The thinning of an orebody. Here, the orebody had pinched to a narrow width. Exploring the stope requires the mine researcher to hunch over. If it becomes too thin, it will not warrant mining.
Adit
Chute
Collar
Country Rock   
Cribbing
Crosscut
Crusher
Deposit
Dip
Drift
Exploration
Fault
Footwall
Grizzly
Hanging Wall   
Headframe
Hematite
Hoist
Incline
Inclined Shaft   
Level
Magnetite
Outcrop
Ore
Ore Pass
Orebody
Overburden
Pillar
Pinch
Pitch
Raise
Shaft
Skip
Slope
Stope
Strike
Stull
Tailings
Timber
Vein
Winze
Pinch
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