m upper part: weathers light gray with mottled iron stains. Base[1] 1,3 is dark gray slightly silty clay shaly clay. WA CONT- Breakdown: disconformity at top. top 0,9-1,0 .7-1.0 hard; siliceous claysone: oolitic fair flint clay. [Sample 1] A,B,C. Colour gray to dark gray with brownish stains from plant fragments Lower 3" locally a brown-gray clay shale: soft, friable, with finely comminuted frag plant mat'l (equal Dry Creek Canyon clay bed???) argill. so clearly in upper 5' of interval; sandier below this and beds separated by shaly ss partings: prev. thin shale and clay also, locally, and ss beds form channels cutting into adjacent ss beds. Entire unit may lense out laterally along the strike. Base[1] clay is under about 6" shaly SS, is a dark shaly clay, Fe stained and more indurated at base. Rests on Fe stained surface on underlying SS. DISCONFORMITY 5-8' fine gr light gray ss: dense in beds 0.6" -> 2.0 thick. stained buff to iron brown prominent vertical jointing as fracturing: gray in fresh surfaces only. END upper ss. DISCONFORMITY at base of basal ss: ripple marks 6" between crests: current ripple marks: 3