HAWORTH AND BENNETT.| General Stratigraphy. 5. 
rection along a zone where water has dissolved away the upper 
part of the limestone, thereby liberating the chert concretions. 
These gravel-beds have worked their way eastward for ten or 
more miles, or, most likely, are residues in areas from which. 
the limestone has been entirely removed. 
Fauna.—See Doctor Beede’s chart, plate XLII. 
Cherryvale Shales.36 
The name Cherryvale shales is here used to designate the 
shale-bed with the Dennis limestone lying below and the Drum 
limestone lying above. 
Thickness.—The Cherryvale shales in the vicinity of Cherry- 
vale are from 50 to 125 feet in thickness. They reach their 
maximum thickness in the vicinity of Cherryvale and imme- 
diately to the north, where they constitute the main mass of 
the mounds and hills, such as the mound south of town where 
the brick-yards are established, the mound to the northwest 
where the other brick-yard is located, and the famous Bender 
mound, about eight miles out from Cherryvale. To the south- 
east they extend down as far as Coffeyville and beyond and 
form the principal part of the hill on which the Coffeyville 
water reservoir rests. It should be stated, however, that in- 
asmuch as the Dennis limestone, Mound Valley limestone and 
Bethany Falls limestone gradually disappears southward, and 
neither of them reaches the south line of the state, all of the 
interbedded shales and also these Cherryvale shales coalesce 
with the Pleasanton shales immediately under. 
It is probable that the upper part of the shale-beds in the Cof- 
feyville mound were formed long after the Pleasanton shales 
ceased their growth; indeed, it is practically certain that the 
uppermost part was formed subsequent to the formation of 
the Dennis limestone. To the northeast they maintain their 
thickness quite well by way of Urbana and Blue Mound and 
probably reach all the way to Kansas City, but their thick- 
ness is greatly reduced. 
Characteristics.—In the vicinity of Coffeyville the Cherry-. 
vale shales are emphatically arenaceous, but at Cherryvale 
they have lost this arenaceous property and have become a 
good grade of clay shales admirably suited for brickmaking 
and extensively used by the factories at that place. Farther 
36. Haworth, Prof. Erasmus: Univ. Geol. Surv. of Kan., vol. 111, p. 47. Law-- 
rence, 1898. 
