290 
Bay ot Fundy 
, 
Pereau R 
Habitant A, 
Canard R. 
Cornwallis R. 
N. 
Uriassic Wed Sandstone 
Trap 
Diagram 1.—Section, Bay of Fundy to Gaspereaux R. Horizontal scale 3 miles to 1 inch. Vertical scale 1600 feet to 1 inch. 
RECORDS OF POST-TRIASSIC CHANGES 
The general topography of the 
region alluded to is probably familiar 
to you all, as well as the common 
explanation of the geological structure, 
which appears to be, in the main, cor- 
rect. From the parallel east-north- 
east and west-south-west ridges of 
slate and sandstone of later Paleozoic 
age, which extend along the south- 
east side of the Cornwallis Valley, a 
slightly undulating rich farming coun- 
try stretches away to the north-west 
for some ten miles to the abrupt. 
escarpment bounding the valley on its. 
opposite side. The principal topo- 
graphic features of this beautiful 
valley are three low ridges parallel in 
general trend with the older hills. 
before mentioned and separated from, 
each other and from the bounding: 
ridges by long tongues of fertile. 
dyked marsh in the basins of the 
Cornwallis, Canard, Habitant, and 
Pereau rivers. The existence of these. 
ridges seems to be due to the occur- 
rence of coarser harder groups of 
strata in the underlying red sandstone. 
which dips with considerable unifor- 
mity and regularity to the north-west, 
at angles of from eight to ten degrees, 
The ridges correspond with the strike. 
of the formation and the valley topo- 
graphy is apparently one of erosion. 
The wearing out of the valleys took 
place when the country stood at a 
higher level, and the marsh deposits of 
