38 
700 feet, since here the lower pink limestone of the West Point formation 
abuts against the older Gascons, cutting out all of the Bouleaux formation. 
Toward the east the fault nearly dies out, and in the Gros Morbe the drop 
appears to be reduced to at most 200 feet. The pressure appears to have 
come from the Chaleur Bay direction, either at the time of the Acadian 
orogeny or later during the Pennsylvanian and Permian deformations. 
In Port Daniel area when these strata and all the older ones were 
folded in later Devonian time, the general trend of the mountains, Ells 
states, was from northeast to southwest. It is this trend that is found 
throughout the land on the western side of Port Daniel bay (at West point 
the strike is south 50 degrees east magnetic), but to the east of this bay 
the trend lines vary greatly from this. In the inner bay at the church 
of St. George de Port Daniel, the strike is north 40 degrees east, at point 
l’Enfer it is north 25 degrees east, and at the southeast of Pillar point it is 
north 15 degrees west. It would, therefore, appear that the trend of 
south 50 degrees east of West point is about the average strike of the 
Silurian for Gaspe peninsula, and that farther east it was locally changed 
by more or less horizontal thrusting, most strongly into Port Daniel bay, 
changing the strike all the way from north 15 degrees west to north 40 
degrees east. To the east of Gascons the strike becomes again nearly 
normal, south 70 degrees east (magnetic). This inward thrusting of the 
Silurian folds is plainly shown by the distribution of the various formations 
as plotted on the map accompanying this paper. 
The map also shows that the open Silurian folds in the area of the 
barrachois, and the pinched ones of the eastern side of Port Daniel bay 
and McGinnis cove, plunge into the depths of Port Daniel bay. 
HISTORICAL GEOLOGY 
The geology of the north shore of Chaleur bay is of the northwestern 
near-shore side of the St. Lawrence geosyncline, the southern shore being 
in New Brunswick. It has been shown that in the Port Daniel-Gascons 
area, Palaeozoic time is represented by the Bonaventure formation of 
seemingly Mississippian time, the Silurian (Chaleur), and Ordovician 
(?Upper) series; and that the latter two systems transgressed over the 
older metamorphosed strata (Macquereau). To the northeast and 
seemingly more toward the central part of the St. Lawrence geosyncline, 
occurs a long series of Lower and Middle Devonian strata (Gaspe- 
Dalhousie formations) which are known to overlie the Silurian and trans- 
gress over the younger Ordovician. Marine deposition ceased with the 
earlier half of the Middle Devonian in the St. Lawrence geosyncline, 
though freshwater delta deposits continued to accumulate into Upper 
Devonian time. 
Toward the close of the Middle Devonian, the whole of the St. Lawrence 
trough was involved in mountain making, the Acadian disturbance, and 
the prophecy of this orogeny was already heralded in Middle Silurian 
time when volcanoes began to pour out much basalt and some (Black Ash 
cape, Gaspe peninsula, and southeastern Maine). During Lower Devonian 
time volcanic activity was again resumed, as is attested by the very early 
ash and tuff beds along with later lava flows, all of which are well seen in the 
Helderbergian strata about Dalhousie, New Brunswick. 
