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Showing 1 to 7 of 7 for “"Visean"”.
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Origin of Visean (Mississippian) Frobisher Group Coated Grainstone Shoals in the Williston Basin: Deposition and Diagenesis
The Frobisher Beds of southeastern Saskatchewan are part of an extensive conventional oil and gas play hosted in grainy carbonate rocks, long interpreted as marine oolites. This sedimentological and diagenetic study of core from the Frobisher in the Bryant and Pinto areas of southeastern …
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Sedimentology of the Mid-Visean limestones of the southern part of the Askrigg Block, North Yorkshire
The earliest Carboniferous deposits, resting with profound unconformity on Lower Palaeozoic rocks, have been mapped across their entire outcrop area on the Askrigg Block. The sediments, comprising approximately half of the thickness of the Dinantian Great Scar Group, have been subdivided into four …
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Mikrofazies, Sedimentationsgeschehen und paläogeographische Entwicklung im Verlauf des oberen Viséums im Untergrund der Niederrheinischen Bucht und des Campine-Beckens
The upper Visean (V3) and lower Namurian of the boreholes Schwalmtal 1001 at Viersen (Germany) and Geverik-1 at Geverik (The Netherlands) were the subjects of microfacies analysis and stratigraphic, sedimentologic and petrologic examination. The examined core material of the Schwalmtal 1001 …
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MISSISSIPPIAN MUD MOUNDS OF DERBYSHIRE (ENGLAND, UK): FACIES ARCHITECTURE AND BIOTIC EVOLUTION
… Monsal Dale Limestone For-mation, upper Visean (Brigantian), Mississippian, of the Derbyshire Carbonate Platform succession (UK), were selected as object of this thesis to address some of the open ques-tions on Mississippian mud mounds. Comparative investigation of mud mound lithofacies …
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Sequence stratigraphy and the development of a clinoformal carbonate ramp on an abandoned delta system: Mississippian Fort Payne--Salem Interval, Kentucky
… with a global sea level cycle in the lower Visean terminating in a major sea-level fall. The highly clinofonned toplapping supersequence reflects this long term, sea-level fall which prevented space from being created on the old delta top. The third-order sequences, although mappable between …
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BIOMINERALIZATION AND GLOBAL CHANGE: BIOTIC RESPONSE TO THE GONDWANAN GLACIATION AND SUBSEQUENT CLIMATE WARMING
… transition to icehouse conditions in the late Visean, with the onset of the Late Palaeozoic Ice Age, one of the major glacial events occurred in the Phanerozoic. By the Sakmarian (Early Permian) this long and dynamic glacial phase came to an end, and Earth’s climate returned to greenhouse …
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Stratigraphy and Tectonics: Multi-Disciplinary Evaluation of Tectonic Models For the Eastern and Southern Continental Margins of North America
… accretion of Carolina superterrane, and a Visean onset of the Alleghanian orogeny.</p> <p>Study 3: Stratigraphic response to deformation in a continental margin, Gulf of Mexico</p> <p>Using a newly developed stratigraphic analysis tool -- kinematic sequence stratigraphy, this study examines …