Mapped Intervals
Gross thickness from the top of Council Grove (A Shale) to the top of the Roca Shale (D Shale, base of Grenola, base of C Limestone)
- Nonmarine Silstones and Sandstones
- Nonmarne Shaley Siltstones
- Marine Carbonates (“clean”, shallow)
- Marine Silica-rich Rocks (deeper)
These four major groups are fairly easily recognized with minimum electric log suites.