Measures 
concealed 
G eologica/ Survey, Canada 
Dominion Mine, Buckingham Township, Quebec. 
Feet 
100 o 200 400 600 /000 
Metres 
100 80 60 40 2 o 
Post-Glacial 
Pre-Cambrian 
Legend 
Saxicava sand 
Se Gabbro 
ae) 
[eee 
Leda clay 
« Pye 
Blue quartz veins 
Anorthosite 
Pegmatite 
Ollawa &neiss 
3. Diorite,etc., 
2.Quartz-pyroxene gneiss 
|. Biotite-syenite Breiss 
Grenville limestone 
Graphite ore-body 
