[ezcs] THE CARBONIFEROUS BASIN IN NEW BRUNSWICK AT 
The lower Carboniferous of the lower part of this section is repre- 
sented by a great thickness of reddish shales, sandstones and conglom- 
erates with thin bands of limestone. The conglomerates occur frequently 
in bands of great thickness. 
Above this series the lower part of the Millstone-grit formation is 
represented by reddish, gray and chocolate coloured shales and sand- 
stones with conglomerates and thin beds of concretionary limestones, 
with a thickness of 650 feet. Above this are beds of coarse sandstone 
with red and gray shales and some thin seams of coal, representing the 
middle division of the Millstone-grit and aggregating a thickness of 
3240 feet, and these are overlaid by 2082 feet of reddish shales and red 
and gray sandstones which are held to represent the portion immediately 
beneath the Productive coal-measures. The total thickness of the 
Millstone-grit formation along the Joggins shore is therefore nearly 
6000 feet. 
In the eastern portion of the Springhill basin, McOuat estimated 
the thickness of the Millstone-grit formation at 2500 feet, consisting 
largely of red shales and flaggy sandstones, with bands of gray and 
greenish sandstone in the lower portion and conglomerates and sand- 
stones with red shales in the upper part. The thickness of the Pro- 
ductive measures is given by him as 4500 feet and of the upper Car- 
boniferous as 6000 feet.* 
In the province of New Brunswick the thickness of the Carbon- 
iferous rocks is evidently much less than in Nova Scotia. Though the 
area occupied by these rocks in New Brunswick is much greater than in 
the adjacent province the sediments present a marked resemblance 
throughout. The opposing dips of the several anticlines which traverse 
the basin in a generally northeast direction are very low, and from -the 
surface indications the entire volume of these rocks, above the lower 
Carboniferous formation, is quite limited. This view has, in so far as 
has been tested by borings, been conclusively confirmed. 
The evidence from the contained plant remains as to the exact age 
of the strata, other than that they are of the Carboniferous horizon is 
practically valueless. Lists of fossils are given in the Report of the 
Geological Survey for 1870-71, from collections made at widely separ- 
ated points, including places around the shores of Grand Lake, Baie des 
Chaleurs, Three Tree Creek, Bathurst, and the north side of the Bay 
of Fundy, which are stated to represent the middle and upper coal 
formations, but of these several from the same locality and from the 
same ledges are claimed to indicate both the Millstone-grit and the 
upper Carboniferous horizons. 

1 Annual Rep., Geol. Survey, 1873-74. 
