ST. FRANCOIS MOUNTAINS 



HORIZONTAL SCALE 



Fig. 5.15. Taken from Geologic Map of Missouri (1939). Section runs from Mt. Vernon to Perry- 

 ville. Mo. The wedge of Pennsylvanian strata at the left is added to show the Mississippian 



and Pennsylvanian unconformity as it occurs about 50 miles north of the line of cross section. 

 Section B-B' on map of Fig. 14.1. 



Fig. 



Fi9- 



5.16. 

 14.1. 



Section across northeastern Oklahoma. Taken from White (1926, PI. 1). Section C-C on map of 



