2.8 Claystone, silty, loc 2 clayey siltst in upper part, becoming less silty, more waxy downward. 5.0 Claystone, black, plastic, weathers to black popcorn crust. 8.5 Claystone, banded shades green and gray, bentonitic 0.6 Siltstone, calcareous along bedding planes, green, stained O-B 5.6 Siltstone yellowish to greenish gray, with interbeds of greenish-gray claystone and silty claystone, later becoming slightly cele. at base 2.2 Mudstone, gray, weathers greenish gray 0.35 Limestone, in irrey, grayish white powdery dense. Green claystone wash.