THE SONG ORY SHALE OF OHLO 2905 
SECTION OF QUARRY NO. 6. 
Total 
Thickness thickness 
No. feet, feet. 
4. Erie clay to top of bank - . - . - - - =SaeTiT 50 
3. Top of Sunbury (Berea) shale. It is mainly a black, quite 
massive bituminous shale; but some of it as weathered is rather 
bluish in color. Thin layers contain specimens of Lizgula melie 
H., but they are not abundant in that portion of the shale which 
is eroased at this locality - - - Sete - 8% 39+ 
2. Probably all of this zone is in the Szzdury shale; but it is ae 
covered and the contact with the subjacent Berea grit is poorly 
shown - = - - - = = - - - eae) 30%— 
1. Top of the Berea grit. A iayer from 7 to 16 inches in 
thickness, and perhaps more, forming the upper part of the Berea 
sandstone is hard, contains plenty of iron pyrites, is not valuable 
for stone and weathers into a somewhat shaly layer - - - 27%— 27%— 
There are four prominent courses of the Berea grit as worked 
in this quarry, with the following thicknesses: Course No. 4, 
including the pyrite layer at the top, 5 feet 4 inches; course 
INiow 2)16 feet Ss) inches); course No. 297 teet 1inch; No.1, /Oect 
4 inches. Below this 2 feet of sandstone is shown at the bottom 
of the quarry without reaching the base of the Berea grit. 
In quarry No. 8, adjoining the one just described, they have 
drilled into the Berea sandstone to the depth of 52 feet, and 
Newberry stated that in Cuyahoga county it is ‘something like 
60 feet in thickness.’’* In this quarry there is more shaly sand- 
stone at top than in No. 6 and a clay pebbly layer near the top 
contains a few specimens of Camarotechia. The following section 
is for the eastern end of the quarry, with the exception of its 
upper portion which was obtained on the northern bank. 
SECTION OF QUARRY NO. Q. 
Total 
Thickness thickness 
No. feet. feet. 
4. Lyre clay to top of bank = = = = - : - 10% 91% 
3. On the northern wall black shale or grayish-black when 
weathered - - - - - - - - - slays 814 
2. Black bituminous shale, some of it with a bluish tint, containing 
numerous specimens of Zingzla melie Hall and some of Orézczu- 
loidea Newberryt (Hall) Herrick. Swnbury shale - - - Il 68 
t Loc. cit., p. 186. 
