HURON AND CLEVELAND SHALES OF NORTHERN OHIO 355 
a little farther east than opposite the first farmhouse east of the 
Hill’s. This shows a small synclinal fold and as the shore is fol- 
lowed eastward to Beach Park and beyond there is seen a succession 
of small anticlinal and synclinal folds as has been described by 
Dr. Kindle. He states: 
With few exceptions these structures have very low arches, nearly flat 
on top, which rise above their troughs from 3 to 8 feet. The width of these 
gentle undulations usually ranges between 200 and 350 yards, giving an effect 
not unlike the billowy surface of a subsiding sea. An exceptionally high arch 
just west of Eagle Point and another at Beach Park rise 20 feet or more. 
Detailed study of this lake shore section has shown that the east and west 
limbs of the series of low anticlinal rolls which succeed each other for more 
than 8 miles are essentially equal, and that for this distance the base of the 
Cleveland shale shows no westerly declination between Eagle Cliff and Lake 
Breeze." 
The sandstone of zone No. 6 of the above section is an easy 
one to follow along the lake cliff as long as it is above water or 
soon reappears in this succession of anticlinal and synclinal folds. 
It is a blue to bluish-gray, laminated sandstone which splits up 
into thinner layers, so that it may be called platy, and when it 
reaches lake level it breaks out in large rectangular slabs. The 
main line of joints run about 70° W. of N. 
Section on L. B. Ellis farm.—Another lake-shore section was 
measured on the L. B. Ellis farm, which is about two miles south- 
west of Beach Park. 
LAKE SHORE SECTION ON THE S. B. ELLIS FARM 
5 TOTAL 
Nic: THICKNESS Tae 
Ft. In. ‘Ft. In. 
12. Black, slaty, bituminous shale. A _ cone-in- 
cone lens almost at the base of this zone..... 6 6 14 4 
11. Soft, gray and blue, argillaceous shale ....... 
A 
Walco loo 
Gi IO 
PEP EACKISIANG reeds csc olan Bieac  ayalo Bois 6 SE a spe ss a 7 cre 
g. Soft, blue to gray, argillaceous shale......... oe 3 7 43 
Syeblack, bituminous shale. .................... 2 7 ia 
7. Soft, blue to gray, argillaceous shale. The 
total thickness of these gray to blue and black 
layers of shale between zones 6 and 12 of thick 
flack sialevis, 122 1s) 26. a6 cls dele sce ee ee 3h 7 a 
oo 
t American Journal of Science, 4th ser., XXXIV, 207, 20 
