9O STRATIGRAPHY GENERAL SECTIONS. 



Thickness Total 



Feet. Feet. 



Red rock 10 766 



Slate 5 771 



Red rock 30 801 



Sand, M organtown 65 866 



Slate, break 2 868 



Sand, hard 18 886 



Slate 5 891 



Limestone 5 896 



Sand, hard, Grafton 31 927 



Slate 10 937 



Coal, Harlem 3 940 328' 



Limestone 17 957 



Red rock 4 961 



Slate 5 966 



Red rock 40 1006 



Limestone 15 1021 



Slate 10 1031 



Pink rock 35 1066 



Limestone 15 1081 



Sand, Buffalo 20 1101 



Slate 30 1131 



Pink rock 20 1151 



Slate 10 1161 



Dunkard Sand (Mahoning) 65 1226 286' 



Allegheny Series (268') 



Limestone 15 1241 



Sand, Upper Freeport 65 1306 



Sand and shell 45 1351 



Sand, Lower Freeport 35 1386 



Coal, Lower Kittanning 5 1391 165' 



Sand 30'] 



Slate, break 2 \ Clarion 100 1491 



Sand 68 J 



Slate 3 1494 103' 



Pottsville Series (673') 



Sand 24'1 



Slate, break 3 [ Homewood 69 1563 



Sand 42 J 



Slate, shell 48 1611 



Slate, black 20 1631 



Slate and shell 26 1657 



Sand and shell 9 1666 



Limestone, blue 20 1686 



Sand, Salt 12 1698 



Slate and shell 136 1834 



Sand, black 6 1840 



Sand, gray, Salt 87 1927 



Slate, black 112 2039 



Sand, white, Salt 10 2049 



Slate, black 50 2099 



Sand, white, Salt 68 2167 673' 



Mauch Chunk Series (149') 



Slate, white 10 2177 



Red rock 12 2189 



Slate and shell 10 2199 



Red rock 10 2209 



