H0NEYMAX GEOLOGY Of ANTIGONISHE COUNTY. il 



and extending to the north a further distance of 4£ miles. About 

 two miles to the west of this base we have what may be stricVy 

 regarded as a continuation of the same formation. The intervale 

 is occupied by lower carboniferous conglomerate and grits, which 

 doubtless overlap and obscure the underlying connection. This 

 continuation beginning on the north in the Arisaig mountains, 

 extends southward to a distance of about two miles north-west of 

 Antigonishe, bounding Pleasant Valley and the north carboniferous 

 area of Antigonishe on the west. 



I observed this continuation to extend to the west of Antigonishe 

 at least a distance of 6 miles in the mountains. The Falls of 

 James' River being formed by a magnificent and on either side 

 towering exposure of these metamorphic olive coloured slates. 



About a mile south-west of the outcrop of the section, the range 

 of mountains commences and continues to Antigonishe, their culmi- 

 nation being the Sugar Loaf, 760 feet above the sea level. The 

 summit of the Sugar Loaf is an igneous rock — diorite. About 2£ 

 miles north of the Sugar Loaf is another igneous centre. Appear- 

 ing first on the fields and brooks at Donald McDonald's (Brook), it 

 extends westward, outcropping and joining a lofty bluff on the east 

 of Right's River. Here the rock is amygdaloidal. It is uncertain 

 whether the diorite of the outcrop is the extension of the first or 

 second, or of both. I have heretofore regarded it as the continua- 

 tion of the second. I regard this eruption as contemporaneous with 

 that of the diorite of McLellan's Mountain and Sutherland's River 

 as post Upper Silurian and pre-carboniferous — Devonian, and the 

 metamorphic slates as metamorphosed Middle and Upper Silurian, 

 according to the analogy of East River, Pictou, McLellan's Moun- 

 tain, &c. — (Transactions 1870-71.) 



Continuing the line of section on St. George's Bay, we have 

 on the south side of the pre-carboniferous rocks described the lower 

 strata of the north side of the southern carboniferous area of the 

 County. These consist of conglomerate, breccia, sandstone and 

 limestone, partly covered by a great bed of drift, containing and 

 discharging large boulders on the shore of strongly characteristic 

 rocks of the Lower Arisaio; series of the Northumberland Strait 



