W-18 Carlile quad. Morrison section SW of W-13. Cebu Cr. section. goning up Rodwater sh. Dh gray fissile sh, sandy at top, with white wash, fine gr - spheunite is. conc. about 5' from top 12.5 Sandstone, fine qr. gray X-12m + X bedded at base grades to shale below, becoming yellow upward, Chiefly a slope of sandy yellow wash with some ledges platy thin-bedded SS. yellow ss is fine gr. with interstitial lime. Wash covered intervzl btw. gray+yellow ss chiefly shaly gray laminated Sandy siltstone at top is 0.3 bed hard calc. SS. 4.6 Interbedded siltstone and silty claystone + shale with some thin sandy zones + laminated whole is calcareous. At base structure is laminated and this continues to base 36