560 



GEOLOGY. 



Section in East-Central Kentucky. 1 



Names of Formations. 



Thickness 

 in Feet. 



Characteristics. 



.2 ft 



9£ 



Summit removed by erosion 

 Corbin conglomerate. . . 



Unconformity. 

 Lee formation. 



Rockcastle conglomer 

 ate lentil 



Unconformity. 



Pennington shale 



Newman limestone. . . . 

 Waverly formation. . . . 



Devonian. 



90 



250-300 



0-90 

 100-200 

 350-420 



Coarse pink sandstone or conglomerate 

 (lentil). 



Shale and sandstone with coal-beds; out- 

 crops of coal are of limited extent; rests 

 on Pennington shale in places. 



Coarse conglomerate, unconformable on the 

 Pennington shale or on Newman limestone. 



Red and green, with thin beds of limestone. 



Blue, slightly cherty near the base. 



Fine green shale with iron concretions; 

 green, calcareous, and argillaceous sand- 

 stone. 



Strata nearly horizontal. 



Section for Ohio. 2 



Names of Formations. 



Permian. 



Dunkard series. 



a f Monongahela series. 

 § Conemaugh series. . 



3 



Allegheny series , 



Pottsville conglomerate. 



Unconformity. 



Maxville limestone , 



Logan group 



Black Hand conglomer 



ate 



Cuyahoga shale 



Sunbury shale. 

 Berea grit. . . . 



Bedford shale. 

 Devonian. 



Thickness 

 in Feet. 



525 



200-250 

 400-500 

 165-300 



250 ± 



25 ± 

 100-150 



50-500 

 150-300 



5-30 

 10-135 



50-150 



Characteristics. 



Sandstone, generally massive; shales, lime- 

 stones, and thin coal-beds; beds non- 

 marine at least in part. 



Shales, limestones, and sandstones; impor- 

 tant coal-beds. 



Upper part mainly shales; lower part sand- 

 stones, with some shale and limestone. 



Shales, limestones, and sandstones, with 

 important coal-beds. 



Light-colored sandstones and conglomerates, 

 with some shale and a few coal-beds. 



Fossiliferous limestone, often brecciated. 

 Sandstone, massive conglomerate, and shale. 



Sandstone and fine conglomerate. 



Light-colored, argillaceous, with thin sand- 

 stone bands; shales contain ferruginous 

 nodules. 



Black bituminous shale. 



Sandstone, important for building purposes 

 and for grindstones; locally a repository 

 for oil, gas, and brine. 



Thin-bedded shales, with occasional thin 

 beds of sandstone. 



Strata dip at low angles. 



1 Campbell, Richmond (Ky.) folio, U. S. Geol. Surv. 



2 Prosser, Jour, of Geol., Vol. XI, pp. 520-521; Orton, Geol. Surv. of Ohio, Vol. VI, 

 pp. 33-39 



