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SOME NOVA SCOTIAN ILLUSTRATIONS 



QUARTZ VEIN IN LAMINATED SLATES. 



A singular instance of a very narrow but tortuous vein seen 

 upon the shore about Eagle Head Breakwater, east of Liverpool 

 Harbor, is here reproduced. The contortions are in exact corres- 

 pondence with the corrugations of the enclosing strata. 



Another type of veins of much interest is where these latter 

 consist of granite, and, with other contact phenomena, finds 

 abundant illustration at many different points along the borders 

 of the principal granitic masses. A striking example of such a 

 granite vein or dyke of large proportions may be seen on the 

 shore opposite Coffin's Island, near the eastern head of Liverpool 

 Harbor. The beds exposed here are chiefly gneisses, quartzites, 

 and mica schists, of the Cambrian system, and have a very 

 regular northward dip of 40. Across these beds, however, and 

 almost at right angles, run heavy masses of coarse white 

 weathering granite, the dip and strike of the strata being 

 apparently wholly unaffected thereby. (See Fig.) In the same 



GRANITIC INTRUSION IN CAMBRIAN STRATA, BERLIN, QUEEN'S COUNTY. 



