Feb., 1901] Bownocker — The Corning Fields. 5& 



Geology op the Region.— The surface of the territory lies in 

 the Lower Productive and Lower Barren coal measurers. The 

 highest hills reach up to or extend above the Ames or Crinoidal 

 limestone. In fact along the northeast extremity of the field the 

 hills are capped by the limestones which underlie the Pittsburgh 

 coal. The deepest valley— that of Sunday Creek— cuts through the 

 Middle Kittanning coal, a short distance north of Corning, but at 

 this town the seam named is under cover, while the Upper Freeport 

 coal is at about drainage level. 



The succession of strata under ground is shown by the following 

 record kept and furnished the Survey by Mr. G. W. Belong, Super- 

 intendent of Schools, Corning. The well is located on lot 154 of the 

 town just named, and the top of the well lies at the base of the 

 Mahoning sandstone: 



Thickness of Total 



Stratum Thickness 



Shale ; 25 feet 25 feet 



Bastard Lime 15 " 40 " 



Sand 10 " 50 " 



Coal (No. 6) 10 " 60 " 



White Slate , 65 " 125 " 



Sand , 15 " 140 " 



White Slate 25 " 165 "^ 



Blue 10 " 175 "^ 



Sand 10 " 185 '^ 



Slate .... 50 " 235 "■ 



Shale 35 " 270 " 



Sand 30 " 300 " 



Black Shale 10 " 310 " 



J^hne 25 " 335 " 



Shale with Concretions 100 " 435 "■ 



Slate 25 " 460 " 



Limestone'C?) 30 " 490 "^ 



Shale 35 " 525 '^ 



Salt Sand 30 " 555 " 



White Slate 100 " 655 "^ 



Slate and Concretions 25 " 680 " 



Shale 15 " 695 "^ 



Little Salt Sand 20 " 715 '» 



White Slate 100 " 815 " 



Slate and Concretions 100 " 915 "^ 



Brown Shale 40 " 955 "^ 



Black Shale 38 " 993 '» 



Top Berea 993 u 



Bottom of Berea IOO8 '^ 



