Clay [810-9 to 816-6 (5'4")] 810-9 to 814-5 (Limestone 814-5 to 814-7 (limestone clay gradation) 814-7 to 818-5 (Gray-blue fragmental flint.) AS # 13 -> 814-7 to 815-8 - Dark brownish gray frag flint + silexflint, some py + silt, interstitial root. 815-8 to 817 - Good frag flint, late gray groundmass bluish-gray clods + frag? 817 to 818-5 - Frag flint becoming siliceous cross-core structure Darker -> Frag good <- Sil. than above. Bee. Silt. clubbified siliceous also. 818-5 to 824/0 824-10 to 835-10 Silty claystone + siltstone siltstone, minor fine SS, with large fragments of silty claystone, calcareous limestone. 629 to 630-5 - Fragmented sil. hard clay in green silty claystone + clayey siltstone locally calcareous S Sample - 629-6 and 630-5