WEST VIRGINIA GEOLOGICAL SURVEY. 63 



The following section was measured with aneroid from a 

 high knob, three-fourths mile southeast of Copley, northward 

 down to Sand Fork. Being on the dip of the measures, the 

 intervals are larger than true vertical measurement would 

 show : 



Copley Section, Courthouse District. 



Thickness Total 



Dunkard Series (385') Feet. Feet. 

 Sandstone, massive, pebbly, soft, capping 



knob, Upper Marietta 35 35 



Concealed, mostly shale 30 65 



Sandstone, flaggy, brown, Lower Marietta.... 35 100 



Shale, sandy, partly concealed 45 145 



Coal blossom, Washington (1215' B.) 145 145' 



Shale, yellow, Washington Fire Clay 45 190 



Sandstone, shaly at base, Mannington 50 240 



Concealed, with reds 75 315 



Sandstone, massive, pebbly, great cliff, 



Waynesburg (975' B.) 70 385 240' 



Monongahela Series (175') 



Concealed 15 400 



Sandstone, Gilboy 10 410 



Shale, variegated, partly concealed, to Sand 



Fork 150 560 



The following section was measured with aneroid down 

 a steep hill road, 1^> miles southwest of Gillooly : 



Gillooly Section, Courthouse District. 



Thickness Total 



Dunkard Series (290') Feet. Feet. 

 Sandstone, massive, brown, ] 



capping knob 30' [ Lower 



Concpaled 10 f Marietta... 55 55 



Sandstone, flaggy 15 J 



Concealed 15 70 70' 



Fire clay shale, green at top, Washington 20 90 



Sandstone, shaly 25 115 



Shale, variegated 40 155 ' 



Sandstone, shaly, Mannington 20 175 



Concealed, with red shale and thin sandstones 75 250 



Sandstone, massive, Waynesburg 40 290 220 



Monongahela Series (270') 



Concealed, mostly reds 45 339 



Sandstone, Gilboy 15 350 



Shale, red, with thin sandstones 60 410 



Sandstone, green, Uniontown 10 420 130' 



Sha'e, red, partly concealed 40 460 



Sandstone, shaly, Arnoldsburg 25 485 



Shale, variegated, with sandstone 30 515 



Sandstone, flaggy, Sewickley 15 530 110 



Shale, red and variegated, to creek (850' B.) . . 30 560 



