Search Results - "Ainsworth, R. Bruce"

Linking the high-resolution architecture of modern and ancient wave-dominated deltas; processes, products, and forcing factors by Ainsworth, R. Bruce, Vakarelov, Boyan K, Eide, Christian Haug, Howell, John A, Bourget, Julien

“…Wave-dominated deltas are often fed by single trunk distributary channels which can remain the primary source of sediment supply to the delta for periods of…”
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Controls on deep-water sand delivery beyond the shelf edge; accommodation, sediment supply, and deltaic process regime by Paumard, Victorien, Bourget, Julien, Payenberg, Tobi, George, Annette D, Ainsworth, R. Bruce, Lang, Simon, Posamentier, Henry W

“…Stratigraphic models typically predict accumulation of deep-water sands where coeval shelf-edge deltas are developed in reduced-accommodation and/or…”
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Sharp‐based shoreface successions reconsidered in three‐dimensions: A forward stratigraphic modelling perspective by Willis, Brian J., Sun, Tao, Ainsworth, R. Bruce

“…Sea‐level fall is commonly inferred to generate a sharp‐based shoreface succession that displays an abrupt vertical transition from heterolithic, lower…”
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Evidence of across-shelf transport of fine-grained sediments: turbidite-filled shelf channels in the Campanian Aberdeen Member, Book Cliffs, Utah, USA by PATTISON, SIMON A.J, BRUCE AINSWORTH, R, HOFFMAN, TREVOR A

“…The shore-normal transport of fine-grained sediments by shelf turbidity currents has been the focus of intense debate over the last 20 years. Many have argued…”
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A hierarchical approach to architectural classification in marginal-marine systems; bridging the gap between sedimentology and sequence stratigraphy by Vakarelov, Boyan K, Ainsworth, R. Bruce

“…A new hierarchical architectural classification for clastic marginal-marine depositional systems is presented and illustrated with examples. In ancient rocks,…”
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Contrasting facies patterns between river-dominated and symmetrical wave-dominated delta deposits by Willis, Brian J, Sun, Tao, Ainsworth, R. Bruce

“…Process-physics-based, coupled hydrodynamic-morphodynamic delta models are constructed to understand preserved facies heterogeneities that can influence…”
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Dynamic spatial and temporal prediction of changes in depositional processes on clastic shorelines; toward improved subsurface uncertainty reduction and management by Ainsworth, R. Bruce, Vakarelov, Boyan K, Nanson, Rachel A

“…Existing classification schemes and models for clastic coastal depositional systems do not consider the potential amplifying or moderating effects of coastal…”
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Out-of-phase cyclical sediment supply; a potential causal mechanism for generating stratigraphic asymmetry and explaining sequence stratigraphic spatial variability by Ainsworth, R. Bruce, Vonk, Adam J, Wellington, Paul, Paumard, Victorien

“…Although acknowledged to be a simplification, the rate of sediment supply is usually assumed to be constant in sequence stratigraphic interpretations of…”
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Seismic stratigraphy and geomorphology of a tide or wave dominated shelf-edge delta (NW Australia): Process-based classification from 3D seismic attributes and implications for the prediction of deep-water sands by Bourget, Julien, Ainsworth, R. Bruce, Thompson, Sophie

“…Shelf-edge deltas (SEDs) forming during periods of relative sea level fall and lowstand are generally efficient in transferring sediments to the slope and…”
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Process-driven architectural variability in mouth-bar deposits; a case study from a mixed-process mouth-bar complex, Drumheller, Alberta, Canada by Ainsworth, R. Bruce, Vakarelov, Boyan K, MacEachern, James A, Nanson, Rachel A, Lane, Tessa I, Rarity, Franklin, Dashtgard, Shahin E

“…Mouth bars can develop in locations where fluvial distributary channels deliver coarse sediment to the shoreline. As a consequence, they are typically…”
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Controls on shelf-margin architecture and sediment partitioning during a syn-rift to post-rift transition: Insights from the Barrow Group (Northern Carnarvon Basin, North West Shelf, Australia) by Paumard, Victorien, Bourget, Julien, Payenberg, Tobi, Ainsworth, R. Bruce, George, Annette D., Lang, Simon, Posamentier, Henry W., Peyrot, Daniel

“…The Barrow Group was deposited in the Northern Carnarvon Basin from the latest Tithonian to the Late Valanginian. This moderately deep-water shelf-margin is…”
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Tidal depositional systems in the rock record: A review and new insights by Longhitano, Sergio G., Mellere, Donatella, Steel, Ronald J., Ainsworth, R. Bruce

“…Some of the principles of tidal-wave theory and examples of mega-, macro-, meso- and microtidal coasts are reviewed, as well as sedimentary successions showing…”
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From quantitative 3D seismic stratigraphy to sequence stratigraphy: Insights into the vertical and lateral variability of shelf-margin depositional systems at different stratigraphic orders by Paumard, Victorien, Bourget, Julien, Payenberg, Tobi, George, Annette D., Ainsworth, R. Bruce, Lang, Simon

“…A major challenge in sequence stratigraphy is objectively identifying stratigraphic surfaces and sequences across multiple scales of observation…”
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Recognition of wave-dominated, tide-influenced shoreline systems in the rock record: Variations from a microtidal shoreline model by Vakarelov, Boyan K., Ainsworth, R. Bruce, MacEachern, James A.

“…Existing wave-dominated facies models are based on microtidal coastlines and do not adequately address wave-dominated environments influenced by significant…”
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Quantitative sequence stratigraphy by Ainsworth, R. Bruce, McArthur, Jamie B, Lang, Simon C, Vonk, Adam J

“…Sequence stratigraphy based on wire-line logs, cores, and outcrops is entering its fourth decade of mainstream usage in industry and academia. The technique…”
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Parameterizing parasequences; importance of shelf gradient, shoreline trajectory, sediment supply, and autoretreat by Ainsworth, R. Bruce, McArthur, Jamie B, Lang, Simon C, Vonk, Adam J

“…The basic reservoir flow unit in shallow-marine depositional systems is the parasequence since it is bounded top and base by regionally extensive shales that…”
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Anatomy of a shoreline regression; implications for the high-resolution stratigraphic architecture of deltas by Ainsworth, R. Bruce, Vakarelov, Boyan K, MacEachern, James A, Rarity, Franklin, Lane, Tessa I, Nanson, Rachel A

“…The regressive and subsequent transgressive transit of a shoreline across a clastic shelf generates the standard reservoir flow unit in most marginal to…”
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PREFERENTIAL ORIENTATION OF SHRIMP-GENERATED DIPLOCRATERION PARALLELUM AND THEIR RELIABILITY AS PALEOCURRENT INDICATORS by DASHTGARD, SHAHIN E, AINSWORTH, R. BRUCE, MACEACHERN, JAMES A

“…Arthropods from the late Campanian (Late Cretaceous) of the Western Interior Seaway produced U-shaped Diplocraterion parallelum in mudstones along two closely…”
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Architecture and evolution of a regressive, tide-influenced marginal marine succession, Drumheller, Alberta, Canada by Ainsworth, R. Bruce, Vakarelov, B. K, Lee, C, MacEachern, J. A, Montgomery, A. E, Ricci, L. P, Dashtgard, Shahin E

“…Tide-dominated and tide-influenced clastic depositional environments are typically interpreted to be associated with landward-stepping or transgressive…”
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PII: S0037-0738(12)00260-6 by Longhitano, Sergio G., Mellere, Donatella, Ainsworth, R. Bruce

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