Page 102 - Introduction to Mineral Exploration

5: FROM PROSPECT TO PREFEASIBILITY 85

(a)
Owenkillew River N

Road

Extent of survey

>100 ppb Au
Auriferous structure
0 300 m
Mineralized boulder
(b)
Owenkillew River N

Psammite Psammite Road

Psammite

>10 VLF e.m. Fraser Filter
Graphitic pelite
Fault
Lithological boundary 0 300 m
Auriferous structure
(c)
Owenkillew Owenkillew River N
vein
O'Hagan Curraghinalt Burn
vein Road
Road vein
Sheep Dip vein
Kiln shear Mullan vein
Shear
No.1 vein
FIG. 5.10 Drilling based on a Bend vein
combination of (a) geochemistry,
(b) geophysics, and (c) trenching Trench Crows Foot vein
and prospecting, Sperrin Auriferous structure
Mountains, Northern Ireland. Diamond drillhole 0 300 m
(After Clifford et al. 1992.)