55Q APPENDIX. 



Section in Eastern West Virginia and Western Virginia. 1 



Names of Formations. 



Summit removed. 

 Braxton formation. 



Thickness 

 in Feet. 



700 



Characteristics. 



Had and yellow shale, gray and brown shaly 

 sandstone, and coal-seams. 



Upshur sandstone. 



350-500 



White and brown, with conglomerate, shale 

 and coal. 



Pugh formation. 



300-450 



Brown and white sandstone, and blue and 

 black clay; thin coal-seams. 



Pickens sandstone. 

 —- Unconformity -^>~~ 

 Canaan formation. 



400-500 

 1000-1300 



Brown, gray, and white; some conglomerate, 

 and dark shale with coal. 



2. Red shales and brown sandstones. 

 1. Thin limestone. 



Greenbrier limestone. 



350-400 



Includes some red shales. 



S I Pocono sandstone. 



70-90 



Coarse and hard, partly conglomeratic. 



Hampshire formation, 



1500-1800 



Sandstones and shales, mainly red. 



Jennings formation. 



3000-3800 



Gray and buff sandstones, with shales. 



Romney shale. 



•«.— ~ Unconformity— 

 Monterey sandstone. 



1000-1300 

 50-200 



Black and fissile below, lighter and more sandy 

 above; thin bed of limestone at base. 



Calcareous, weathers buff. 



Lewiston limestone. 



550-1050 



Thin-bedded, impure limestone, with shale at 

 base; thin flaggy limestone, massive lime- 

 stone, and cherty limestone in order, above. 



Rock wood formation. 



100-900 



Quartzite at base at the east; shale with 

 thin beds of sandstone, limestone, and iron 

 ore above, and gray sandstone at top. 



Cacapon sandstone. 



100-630 



Red, mainly flaggy. 



Tuscarora quartzite. 



50-300 



White and gray. 



Juniata formation. 



205-1250 



Brownish-red sandstones and red shales. 



3 < Martinsburg she 



shale. 



°8M Shenandoah lime- 

 gp \ stone. 



°. \ Base not exposed. 



800-1800 Gray shale; sandy beds near top. 



2400 + 



3. Light gray, fossiliferous. 

 2. Darker gray, cherty. 



1. Partly magnesian. 



Carboniferous strata nearly horizontal; earlier beds folded, but not much faulted. 



1 The section above the Canaan formation is taken from the Buckhannon (W. Va.) folio, the 

 remainder from the Monterey (Va.-W. Va.) folio. Darton (Monterey) and Taff and Brooks (Buck- 

 hannon) U. S. Geol. Surv. In these folios the Ordovician and Silurian are classed as Silurian. 

 2 Middle and Upper Cambrian. 3 Lower Cambrian. 



