13 9.6 Sandstone, fine gr, buff wezth, even bedded, loc grossly X bedded beds to 1.5 but generally less commonly silty in lower + upper parts, more friable than ledge of ss above. loc, 12m, + X-12m. 14 0.8 Siltstone, shzly, zrgll, minor silty sh. ptgs 15 9.8 Sandstone, fine gr, even bedded thin bedded, few platy zones buff to brn wezth. Forms cliff, locally ledgy. 16 4.5 Shale black, fissile, with, thin interbedds blue gray wezth siltstone in upper. 0.5 (2nd loczly thin silty sl for another 0.5 above this) where bzso overlying ss.) Porcellanite 0.7 from top with 0.4 tough zrgill silt beneath 17 5.0 Siltstone and fine gr ss interbedded with bl. fissile shale. commonly about 0.8' bed. silty ss or sandy sltst at top + bzszl. 0.8 is