ORES OF FIVE MINOR METALS 117 
by Harker, containing some mixture of the two rocks. After 
their solidification the country was invaded by granite and 
93 
Hag 
591 
2025" 
2 100 200 300 F00ft. 
cde 
Fra. 36.—~Tue Victoria MINE NEAR SUDBURY. 
A section through the Victoria Mine near Sudbury. The two lodes, E and 
W, are in quartzite and greenstone, The * norite ” is to the west of 
the western lode. ' D, diabase sill (after Miller and Knight), 
Subsequently by dykes of quartz-diorite. Earth-movements 
then sheared the rocks along weak surfaces, which especially