154 AN AMERICAN GEOLOGICAL RAILWAY GUIDE. (MO.) 



Missouri. 1 



CEOLOCICAL FORMATIONS OF MISSOURI, 



20. Quaternary, Alluvium, Bluff or 



Loess, and Drift. 



19. Tertiary, in Southeast Missouri. 

 1 8. Cretaceous, " " 



14. Coal Measures, 14 c. Upper. 

 14 b. Middle. 



" " 14 a. Lower. 



13. L. Carboniferous 



or Sub-Carb,, 13 e. Chestergroup. 

 " 13 d. St. Louis. 



" " 13 c. Keokuk. 



13 b. Burlington. 



" 13 a. Kinderhook or 



Chouteau. 

 10. Devonian, 10 c. Black Slate (Gen- 



esee ?) 

 5-7. Upper Silurian, 8. Oriskany. 



5-7. Upper Silurian, 7. L. Helderberg. 



" " 5. Niagara. 



2-4. LowerSilurian, 4 c. Cincinnati. 

 11 - 4 b. GalenaorRe- 

 ceptaculite l.s. 

 11 4 a. Trenton and 



Black River. 

 1st Magnesian Sac- 



charoidal s.s. 

 2d Magnesian I. s. 

 2d Sandstone. 

 " O 3d Magnesian I. s. 

 " ' Lower Magnesian 



I. s. and s. s. 

 " " " "2 b. Potsdam. 



1 b. Huronian. 

 1 a. Laurentian. 



Ms. | Hannibal and St. Joseph Railroad. 



Ms. | Hannibal and St. Joseph R.H. 



1. By Professor G. C. Broadhead, late State Geologist of Missouri. 



2. On St. L., K. C. & N. K. E., in Warren and Montgomery counties, we pass within a few 

 miles from Carboniferous, chiefly Lower part of Sub-Carboniferous through thin outliers of 

 Devonian to the Receptaculite (Galena limestone) and Trenton and Black River to the 1st Magne- 

 sian limestone and Saccharoidal sandstone; the latter well developed and very suitable for gl asp- 

 making purposes thick deposits and easy to crush. It is the equivalent of the St. Peter's sand- 

 stone. 



