A. Guy Plint

Flexural bulges and foredeep basins: Dynamic tectonic control on shifting depocentres and condensed facies, Upper Cretaceous (Santonian), Western Canada Foreland Basin

Omar N. Al‐Mufti, A. Guy Plint, El Mahadia I Mohammed, Ireneusz Walaszczyk et autres

Abstract Upper Cretaceous (Santonian) shallow‐marine mudstone of the Puskwaskau Formation fills the foredeep of the Western Canada Foreland Basin and was deposited on a near‐planar, wave‐graded ramp. These strata span ~2.3 myr and form an 800‐km‐long prismatic wedge that, perpendicular to the …

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An upper Coniacian (Upper Cretaceous) dinosaur track record from a high-latitude delta plain setting, north-east British Columbia, Canada

A. Guy Plint, Charles William Helm

At a palaeolatitude of 58–59°N, sandstones of the upper Coniacian Marshybank Formation represent a delta that prograded into the Western Interior Seaway. Overlying delta plain deposits represent lakes, mires, floodplains, crevasse splays and anastomosed rivers. Ubiquitous root traces in delta plain sediments …

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The Cenomanian–Turonian boundary interval in the Western Canada Foreland Basin: Stratigraphy, geochemistry, geochronology and sea‐level changes recorded in expanded and condensed clastic successions

A. Guy Plint, Darren Richard Gröcke, David S. Selby, Ireneusz Walaszczyk et autres

Abstract A 300 m thick section at Nini Hill in the proximal foredeep of the Western Canada Foreland Basin is dominated by shallow‐marine mudstone that spans the Cenomanian–Turonian boundary (CTB). The section preserves a 185 m thick record of OAE2, characterised by …

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Metre-scale, upward-radiating burrow systems in Pleistocene aeolian sandstone, Cape South Coast, South Africa: a new ichnotaxon

A. Guy Plint, Charles William Helm, Mark G. Dixon

Late Pleistocene coastal aeolian sandstones, characterized by metre- to tens of metre-scale cross-stratification and dated to late Marine Isotope Stage 6 or early Stage 5 (153 to 114 ka), are exposed on the Cape coast of South Africa. At four localities, upward-radiating …

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Heron-like tracks from the Dunvegan Formation (Cenomanian), British Columbia: evidence for convergence in avian foot morphology

Martin G. Lockley, A. Guy Plint, Charles William Helm

A single trackway of the heron-like ichnogenus Ardeipeda sp. is described from alluvial plain sediments of the Cretaceous (middle Cenomanian; 96–97 Ma) Dunvegan Formation, British Columbia. This is both the largest avian footprint known from the Cretaceous, and the oldest (by >45 …

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Soft-sediment deformation structures in the Lower Cretaceous Robberg Formation, South Africa: distinguishing the effects of dinosaurs and earthquakes in an estuarine, rift basin setting

A. Guy Plint, Charles William Helm, Fred van Berkel, Mark G. Dixon

The Early Cretaceous Robberg Formation is a clastic, syn-tectonic unit deposited near the updip limit of the Pletmos Basin during initial separation of Africa and South America. Robberg sandstones were deposited in estuarine tidal channels whereas siltstones fill abandoned channels. Abundant soft-sediment …

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Failure to launch: Fate of the Second White Specks as a resource play was preordained by its Late Cretaceous depositional setting

Bruce S. Hart, Jüergen Schieber, Michael H. Hofmann, A. Guy Plint

ABSTRACT We compare the Second White Specks and Belle Fourche Formations (2WS/BF) of Alberta, Canada to the Eagle Ford Formation shale (EF) of southern Texas and, to a lesser extent, the Tuscaloosa marine shale (TMS) of Louisiana and Mississippi. These units were …

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Stratigraphic Emmental: High-resolution allostratigraphy reveals multiple intra-formational unconformities in shallow ramp mudstone: Upper Cretaceous, Western Canada Foreland Basin

Elizabeth A. Hooper, A. Guy Plint

Marine mudstone of Coniacian age (c. 89.51–86.49 Ma) was deposited on a storm-dominated ramp spanning the foredeep of the Cretaceous Western Canada Foreland Basin. Marine flooding surfaces define 18 allomembers that thin over 300 km, from c. 140 m in the proximal …

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An allostratigraphic framework for the Late Albian to Early Cenomanian upper Fort St. John Group across the foredeep of the Western Canada Foreland Basin, NE British Columbia

Piotr Jan Angiel, A. Guy Plint

Abstract The Upper Albian to Lower Cenomanian Hasler and Cruiser shales and intervening Goodrich Sandstone are up to about 800 m thick and constitute most of the upper Fort St. John Group in the foredeep of NE British Columbia. These rocks exhibit …

Crocodylian and dinosaur trace fossil assemblages from crevasse splay/levee and floodplain lake environments: middle Cenomanian Dunvegan Formation, northeast British Columbia, Canada

A. Guy Plint, Charles William Helm, Martin G. Lockley

Delta-plain strata of the Cenomanian Dunvegan Formation, in north-east British Columbia, represent anastomosed rivers that were flanked by vegetated crevasse splays, wetlands and shallow lakes. These rocks preserve a rich record of ankylosaur and ornithopod walking and wading tracks, as well as …

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Syn-depositional oil seeps in the Late Albian Paddy Member of the Peace River Formation (Early Cretaceous), north-central Alberta

A. Guy Plint, Kathleen M. Vannelli, Bruce S. Hart, Chunging Jiang

Abstract Controversy exists regarding the timing of emplacement of oil in the giant Athabasca and Peace River oil sands. Bitumen-cemented sandstones are present in the late Albian Paddy Member of the Peace River Formation; some cemented sandstones formed burrowed firmgrounds and reworked …

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Trans-Atlantic correlation of Late Cretaceous high-frequency sea-level cycles

A. Guy Plint, David Uličný, Stanislav Čech, Ireneusz Walaszczyk et autres

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