168 W. C. MORSE AND A. F. FOERSTE 
Berea have thinned from 118 feet to a total not exceeding 75 feet 
in this distance. 
ELK LICK CREEK SECTION 
Feet Inches) Heet 
4. Sunbury shale. 
Pieces of black, fissile, carbonaceous shale directly above 
the sandstone layers. 
Bo BONED: BTU eka ae astern Sit eteedl age ees en Seen ee oeeen ae aren 
2 Bed jOrd: OnMalion wes omni Seite aia ie ae eee te 
Medium-bedded sandstones, ripple- Hiakede on the upper 
suriaces:.) Unquestionablysbereate mae earn eee 7 6 
Covered interval, which probably contains the contact 
of the Bediordjand Beteayer eer osetia 67 6 
T.) Olitorshale: ce 5 since wacgs i. eae eee Nee eee 30 
Black, fissile, carbonaceous shales, which extend down 
to the level of the highway at the spring. 
75 
In the second gully west of the schoolhouse in Petersville, the 
strata are exposed more or less completely from the Ohio shale to the 
lower Cuyahoga formation. By combining the exposures of both 
branches of this gully, an almost continuous section is had from the 
top of the Ohio to the top of the Sunbury. This is the key section 
to the lower Waverly problem. ‘The Bedford and Berea cannot 
have a total thickness of over 464 feet, showing a thinning of over 
70 feet in 18 miles or nearly 30 feet in 5 miles. The sandstones, too, 
have also practically disappeared, leaving only the shales behind. 
Whether these belong to the Bedford alone or to the Bedford and 
Berea is still an open question as both formations contain sandstones 
at Vanceburg. If a section of about’ normal Berea, underlain by 
shales only, were obtainable somewhere in the vicinity of. Elk Lick, 
then these 464 feet could be referred to the Bedford. However, 
such a section has not been and probably never will be found. The 
shales probably belong in part to the Bedford and in part to the 
Berea. If this be true they cannot be separated into the two forma- 
tions from here southward and for the present, at least, they will be 
designated together under the inclusive term Bedford-Berea. 
PETERSVILLE SECTION 
Feet Inches Feet 
A. Cuyaioge ormaiion a ere ee eee eee een ee: 553 
Medium to heavy-bedded, gray, argillaceous sandstones 
with shally partin gs: (2 asic conse ere arey an eeu a aeieacetste 14 
Covered intetvallno cue eee eee oe 4I 6 
