24 



British Columbia Areas. 



Name of Formation. 



Age. 



Description. 



Flathead beds 



Elk Conglomerates, 



including Flathead beds, 

 6,500 ft. (1981 m.) 



■Cretaceous. . . . 



Sandy shales and shaly 



sandstones. 

 Conglomerates, sandstones, 



and some semi-cannel 



coal seams. 



Kootenay, 1,847 ft. 



(562 -9 m.) 





Sandstones, shales and coal 





. 



seams. 



Fernie, 3,000 ft. (914 •3 m.) 



Jurassic 



Shales, calcareous towards 

 base. 



Limestone Series, 



4,000 ft. (1,219 m-) 



Devono- 

 Carboniferous 



Massive, light grey lime- 

 stone. 





Cambrian 



Siliceous argillites. 



There appears to be no great unconformity between 

 the Palaeozoic and Mesozoic rocks on either side of the 

 mountains, but the contact between the Umestone of the 

 main range and the AUison Creek formation on the eastern 

 slope of the mountains is a faulted one, a great overthrust 

 having caused the limestone to override the Cretaceous 

 sandstone for a distance of several miles. To the east the 

 Kootenay formation is last seen at Burmis station, where 

 another fault of large dimensions with easterly downthrow 

 has brought the Kootenay rocks and Upper Cretaceous 

 strata into juxtaposition. 



The coals throughout this district are all of a very similar 

 nature, with the exception of a number of small seams found 

 near Fernie, overlying the main coal measures, which con- 

 tain coal of a semi-cannel character. 



Nearly everywhere the coal cokes readily and is utilized 

 to a large extent in the manufacture of that product; it is 

 generally rather friable, and often contains a somewhat 

 large am.ount of ash, but it has been found to be eminently 



