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Allostratigraphy, Paleogeographic Evolution And Accommodation Controls Of The Lower Colorado Allogroup In West-Central Alberta, Canada (Western Canada Foreland Basin), Steve Morrow
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The Lower Colorado allogroup of the Western Canada Foreland Basin is a mud-dominated rock succession of marine, estuarine, and coastal plain depositional origin. Relative sea-level oscillations produced bounding discontinuities that allow the allogroup to be divided into four alloformations: the Joli Fou, Viking, Westgate, and Fish Scales.
Rocks of the Lower Colorado allogroup within the study area record marine depositional environments represented by 9 facies. The facies represent depositional environments ranging from offshore marine to lower shoreface through to upper shoreface and river mouth environments.
Geometric analysis of the isopach maps of the regional allomembers of the Lower Colorado allogroup …