The cross section and isopach maps of the Fort Payne mound unit and a structural map of the underlying Chattanooga Shale provide evidence for predicting undiscovered mounds. Waulsortian-type mounds are widespread on the surface of western Europe and North America. However, differences in morphology, porosity development, and the emplacement of petroleum in Fort Payne mounds are related to local paleogeography in a shallow cratonic-shelf sea subjected to cyclic regression and transgression due to regional tectono-eustatic events. Fort Payne mounds produced more than 5.5 million bbl of oil through 1980. Although the source beds have not been identified, petroleum may have been derived from the submound or mound units of the Fort Payne Formation, or from the underlying Chattanooga Shale.--Modified journal abstract.

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