Bedload Transport of Mud Across A Wide, Storm-Influenced Ramp: Cenomanian-Turonian Kaskapau Formation, Western Canada Foreland Basin

Plint, A. Guy; Macquaker, Joe H.S.; Varban, Bogdan L.

doi:10.2110/jsr.2012.64

Cited by 74 publications

(73 citation statements)

References 37 publications

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“…Silt and clay are interpreted to have been transported seaward, primarily by storm-generated combined flows (cf. Plint et al, 2012b;Buckley et al, 2016). A low level of bioturbation indicates a sparse metazoan infauna, suggestive of stressed conditions, probably attributable to a low dissolved oxygen content (i.e., 2-5 mg/L -1 ) in the bottom water (cf.…”

Section: Sedimentologymentioning

confidence: 99%

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Chapter 1: Integrated, High-Resolution Allostratigraphic, Biostratigraphic and Carbon-Isotope Correlation of Coniacian Strata (Upper Cretaceous), Western Alberta and Northern Montana

Plint

Hooper

Grifi

et al. 2017

Bulletin of the American Museum of Natural History

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Lower to upper Coniacian rocks in the foredeep of the Western Canada Foreland Basin are dominated by mudstone and subordinate sandstone and were deposited on a very low-gradient, storm-dominated marine ramp. The rocks are organized into several scales of upward-coarsening, upward-shoaling succession, bounded by marine flooding surfaces. Abundant, publicly available wireline log data permit flooding surfaces to be traced for hundreds of kilometers in subsurface. Flooding surfaces can be considered to approximate time surfaces that allow the subsidence history of the basin to be reconstructed. Particularly widely traceable flooding surfaces were chosen, on pragmatic grounds, as the boundaries of 24 informal allomembers, most of which can be mapped along the foredeep for >750 km. Allomembers can also be traced westward into the fold-and-thrust belt to outcrop in the Rocky Mountain Foothills. Some flooding surfaces are mantled with intra-or extrabasinal pebbles that imply a phase of shallowing and, potentially, subaerial emergence of part of the ramp.The rocks yield a rich and well-preserved molluscan fauna dominated by inoceramid bivalves and scaphitid ammonites. Several major inoceramid speciation events are recognized. The lowest occurrence of Cremnoceramus crassus crassus, various species of Volviceramus, Sphenoceramus subcardissoides, and S . pachti all appear immediately above major flooding surfaces, suggesting that speciation,

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Section: Sedimentologymentioning

confidence: 99%

“…This facies is interpreted to represent a relatively distal (order of 100 km or more) offshore environment, above storm wavebase for mud (?50-70 m water depth, cf. Plint et al, 2012b;Plint, 2014).…”

Section: Sedimentologymentioning

confidence: 99%

Chapter 1: Integrated, High-Resolution Allostratigraphic, Biostratigraphic and Carbon-Isotope Correlation of Coniacian Strata (Upper Cretaceous), Western Alberta and Northern Montana

Plint

Hooper

Grifi

et al. 2017

Bulletin of the American Museum of Natural History

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“…Careful studies of fine-scale sedimentary structures commonly reveal a complexity of bedforms showing that mud floccules may be moved by tidal and other currents, with some units deposited by wave or storm activity over time periods of hours to days (e.g. Plint et al 2012;Schieber et al 2013).…”

Section: The Significance Of Field Contextmentioning

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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“…Petrographical studies (e.g. Macquaker et al 2007Macquaker et al , 2010Ghadeer & Macquaker 2011Trabucho-Alexandre et al 2012;Plint et al 2012;Plint 2013) have shown that many such laminae (in a descriptive sense) are actually thin beds (in a genetic sense), which may be internally (cross-) laminated. Therefore, they represent sedimentation episodes delimited by periods of erosion, nondeposition, or an abrupt change in depositional conditions, rather than continuous gravitational settling of mud.…”

Section: Origin Of Stratification In Shalesmentioning

confidence: 99%

More gaps than shale: erosion of mud and its effect on preserved geochemical and palaeobiological signals

Trabucho‐Alexandre¹

2014

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Bedload Transport of Mud Across A Wide, Storm-Influenced Ramp: Cenomanian-Turonian Kaskapau Formation, Western Canada Foreland Basin

Cited by 74 publications

References 37 publications

Chapter 1: Integrated, High-Resolution Allostratigraphic, Biostratigraphic and Carbon-Isotope Correlation of Coniacian Strata (Upper Cretaceous), Western Alberta and Northern Montana

Chapter 1: Integrated, High-Resolution Allostratigraphic, Biostratigraphic and Carbon-Isotope Correlation of Coniacian Strata (Upper Cretaceous), Western Alberta and Northern Montana

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

More gaps than shale: erosion of mud and its effect on preserved geochemical and palaeobiological signals

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