80 University Geological Survey of Kansas. 
ure 1 is a reproduction of a ee 4 
diagrammatic section at Fort tenants 
RL 
CFP 
Scott prepared by Mr. Ben- 
nett and published as figure 
4 in volume I and as figure 1 
in volume III of this series 
of reports. At Fort Scott 
and elsewhere there is also a 
tendency to produce spher- 
oidal and ellipsoidal concre- 
tionary masses, some of 
which are more than two 
feet in diameter. They are 
largely calcareous in compo- 
sition, but contain so much 
clay and organic matter that Wig. 1. Section at Fort Scott in the Arete 
the calcareous nature is par- SE aeOy Aeore ah oer: coal. (After 
uially concealed. 
Fossils are fairly abundant in the vicinity of such concre- 
tions and particularly so in the limestone beds above men- 
tioned. | 
Sandstones in the Cherokee Shales.—Sandstones are very 
abundant here and there throughout the Cherokee shales. For 
years efforts have been made to find one or more sandstone 
beds of sufficient persistency to become valuable for strati- 
graphic studies. Where we can find them exposed at the sur- 
face this is possible in part. For example, the sandstone on 
top of the hills in the vicinity of Crestline and Timbered Hills, 
in Cherokee county, has a lateral extent of eight to ten miles. 
But it gradually disappears and so has “no beginning and no 
ending.” At other places in the Cherokee shales sandstone is 
very abundant and some of the finest flagging stones in the 
state come from this vicinity. Sandstones have a great ver- 
tical range, some of them being near the top of the shales, near 
the middle, and others nearer at the bottom, with an occasional 
bed of coarse sandstone immediately overlying the Mississip- 
pian. 
By far the greater part of all oil and gas produced in the 
state comes from the sandstones in the Cherokee shales. Well- 
drilling in the oil-fields shows a variation analogous to that 
found further east where the shales come to the surface. Oc- 
