ore-leaching tank - pad construction
- overthrust fault
- overthrust fault area
- overthrust faulting and folding
- overthrust fold
- overthrust folding
- overthrust mass
- overthrust mountain
- overthrust nappe
- overthrust plane
- overthrust sheet
- overthrust type
- overthrust-folding type
- overthrusting
- overtilted
- overtipped face
- overtravel
- overturn
- overturn of thrust block
- overturned
- overturned anticline
- overturned carinate anticline
- overturned fold
- overturned limb
- overturned plane
- overturned syncline
- overturning
- overturning skip
- overvoltage
- overvoltage effect
- overvoltage method
- overwash
- overwind
- overwind clearance
- overwind height
- overwinding precaution
- overworked
- overworked seam
- overworking
- ovicell
- ovoid