HONEYMAN NOVA SCOTIAN GEOLOGY. 119 



grooves and striae with those of the solid strata which are seen on 

 the removal of the overlying drift. These phenomena are the results 

 of action and reaction, the boulders having formed an acting part 

 of the great machine which grooved, striated, ground and polished 

 the surfaces of the hard rocks over which it passed. The striation 

 of the rocks is there readily associated with the transportation of the 

 quartzite and other boulders contained in the overlying drift. 



Returning to the meridian of Halifax, we find at, Point Pleasant, 

 {Vide preceding Paper,) great quartzite boulders, grooved and 

 striated, associated with amygdaloids, syenites, diorites, porphyries, 

 &G. This point is also remarkable for its roches moutonees. One 

 of these, which is the site of the Prince of Wales Tower, is 

 remarkably striking and instructive. Its ruts distinctly indicate 

 that the grooving and transferring agency advanced from north to 

 south. 



This rutted roche moutonee is the exposed edges of hard meta- 

 morphosed slaty strata. These have been much crumpled and 

 faulted. The polished rock shows these crumples and faults very 

 beautifully. The crumpled lines run east and west like the 

 general strike of the strata. The ruts commencing near the north 

 end of the exposure, continue in all their width and depth until they 

 are intercepted by a set of these crumpled /lines, which offer 

 unusual resistance. Here the graving point is pictured beyond the 

 crumples, and two or three small diverging lines have been made 

 which continue a few inches and disappear. Other ruts proceed- 

 ing in the same direction have had a like termination. These ruts 

 sometimes are ragged, like a furrow made by a sharp point drawn 

 across a pine board. The largest of these runs about 50 feet, a part 

 of it has been diverted from the regular course. A large propor- 

 tion of the ruts and striae run S. 20 E. magnetic; numerous striae 

 run S. 30 E. — many intermediate. — See Table. 



Exposed striated surfaces are very numerous in the Halifax 

 peninsula. There are but few of these and unimportant, which I 

 have not examined. With exceptional variations, the principal 

 directions of the striae may be regarded as above. This is also their 

 direction on the Dartmouth side, at the windmill and on the common,. 

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