APPENDIX 



Generalized Section for Ohio — Continued. 



555 



Names of Formations. 



Thickness 

 in Feet. 



Characteristics. 





r Saluda beds. 



20 ± 



Mottled clays and thin-bedded limestones. 



ri 



Richmond formation. 



300 ± 



Alternating beds of shale and limestone, 

 highly fossiliferous. 



[5 



O " 



Lorraine formation. 



300 



Alternating beds of shale and limestone, 

 highly fossiliferous. 



o 



Eden (Utica) shale. 



250 



Black. 





Trenton limestone. 



130 



Light to dark-blue, crystalline, massive-bedd d 

 and fossiliferous; the most important oil 

 and gas horizon of the State. 



Strata dip at low angles. 



