95

noticeable. Eastward along the south boundary the grade of the ore
improves and continues to be of better quality along the east and north
edges. On the west side, the condition is much the same as along the

Legend

Areas of /solated
magsrels/le OUtrops

+ +
en
Quartz diorite partly
replaced by silicates
and masses oF magnetite

eA
Quartz dorite

Sca/e of feet :

i
dU roca it Eg

Geological Survey, Canada. |
Figure 19. Magnetite occurrence north of Prescott mine, Texada island, B.C. Contour interval,
20 feet.
south edge, but on the whole little or no sulphide is visible. Towards the
| centre of the mass, the ore is of better quality, the silicates are less abundant

and are more evenly dispersed.