2-4 ft 
Od 
Oc 
Ob 
Oa Olmsted 
Oc Chagrin 10 
Cb 
Ca 
gray blue fissile 
/ 
s. 
black shale 
wagon 
f 
roni 
K 
\ 
9' 5" blue sh. slightly fissiloaud more clayey than above but less 
than below, with 2 or 3 thin flags, 2-in. flag 3 ft. above 
u 0 • 
8" blub sh. base of Olnnted-. 
soft blue and dark slmlo with 5 
or 6 or more 1-3” flags and rusty 
nods, between the flags. 
dark sh. 
7* 
t 
Lake Erie 3V 
573 
■ ' ■ 
8” dark clayey shale with sharply 
striated plant straps 
mainly soft blue clay shale 
1’ black bands alternating with green, 
each 2-3 in. thick. 
2* dark sh. 
All the Chagrin dark 
1 "black**) shales are 
TthS 1 85SIt tlJ<m 11,089 
e oimstea. EXppsed 
e creek beds, Their 
top surfaces soon check. 
?n 
'These correspond, to, the 
best brick shale along 
Big Creek. 
645 
573 
72 
72’ r diff. in altitude 
87’ - estimated and measured thickness of beds 
passed over in going from lake shore to 
Hickle Plate R.R. track, 
fop of Cleveland to 740 ft. contour 
3 wiles south of Hickle Plate II.I;. 
I 
■St 
