Samples collected from the top of an adit, opening or roof to determine grade
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Category: <span>B</span>
A gas powered earth moving machine capable of extending forward a bucket clad with teeth, and pulling the bucket back towards it, mechanically moving material where, and as, desired
Ambient, overall residual radioactivity inherent to an area and usually natural, but also manmade
A large plutonic mass having more than 402 mi (1042 km) exposed at surface of the earth
Where folds are overturned back toward the interior of an orogenic belt
A greasy, waxy, yellow to brown radioactive mineral, (Ce,La)(CO3)F
Waste or gangue material used to fill pits, openings and trenches created by mining an orebody
Dark, igneous, low-silica rocks
The ceiling or roof of an adit or mine opening
Non-ferrous industrial metals excluding precious, rare earth or radioactive metals. Base metals include copper, aluminum, lead, nickel, tin and zinc