Predicting Coastal Depositional Style: Influence of Basin Morphology and Accommodation To Sediment Supply Ratio Within A Sequence Stratigraphic Framework

Ainsworth, R. Bruce; Flint, Stephen S.; Howell, John

doi:10.2110/pec.08.90.0237

Cited by 63 publications

(94 citation statements)

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“…Facies partitioning into different components of a stratigraphic cycle may reflect temporal variations in the depositional-process regime operating along the paleocoastline, with fluvial influence occurring predominantly during regression and tidal influence being enhanced during transgression (cf. Yoshida et al 2007;Ainsworth et al 2008Ainsworth et al , 2011. However, our interpretation also implies that preservation of facies tracts differed over the duration of a stratigraphic cycle, such that there is a strong preservational bias towards wave-dominated-shoreface deposits during regression.…”

Section: Depositional Modelmentioning

confidence: 75%

Preserved Stratigraphic Architecture and Evolution of A Net-Transgressive Mixed Wave- and Tide-Influenced Coastal System: The Cliff House Sandstone, Northwestern New Mexico, U.S.A.

Jordan¹,

Gupta²,

Hampson³

et al. 2016

Journal of Sedimentary Research

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The Cretaceous Cliff House Sandstone comprises a thick (400 m) nettransgressive succession representing a mixed wave-and tide-influenced shallow-marine system that migrated episodically landwards. This study examines the youngest part (middle Campanian) of the Cliff House Sandstone, exposed in Chaco Cultural Natural Historical Park, northwest New Mexico, U.S.A. Detailed mapping of facies architecture between a three-dimensional network of measured sections has allowed the character, geometry, and distribution of key stratigraphic surfaces and stratal units to be reconstructed. Upward-shallowing facies successions (parasequences) are separated by laterally extensive transgressive erosion (ravinement) surfaces cut by both wave and tide processes. Preservation of facies tracts in each parasequence is controlled by the depth of erosion and migration trajectory of the overlying ravinement surfaces. In most parasequences, there is no preservation of the proximal wave-dominated facies tracts (foreshore, upper-shoreface), resulting in thin (4-7 m) top-truncated packages. Four distinct shallow marine tongues (parasequence sets) have been identified, consisting of ten parasequences with a total stratigraphic thickness of ~ 100 m. Each tongue records an episode of complex shoreline migration history (multiple regressive-transgressive phases) in an overall net-transgressive system.The ravinement surfaces provide a stratigraphic framework in which to understand partitioning of tide-and wave-dominated deposits in a net-transgressive system, and a model is presented to account for the sediment distribution and stratigraphic architecture observed in each parasequence. Despite a complex internal architecture, parasequences exhibit a predictable pattern which can be related to the regressive and transgressive phases of deposition. Preservation of wave-dominated facies tracts is associated with shoreline regression, while tide-dominated facies tracts are interpreted to record sediment accumulation during shoreline transgression that also resulted in significant erosion of the underlying regressive deposits. The interplay between erosion, sediment bypass, and deposition during regression and transgression is shown to ultimately control the preservation and stratigraphic architecture of the larger-scale net-transgressive coastal system. While the Cliff House Sandstone exhibits a facies composition and quantitative stacking patterns (shoreline trajectory) similar to other studied examples, differences in the dip-extent of the wave-dominated sandstone tongue has resulted in a more

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Section: Depositional Modelmentioning

confidence: 75%

Preserved Stratigraphic Architecture and Evolution of A Net-Transgressive Mixed Wave- and Tide-Influenced Coastal System: The Cliff House Sandstone, Northwestern New Mexico, U.S.A.

Jordan¹,

Gupta²,

Hampson³

et al. 2016

Journal of Sedimentary Research

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“…Nonetheless, as intimately linked to river discharge, sediment supply contributes to enhance fluvial processes and is often critical to the formation of highstand shelf-edge deltas (Uroza and Steel 2008), to induce vigorous shelf-margin growth, and to bypass large volumes of sand to deep water (see Wetzel 1993;Carvajal and Steel 2006). The sea-level ''drive'' producing sand bypass in conventional sequence stratigraphy (Posamentier et al 1988), is much less reliant on high sediment supply, but also influences processes during the shelf transits of deltas and during their time at the shelf edge (Porębski and Steel 2003;Yoshida et al 2007;Ainsworth et al 2008;Pontén and Plink-Björklund 2009).…”

