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The AAPG/Datapages Combined Publications Database
CSPG Special Publications
Abstract
Estuarine Channel Fills in the Upper Cretaceous Dunvegan Formation: Core Examples
Abstract
The Upper Cretaceous Dunvegan Formation of western Alberta has been subdivided into seven allomembers (A to G), each separated by widespread transgressive flooding surfaces.
Wave-dominated, deltaic, depositional systems in member D are fed by a major distributary channel in the Waskahigan area. Channel fill facies comprise basal sandstones exhibiting tidal cross-bedding overlain by thick, brackish marine mudstones. The channel is interpreted to have been filled as a microtidal estuary during the initial phase of transgression of member D.
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