446 INDEX TO THE STRATIGRAPHY OF NORTH AMERICA. 



Pennsylvanian formations in the Raleigh, Charleston, and Huntington quadrangles. 

 [From folios of the Geologic Atlas of the United States, by M. R. Campbell.] 



Tlie Pottsville formations up to and including the Raleigli sandstone compose tlie lower 

 Pottsville as here treated and are collectively correlated by both the writer and Stevenson with 

 the Lee formation of the quadrangles farther south, though the writer is inclined to believe that 

 in some sections the lower beds of the Sewell formation may have been included in the Lee. In 

 general, however, the correlation is accepted, and the term Lee is preferred as a geographic 

 term to designate the lower Pottsville, that is, the beds extending to the top of the Raleigh 

 sandstone. Paleobotanically these beds are correlated*""* with the "Lower Lykens division" 

 and the "Lower Intermediate division" of the Pottsville type section in the anthracite region 

 (see p. 440), the "Lower Lykens division," including Lykens coal No. 5 and underl3dng beds, 

 being correlated with the Pocahontas formation or possibly the whole Thurmond formation, 

 and the higher zone, including the Lykens No. 4 coal, being referred to the Quinnimont 

 formation. 



