BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 4, pp. 225-240 May 20, 1893 



ON THE GEOLOGY OF NATURAL GAS AND PETROLEUM IN 



SOUTHWESTERN ONTARIO 



BY II. P. H. BRUMELL 



(Read before the Society December 29, 1892) 



CONTENTS 



Page 



The Areas under Consideration 226 



Gas-producing A rea 221 > 



Oil-producing' Area 226 



Authorities indicated 226 



Geologic Section of the Areas 226 



The geologic Formations involved 227 



Detailed Description essential 227 



Portage 227 



Hamilton 227 



Corniferous 228 



Oriskany 229 



Onondaga and Lower Helderherg 230 



Guelph 231 



Niagara 231 



Clinton 232 



Medina 232 



Hudson River 234 



Utica 234 



Trenton and Black River 2:14 



Geologic. Horizons in Ontario yielding I ras and Oil 235 



Oil Wells in the Corniferous Limestone 235 



Age and Depth 2:!.) 



Annual Output of Oil 235 



Chemical Composition of the Oil 236 



The Corniferous petroliferous over a wide Area 236 



The Medina as an ( )il-producer 231 i 



Gas-hearing Horizons : Clinton, Medina and ( >thers 236 



Localities indicated 236 



Depth at which Gas is found 236 



Records of twenty-eight Wells 237 



Gas-bearing Bed of the Medina 237 



XXXIV— Bull. Gj-.ui.. Soc. Am., Vol. 4, 1892. (225) 



