Gas-Well Sections in Central New York. — Prosser. 143 
Diagrammatic Section of the Rome Well. 
DEPTH. THICKNESS. FORMATION. 
125 ' 
350' 
650' 
860' 
125' 
225 ' 
300' 
Drift. 
Hudson shale. 
Utica shale. 
Largest flow of gas. 
375' 
Trenton limestone. 
1025 ' 
60' 
Birdeye limestone. 
1085' 
475' 
Calciferous formation. 
1560' 
72' 
Archean gneiss. 
1632 ' 
Bottom of well. 
The sample from a depth of 650 feet, which was composed 
partly of Utica shale and partly of limestone with almost clear 
Trenton at 658 feet, closely determines the line between the 
Utica shale and Trenton limestone. This gives a thickness of at 
least 300 feet for the Utica shale, or if the sample from a depth 
of 206 feet is from the bottom of the Hudson shale then there is 
a thickness of 444 feet. It is probable that the actual thickness 
of the Utica shale in this well lies somewhere between the two 
estimates of 300 and 444 feet. The thickness of the Utica 
shale in the wells near Rome is as follows: At Chittenango, 
22>< miles S. W. of Rome, 293 feet ;*at Sandy Creek, about 43 
♦Prosser, Bull. Gaol. Soc. Amer., vol. 4, 1893, P- 99t 
