clay pellet cgl and scattered chert pebbles in basal 1.0+ 7.0 Sandstone as above but with course zones and (bssa) clay & chert pebble cgl 11.5 Shelly, silty, hard, and argilaceous siltstone, shelly. Dk gray to black on fresh, weathered light blue gray shelly to platy. Some thin sandy beds with OBSTN. 13.0 Sandstone, tabular, med to coarse grained with partings of finer silty ss and shaly some zones clay pellet cgl 3.1 Sandstone as above, but course x low less tabular more massive. 3.7 Interbedded fine-ss gr SS in beds aver. 0.2, and + silty to sandy dk gray shale + siltstone (transitioning between units above & below.