B. Wade 



7'7 



The Selma-Eipley contact is well established at Blue Cut on 

 the Mobile and Ohio Eailroad at the state line on the south- 

 ern extremity of McNairy County. From this point the con- 



FIG. 1. Map showing the areal geology of a portion of Tennessee 



and Mississippi. 



1, McNairy Sand Member; 2, Ripley Formation; 3, Selma Chalk; 

 4, Eutaw; 5, Tuscaloosa. 



tact may be readily traced both by lithological and faunal 

 relations to Coon Creek. It is thus evident that the Coon 

 Creek horizon lies just above the Selma chalk and at the 

 base of the Eipley. The Coon Creek horizon is thus strati- 



