: Jurassic Scalby Formation Englandmentioning

confidence: 67%

A 3D forward stratigraphic model of fluvial meander-bend evolution for prediction of point-bar lithofacies architecture

Yan

Mountney

Colombera

et al. 2017

Computers & Geosciences

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Cite this article as: Na Yan, Nigel P. Mountney, Luca Colombera and Robert M. Dorrell, A 3D forward stratigraphic model of fluvial meander-bend evolution for prediction of point-bar lithofacies architecture, Computers and Geosciences, http://dx.doi.org/10.1016/j.cageo.2017.04.012 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…Her idealized flow model showed a trough between the Peak and Red Cliff faults, draining southward. Within the trough a meander belt developed (Nami, 1976) while over the eastern flank overbank deposits predominate south of Yons Nab (Alexander, 1986).…”

Section: The Peak Trough Onshorementioning

confidence: 99%

The Peak Trough – a major control on the geology of the North Yorkshire coast

Milsom

Rawson

1989

Geol. Mag.

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Although the Mesozoic sediments of the Cleveland Basin (North Yorkshire) have generally not been strongly faulted, several approximately N-S trending faults have been identified along the coast. New seismic data from adjacent coastal waters has allowed the offshore extension to the fault system to be examined for the first time. The coastal faults from Peak (Ravenscar) to Red Cliff (Cayton Bay) are shown to form part of a linked system defining a narrow graben only some 5 km wide, the Peak Trough. Faulting has been complex, with decollement levels apparently developed in weak layers at various horizons in the Triassic and Permian strata: fault geometries and regional considerations suggest that extension has been dominant. Movement occurred intermittently from Triassic to latest Cretaceous or early Tertiary times.

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An exhumed Jurassic meander belt from Yorkshire, England

Cited by 42 publications

References 10 publications

A meander‐belt sandstone of the Lower Cretaceous of Southern England

A meander‐belt sandstone of the Lower Cretaceous of Southern England

A 3D forward stratigraphic model of fluvial meander-bend evolution for prediction of point-bar lithofacies architecture

The Peak Trough – a major control on the geology of the North Yorkshire coast

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