5i 



Thickness, 

 feet, metres. 



i. Rather compact blue limestone, with 

 little or no chert, and fossils less 

 abundant. This portion extends to 



the water level in the lowest hole 5 1-52 



The fossils found in this quarry are given in the first 

 column on page 53. 



The Canadian Portland Cement Company's 

 Quarry. One mile westward from the last place discussed, 

 on the Grand Trunk railroad, is one of the Canadian 

 Portland Cement Company's plants. In the manufacture 

 of their product they use the Onondaga limestone and a 

 post-glacial clay, both obtained nearby. This cement 

 plant has a capacity of 3,500 barrels per day — over one 

 and a quarter million barrels annually. The quarry is 

 located a short distance to the west of the buildings, on a 

 small low anticline, the axis of which runs a little to the 

 north of east. In the quarry proper the beds dip off 

 rather sharply to the north-northwest bringing in the 

 higher beds in that portion of the pit. The best collecting 

 is in the weathered portion of these upper beds, although 

 much depends on the most recent stripping. The more 

 massive beds of the interior and eastern side of the quarry, 

 however, are not lacking in interest, for it is in them that 

 the great masses of coral may be found. The surface of 

 the extreme eastern side is well glaciated. 



Section of the Canadian Portland Cement Company' s Quarry. 



Thickness, 

 feet, metres. 



6. Soil and drift 3 -915 



5. Dark bluish limestone containing much 

 black chert. Weathered surfaces 

 rough and uneven. These layers are 

 sometimes separated from the under- 

 lying beds by several inches of shale. .4-5 1 -372 

 4. Somewhat massive, sub-crystalline, blue 

 limestone with a small amount of 

 chert, and corals rather abundant.. . . 3-5 1-067 

 35066— 4^ 



