Chapter IX. 



MISSISSIPPIAN. 

 Color, light French blue. 

 Symbol, 13. 

 Distribution: Guatemala; eastern North America from Oklahoma to Nova Scotia; present but 



included in the "Carboniferous undivided" (14) in the Cordillera, Arctic region, and 



Newfoundland. 

 Content: "Lower Carboniferous" limestones and their equivalents where they are separated 



on the map from Pennsylvanian coal measures. In Guatemala the Santa Rosa formation- 



Mississippian areas. 



D 15-16 Guatemala and Chiapas. (See Chapter X, p. 425.) Page. 



1 16 Alabama and Tennessee 401 



J-K 15 Iowa, Illinois, Missouri, Arkansas, and Oklahoma 407 



J-K 16 Kentucky and Indiana 412 



J-K 17 Ohio and eastern Kentucky 414 



J-K 17-18 Pennsylvania, Maryland, West Virginia, and Virginia 417 



K-L 16-17 Michigan , 420 



L 20 Nova Scotia and adjacent New Brunswick. (See Chapter VIII, pp. 384-386.) 



M 20 Bonaventure County, Quebec 423 



I 16. ALABAMA AND TENNESSEE. 



In their southern extension into Tennessee and northern Alabama the Missis- 

 sippian strata were described by Safford ®^* as the "Siliceous group" (regarded by 

 him as equivalent to Burlington, Keokuk, and St. Louis) and the " Mountain lime- 

 stone" (regarded by him as equivalent to Chester), and these terms were used in 

 Alabama. The latest classification for western Tennessee is that given by Hayes 

 and Ulrich^^^ in the Columbia folio, as follows: 



Mississippian formations in western Tennessee. 



48011°— 12- 



-26 



401 



