page 3 
</ 
^ s / < 
/ *- 
/ 
O 
19. Sandstone, fine-grained, irregularly 
interbedded and laminated with dark gray 
to carbonaceous sandy shale and clay- 
stone. Friable. 
18. Sandstone, medium -grained, white - 
weathering, friable, alternating with 
dark gray to black shale. Alternating 
beds chiefly 0. 4 to 1.0 foot thick. 
plastic, 
17. Claystone dark gray to black, some 
shaly with leaf fragments at top. Sandy 
at base, g' J ^ 
lo. Sandstone, chiefly medium -grained, 
clayey, massive. Lower foot contains 
scattered coarse grains of chert. 
/* 
15. Claystone, sandy, light gray; grades to 
unit below. 
5. 5 
22. O' 
l j U 
1 * 
7.. 0 
f 
if 
6 . 4 
4. 2 
14. Sandstone, medium -grained, friable, be- 
coming increasingly more clayey downward. 9.2' 
13. Claystone, sandy, to clayey sandstone. 
Light gray, weathers yellowish gray. 6.0* 
12. Sandstone, medium -grained, friable. 
Gray, with partings shaly lignite in basal 
2. 0 feet. 
10 . 6 
