132 STRATIGRAPHY THE CONEMAUGH SERIES. 



Thickness Total 



Feet. Feet. 



Shale, variegated and sandy 24 74 



Sandstone, massive, gray or brown, Connells- 



ville 25 99 



Coal, Little Clarksburg 1 100 



Fire clay shale, Clarksburg 1 101 



Shale, red 23 124 



Sandstone, massive, gray, Lower Connellsville 35 159 



Coal, Normantown 1 160 



Shale, red, Clarksburg Reds 42 202 



Sandstone, massive or flaggy, gray or brown, 



Morgantown 30 232 



Shale, sandy 10 242 



Limestone, shaly, Orlando 3 245 



Coal, Elk Lick 5 250 



Fire clay and shale 4 254 



Limestone, shaly, Elk Lick 1 255 



Shale, sandy and red, Birmingham 10 265 



Sandstone, massive or shaly, brown, Grafton. 20 285 

 Limestone, shaly, with marine fossils, Upper 



Ames 1 286 



Shale, dark green, with marine fossils, Ames. . 12 298 

 Limestone, shaly, with marine fossils, Lower 



Ames 1 299 



Coal, Harlem 1 300 



Shale, red and variegated, Pittsburgh Reds.. 15 315 

 Sandstone, greenish gray, massive or shaly, 



Jane Lew 10 325 



Shale, red, Pittsburgh 42 367 



Sandstone, massive, gray or brown, Saltsburg 30 397 



Coal, Bakerstown 3 400 



Shale, gray and variegated 34 434 



Limestone, shaly, lenticular, no marine fossils 



found, Pine Creek 1 435 



Shale, sandy 5 440 



Sandstone, massive, gray, Buffalo 25 465 



Limestone, with marine fossils, Brush Creek 1 466 

 Shale, black, with plant and marine fossils, 



Brush Creek 8 474 



Coal, Brush Creek 1 475 



Shale, gray 10 485 



Sandstone, massive, gray, Upper Mahoning... 30 515 



Shale, gray and sandy 20 535 



Sandstone, massive, gray, Lower Mahoning... 25 560 

 Shale, dark, sandy, with plant fossils, Uffing- 



ton 15 575 



Coal, Upper Freeport, (top of Allegheny Series) 



The section as given above shows a total thickness some- 

 what greater than the average for the two counties, since many 

 of the formations are lenticular, being absent in many local- 

 ities. Numerous measured sections, giving detailed exposures 

 in different places, are published in Chapter IV. 



