17 

 RICHMOND AND LORRAINE FORMATIONS. 



The Cincinnatian strata exposed in the vicinity of 

 Streetsville consist of the upper red unfossiliferous shales 

 of the Queenston division of the Richmond, the grey shales 

 and limestones with intercalated coral reefs of the marine 

 Richmond, and the lower arenaceous limestones and shales 

 of the Lorraine formation. 



In the valley of the Credit river above the railway 

 bridge, the sha'es and limestones of the marine Rxhmond 

 yield an abundant fauna. The lower part of the river 

 valley shows the underlying Lorraine shales and arenaceous 

 limestones of increasing thickness as the river is descended. 



Anticline in Richmond strata, Streetsville, Ontario. 



Richmond Formation. 



The red Richmond shales (Queenston) are not exposed 

 in the valley, but they may be seen in the vicinity. The 

 35066—2 



