377 



rock-cutting, the strata dip southerly at angles of about 

 45°. A few yards farther, they are twisted and torn, 

 while just beyond this point, they again dip regularly at 

 high angles to the south. The general attitude of the 

 beds in the rock cutting suggests the presence of a synclinal 

 axis and this may be the main synclinal axis of the northern 

 S3'ncline. 



Fossils have not been found in these measures but in 

 the corresponding strata in the next syncline to the south 

 there have been found various characteristic Upper Cam- 

 brian forms including, Peliiira scarabeoides and other 

 trilobites of the genera Agnostus and Ctenopyge. 



Along the south side of City road, are outcrops of the 

 dark slates and fine sandstones of the Bretonian, striking 

 almost parallel with the street and presumably situated 

 on the northern limb of the synclinal fold and not far 

 removed from the axial line. If this be so, the strata 

 underlying the Valley and outcropping on the northern 

 slopes of the Valley are arranged in descending order. 



No strata outcrop along Stanley street which crosses 

 the Valley at right angles to its course. Small outcrops 

 of dark greenish or greyish slates with fine sandstone 

 beds occur in rock cuttings along the railway tracks beneath 

 the bridge on Stanley street and to the east and west of 

 this bridge. These measures dip steeply to the south and 

 strike at a very acute angle across the course of the railway. 

 The concealed contact between these lighter coloured 

 strata and the darker coloured shales of the Bretonian 

 division probably crosses Stanley street not far north 

 of the junction of this street and City road. The lighter 

 coloured measures underlie the dark Bretonian slates and 

 presumably belong to the Johannian division. 



Though no strata outcrop on Stanley street north of 

 the railway, there are a number of exposures of slate and 

 sandstone along the streets and lanes immediately to 

 the east. The measures there exposed belong in part to 

 the concealed horizons that belong, stratigraphically, 

 between the beds in the railway cuttings and the measures 

 exposed on Wright street at the junction with Gooderich 

 street. On Gooderich street and at the head of this 

 street, a series of exposures forms a nearly continuous 

 section of the Cambrian down to the contact with the 

 Pre-Cambrian. 



