4.7 Siltstone, at top very clayey to a silty clstn gradational with unit above; downward gets harder, silter + blockier, more carbonaceous changes to a gray blocky siltst. some Fe stain, but mottled gray to light to greenish gray, some solid silty bodies as small irrey lenses. Thinly Interbedded siltstone, silty shale (highly) and sandstone, platy + fissile locally, shaley beds dk gray, rest white cnk frags throught 2.5 Sandstone, fine-grained), platy, x lum. sparkly, numerous round grains, lenticular, has interbeds dark shaly silt plant frags. 6.0 Shale, blocky, gray, silty with 3 or 4 zones Fe impreg. about 0.2 thick. upper foot is more of a claystone. (Sample 2) + lamineae 5.6 thin Shale, silty with interbeds siltst, gray to brown, local carbonaceous & liquidic partings, fissile, plant frags throught. Sample 3 23