W. A. Verwiebe — Berea Formation. 57 



Thick- 

 ness Total 

 No. Feet Feet 



8. Sandstones, mostly thin and bluish ; some of the 

 lower layers are buff in color and rather hard ; 

 interbedded are typical Orangeville shales .. 20 110^ 



7. Corry. Sandstone, mostly massive buff layers 

 up to 2^ feet in thickness, though some are 

 thin and flaggy .._ 28 90£ 



6. Cussewago limestone. Very typical, a blue 

 siliceous lime-rock which also carries much 

 iron. On weathering the carbonate of lime 

 is dissolved, leaving behind a crust of deeply 

 stained ferruginous sand. This separates in 

 more or less conchoidal layers, thus leaving 

 the unaltered rock with rounded edges If 62£ 



5. Cussewago shale (and Cussewago sandstone ?). 

 Sandstone and shale ; the sandstones resemble 

 the Corry very much; some layers are quite 

 massive (1 foot thick), buff in color and hard ; 

 the other sandstones and the shales are bluish- 

 gray - - 14 60| 



4. Shale, bluish, some sandy layers 10 46£ 



3. Sandstone ; in this interval there are again some 

 hard buff layers interbedded with blue sand- 

 stones and shales _. 6 36£ 



2. Riceville. Sandstone, rather limey with fossils 0£ 30£ 



1. Shale and thin sandstones to the level of the 

 R.R. tracks ; bluish- gray and mostly arena- 

 ceous 30 30 



Less than a quarter of a mile south of the station called 

 Miller Farm on the Oil City branch of the Pennsylvania R.R. 

 is a rather high rock cut. Here the above section was made. 

 It is an excellent one to show the character of the Berea for- 

 mation along Oil Creek. The Corry sandstone can be followed 

 without much difficulty along the R.R. tracks from here soutli 

 to Oil City, at which point it can be conveniently connected up 

 with the Allegheny River section. 



Section M, Shamberg Well Record. 



Thick- 

 ness Total 

 No. Driller's terms Geological equivalent Feet Feet 



15. Bluff rock Connoquenessing 60 992 



14. Slate and shale Pottsville&Shenango 



shale 140 932 



13. Mountain sand (90 ft.) Shenango sandstone 30 792 



12. Meadville upper sand- 



stone 60 



11. Slate and shale Meadville, Sharpsv. & 



Orangeville 100 702 



