GEOLOGICAL SCALE OF OHIO 



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 GLACIAL DRIFT o - ss. 



UPPER BARREN COAL MEASURES 



UPPER PRODUCTIVE COAL MEASURES 



LOWER BARREN COAL MEASURES 



LOWER PRODUCTIVE COAL MEASURES 



CONGLOMERATE SERIES 



SUBCARBONIFEROUS LIMESTONE 



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WAVERLY soo-aoo/ib cuyahoga shale 



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I lis et-RC A GRIT 

 L II* BEDfORD SHALE 



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1I0« CLEVCLAIVSe SKALE 

 10. CRIE SHALC 



|0« H UROM SHALE* 



HAMILTON SHALE 



DEVONIAN LIMESTONES zs -rs 







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LOWER HELDERBERG LIME SfTONE »-•- 



NIAGARA SERJES 



CLINTON SERIES 

 MEDINA SHALES 



6» HILLS8CR.G SAN0STONE 

 6cG(JELPH LIMESTONE 

 60NIA6ARA LIMESTONE" 

 6«NIAttAftA 3HAIX. OAYTpN LlfflE 



HUDSON RLVER SERIES *»» - *•«• 



UTICA SHALES - «»-3~ 

 TRENTOH LIMESTONE 



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