254 



In degree of consolidation, distribution, 

 amount of folding, etc., it belongs to the 

 overlying series and is probably not far 

 removed from it in age. It rests on highly 

 metamorphosed Cambrian and Pre-Cambrian 

 rocks and was evidently deposited in basins 

 between hills of these old rocks, or on the 

 slopes of such hills. Thickness, according to 



Fletcher 2,525 ft. 



(769-6 m.) 



The rocks about Sydney harbour lie in a broad anticline 

 which pitches to the northward. The axis of this anticline 

 runs along the western side of the broad peninsula which 

 lies between the east and west arms of the harbour. The 

 section is best shown beginning with the oldest rocks on 

 the brooks south of the west arm of Sydney harbour, 

 thence continuing along the east shore of this arm to 

 Point Edward. From there it can be followed, after 

 a long interval covered by the water, along either the 

 east or west shores of the main harbour. 



DETAILED DESCRIPTIONS. 



The Basal Division of the Windsor Series. — At Point 

 Edward post office are located the quarries of the Nova 

 Scotia Steel and Coal Co., one of the principal sources 

 of limestone for the iron furnaces. At the road crossing 

 at the end of the branch railway leading to the quarries 

 is the southern margin of the belt of Windsor rocks. To 

 the southward, in the distance, rise the high Coxheath 

 hills of resistant Pre-Cambrian and Cambrian metamor- 

 phic and plutonic igneous rocks. These hills are prob- 

 ably of pre-Carboniferous age. The broad belt of rather 

 low land intervening between these hills is underlain 

 by the slightly resistant, loosely consolidated conglomerates 

 and sandstones of the lower part of the Carboniferous 

 section which overlap on to the Pre-Cambrian hills and 

 dip northward. These conglomerates constitute Fletcher's 

 Conglomerate series and the lower part of his Limestone 

 series. 



Proceeding westward, down the road to the shore, 

 the first rocks seen are the topmost beds of the loosely 

 consolidated sandstones and conglomerates just mentioned. 



