176 J. J. STEVENSON — CARBONIFEROUS OF APPALACHIAN BASIN 



the Tionesta of Ohio and Pennsylvania, and so the highest bed of the 

 Pottsville. 



WEST VIRGINIA, NORTH FROM THE KANAWHA RIVER AND CHESAPEAKE AND 



OHIO RAILROAD 



The effort now will be to trace the section through the northern part 

 of West Virginia. In this extensive area the sole reliance must be the 

 work of I. C. White, who has published the records of oil borings in the 

 central portions of the region and has supplemented them by many 

 carefully measured sections along the outcrops. His studies make 

 available also the scattered observations by other students, which will be 

 acknowledged in the proper places. To trace the section is compara- 

 tively simple in the eastern part of the area, where the well records have 

 been checked by measured sections, but in the central part of the area, 

 where one is dependent solely on well records, the work becomes excess- 

 ively difficult. The absence of limestones, the almost total disappear- 

 ance of the coal beds, and the abrupt variations in sandstones, elsewhere 

 persistent, render wholly impossible the tracing of minor horizons, and 

 at times even the boundaries of the formations become obscure. The 

 section will be followed northward and northeastward from the Kanawha 

 river to Pennsylvania through the easterly counties of the area ; after- 

 ward, by means of oil-well records, southwardly through the western 

 counties to the Kanawha, there to connect with the work already re- 

 viewed. The complexity of the problem is the excuse for the detail in 

 which it is considered. 



Major W. N. Page's carefully measured section at Ansted, 5 miles 

 north from the Kanawha river, in Fayette county, gives 1,051 feet as 

 the thickness of the Kanawha formation and 490 feet as the thickness 

 of the Sewell formation, resting on 60 feet of the Raleigh. The intervals 

 between the coal beds, as named by Doctor White, are 



Feet. Feet 

 Stockton 



Interval 50 



Lewiston (?) 50 



Interval 137 



Coalburg 1 90 



Interval with thin coal 79 



Winnifrede 218 



Interval 229 



Cedar Grove (?) 512 



Interval 108 



Campbells Creek 620 



Interval 93 



Eagle 724 



Interval 305 



Nuttall sandstone 



