The Fayetteville Formation, often referred to as the Fayetteville Shale, is made of three layers: a lower black shale, the Wedington Sandstone, and an upper black shale. The Fayetteville Formation rests on the Batesville Formation except in places where the Batesville has eroded and then directly on the Boone Formation. It is overlain by the … More Fayetteville Formation