Abstract
The Smackover A zone of the Buckner Formation in northern Louisiana and southern Arkansas is lithologically similar to the more thoroughly studied upper Smackover Formation. However, in contrast to the regionally occurring thick, blanket-like ooid sands of the upper Smackover, the Smackover A zone carbonates occur as strike-parallel, individual carbonate sand bodies isolated within the clays, muds, and evaporites of the upper Buckner. This isolation and its potential effects on fluid movement, diagenetic processes, and ultimate porosity evolution in similar sequences across northern Louisiana and southern Arkansas emphasize the importance of a well-constrained core-based field study.
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