62 B GEOLOGICAL SURVEY OF CANADA. 



Argiintes and m widely separated localities. In exposures just outside the south point 

 limestones con- of g^ ec i ans Bav, the conformable junction with the limestones of the 



iorniaole. ».' 



blackish flaggy argillites is also shown, confirming the opinion of their 

 relation formed from the inspection of other localities. The rocks are 

 much broken by dioritic intrusions, but the limestones, becoming thin- 

 bedded towards the top, are distinctly interleaved with the argillites. 

 The south-east side of Skeclans Bay is composed of limestone, of the 

 usual character, with general north-easterly dips. At the bottom of 

 the bay this is followed, in ascending order, by the argillites, and to 

 Overlap of the north these are seen overlapped by agglomerate beds, which are 

 agglomerates, supposed to belong to the series (Subdivision D.) attached to the 

 Cretaceous coal measures. The first point south of Point Vertical 

 shows similar rocks to these last mentioned, which may there form 

 a small outlyer, and are certainly newer looking than any others of 

 the vicinity. 

 Persistent Nearly in the line of strike of the limestone of the south side of 



imebtone Dan g^edans -g a ^ we stward, on the south side of the West Arm of Cumshewa 

 Inlet, at a distance of sixteen miles, similar limestone is again found ; . 

 while argillites occur on the south-east side of the South Arm, holding 

 Monotis subcircularis. The general line of strike thus indicated is con- 

 firmed by the parallelism to it of that of the rocks of Selwyn Inlet, 

 and it is further probable that the limestone and argillites found west 

 of Log Point, on the south shore of Skidegate Inlet, belong also to the 

 same line of outcrop, which in this case can be traced in a general 

 Change in direction of N. 6*7° W for a total distance of thirty-three miles. The 

 general strike of the older rocks sweeps round to this bearing from 

 one of N. 35° West, which is the more usual in the southern portion of 

 the islands. 



With the exception of the limestones and argillites above referred 

 to, the rocks observed in the western part of Skidegate Channel are 

 entirely igneous, dioritic or felspathic. The argillites hold Monotis 

 subcircularis in great abundance. The existence in Skidegate Inlet of 

 several small projections of the older rocks among those of the Creta- 

 ceous coal-bearing series, has already beeii referred to. Of these the 

 South Island. m0 st interesting is a mass of limestone forming the south-eastern 

 point of South Island, which yielded a few fossils, on which Mr. 

 Whiteaves furnishes the following note. — 



1. A small oval, Terebrahda-Yike shell. Sections of some of these 

 specimens have been made, but the interior of each was found to be 

 full of crystalline calcite, and no information as to the structural 

 character could be obtained. It is not certain, therefore, to what 

 family this shell should be referred. 



2. Euomphalus sp. indt. 



strike. 



Fossils from 



