BLACK POINT TO TAGGARTS FERRY. 291 



stone.. A thin conglomerate layer with small pebbles shows a strike of 

 N. 53° E., dip at first lower, then 30° SE. Eastward along the strike 

 the sandstone becomes decidedly darker and more carbonaceous, the strike 

 changing to N. 35° E. On the east side of the promontory the strike is 

 N. 32° E., dip 45° SE. The dark carbonaceous sandstone series is con- 

 tinued on the east side of the promontory along the northern side of the 

 cove north of Black Point. About 110 feet of the sandstone series are 

 exposed. The lower 90 feet consist of the carbonaceous sandstones already 

 described, with which are intercalated thin conglomerate beds with pebbles 

 not exceeding 1 inch in size. Then occurs a layer of coaly shale 1 foot 

 thick, above which are 7 feet more of the dark sandstone. Above are 8 feet 

 of conglomerate with small pebbles, and, finally, 4 feet of the dark sand- 

 stone. On the north side of the cove north of Black Point the strike is 

 N. 68° E., dip about 45° SE. Southward there is no exposure until the 

 middle of the cove is reached, when the very coarse conglomerate comes 

 to view. 



The general strike of this conglomerate is about N. 22° E. At the 

 northern end of the shore exposures, however, there is marked variation in 

 strike. N ear the middle of the cove the conglomerate includes a sandstone 

 layer apparently striking N. 3° E., dip 80° E. Nearer the south end of the 

 cove the strike is N. 48° E., dip about 60° E. South of Black Point the 

 strike is N. 28° E., dip 60° E., the strike becoming about N. 22° E. farther 

 south. 



Notwithstanding this irregularity in the strike of the sandstone and 

 conglomerate series, and especially the discordance between the average 

 strike of the two series, the sandstone is believed to underlie the coarse 

 conglomerate, the clips certainly favoring this view. 



That part of the exposure from Black Point two-thirds of a mile 

 southward is serviceable in estimating the thickness of the conglomerate 

 series. About 380 feet of the coarse conglomerate series are exj)osed. The 

 lowest part of the section is found near the northern end of the line of 

 exposures. The upper beds are exposed along the shore, farther south. 

 Beginning with the lowest part of the section, four beds of conglomerate 

 maybe distinguished, 19, 20, 11, and 32 feet thick. Above these lie 35 

 feet of sandstone, separated by a thin conglomerate layer from 29 feet more 

 of sandstone; next, a thin black shale layer, then 23 feet of conglomerate 



