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  • Word comparison: hanging wall vs. footwall

hanging wall vs. footwall

hanging wall

noun

  1. Mining.,  the underside of the wall rock overlying a vein or bed of ore.

  2. Geology.,  a mass of rock overhanging a fault plane.

footwall

noun

  1. Mining.,  the top of the rock stratum underlying a vein or bed of ore.

  2. Geology.,  a mass of rock lying beneath a fault plane.