Section: Introductionmentioning

confidence: 99%

Shelf-Edge Architecture and Bypass of Sand to Deep Water: Influence of Shelf-Edge Processes, Sea Level, and Sediment Supply

Carvajal

Steel

2009

Journal of Sedimentary Research

100

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The Lower Barrow Group (LBG; Latest Tithonian-Early Valanginian) is a shelf-margin that prograded during a late phase of rifting under various subsidence regimes and supply-dominated conditions. A 3D semi-automatic, full-volume seismic interpretation method allow identifying high-order clinothems presenting an estimated cyclicity of ~40,000 yrs, in which a quantitative analysis of the shelf-margin architecture and shorelines processes was conducted. Overall, three and four main types of hydrodynamic regimes and deep-water systems were identified, respectively. Falling to flat shelf-edge trajectories are associated with sediment bypass, whereas rising shelf-edge trajectories are linked with increasing sediment storage on the shelf. While fluvial to wave processes can be dominant in all A/S conditions, results show that fluvial-dominated coastlines are associated with steep high-angle slope clinoforms and short to longer run-out turbidites. Conversely, wave-dominated coastlines are linked to low-angle slope clinoforms and poor turbidite system development (occasional sheet sand and MTDs). The short and longer run-out turbidite systems present a tripartite architecture (canyon / slope valley; channel; lobes) which mostly appear as short-lived, vertically / laterally stacked elements fed my multiple small rivers forming linear ramp systems. Due to the shallow configuration of the margin (<500m), the presence of short slopes and overall high sand-to-mud ratio, the turbidite systems are smaller scale (<50 km) and probably shorter lived than most modern turbidite systems (100-1000 km). This study sheds new lights on the significant role of shelf-margin architecture (slope gradient, hydrodynamic regime) in predicting the deep-water sediment delivery behavior (sediment partitioning, type of deep-water system).

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“…Despite this undoubted progress, the conference and the papers presented here amply demonstrate that progress continues in the sedimentological description of paralic reservoirs and that several recurring themes represent fruitful directions for future work: † The tectonostratigraphic context of paralic successions influences their subsidence patterns and preserved thickness, sediment input and routing, and potentially also the process regime (e.g. via suppression or amplification of waves and tides : Stride 1982;Yoshida et al 2007;Ainsworth et al 2008;Wells et al 2010). Spatial and temporal variations in tectonostratigraphic context may result in the development of subtle stratigraphic trapping configurations, and complex spatial patterns of reservoir distribution and character.…”

Section: Recurring Themes and Future Directionsmentioning

confidence: 99%

Introduction to the sedimentology of paralic reservoirs: recent advances

Hampson

Reynolds

Kostic³

et al. 2017

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Paralic reservoirs reflect a range of clastic depositional environments developed along or near coastlines, including deltas, shoreline–shelf systems and estuaries. Such reservoirs provide the backbone of production in many mature basins around the world, and contribute significantly to global conventional hydrocarbon production. Strata that host these reservoirs are shaped by a wide variety of depositional processes and controls which reflect the upstream supply of sediment and water, the characteristics of the receiving basin, relative sea level, tectonic setting, and the internal dynamics of depositional systems. Consequently, they exhibit much variability in their stratigraphic architecture and sedimentological heterogeneity, which translates into complex patterns of reservoir distribution and reservoir performances that are challenging to predict, optimize and manage. This Special Publication presents new research and developments in established approaches to exploration and production of paralic reservoirs. It arises from the conference and associated core workshop titled ‘Sedimentology of Paralic Reservoirs: Recent Advances and their Applications’, which was organized by the Petroleum Group of the Geological Society of London and held in London from 18 to 21 May 2015

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Predicting Coastal Depositional Style: Influence of Basin Morphology and Accommodation To Sediment Supply Ratio Within A Sequence Stratigraphic Framework

Cited by 63 publications

References 0 publications

Preserved Stratigraphic Architecture and Evolution of A Net-Transgressive Mixed Wave- and Tide-Influenced Coastal System: The Cliff House Sandstone, Northwestern New Mexico, U.S.A.

Preserved Stratigraphic Architecture and Evolution of A Net-Transgressive Mixed Wave- and Tide-Influenced Coastal System: The Cliff House Sandstone, Northwestern New Mexico, U.S.A.

Shelf-Edge Architecture and Bypass of Sand to Deep Water: Influence of Shelf-Edge Processes, Sea Level, and Sediment Supply

Introduction to the sedimentology of paralic reservoirs: recent advances

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