Problems, 
Middle Mississippi River Region, Pleistocene Time 
4 feet Reddish clay, 
sticky when wet. 
3 feet Sand, medium grained. 
Reddish clay, 
oo sticky when wet. 
Silt. 
3 feet 
Fine yellow sand with 
1 foot few small pebbles. 
&, Feet Yellow silt. 
2 feet Hard reddish clay. 
5 feet Eu‘f-colored, 
fine sand. 
3 feet Gray clay. 
Fine sand containing 
m feat pipe-stem concretions. 
8 feet Gray clayey silt. 
ee ae Bee in ee ta es 
Base covered, . 
OG ee a eA EU RT RTE | 
BLE I 
Section of “Cuivre Terrace” on Cui Bas St. Charles County, a oo a> 
tance south 
section is shown in Figu 
TA 
vre 
of the ee of Chain-of-Rocks, 
e 9. 
Lincoln County, Miss 
