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16. Clays tone j silty, variegated, covered 
by wash and crust of clay. Upper 10.0 
chiefly greenish gray with minor red 
mottling, lower 11.0 is chiefly red in 
upper part green at bace, with some 
scattered ferruginous specks from 
weathered siderite spherulites up 
to 2mm in diameter. 21.0 
15. Sandstone, fine to coarse grained and 
conglomeratic. Chert, quarts, and quart- 
site granules and small pebbles in 
irregular beds c iefly in lower 4«0 
feet. Plant stem molds common. Weathers 
rusty orange— brown to red. 1B.0 
Clay stone, silty to sandy, dark 
brown i s h-gray , se le n i ti c * 
>•> 
w * 
Clays tone , 
sandy, gray .to, brownish 
12. Sandstone, clayey, and sandy claystone, 
scattered coarse grains and granules 
of chert, polished chert and quartzite 
pebbles in float. Upper 0 9 o to 1.5 
feet is white-weathering, hard, flaky 
claystone, may be porcellanitic. 
14.0 
