footwall


footwall

footwall [foo t-wawl] ExamplesWord Origin noun

  1. Mining. the top of the rock stratum underlying a vein or bed of ore.Compare hanging wall(def 1).
  2. Geology. a mass of rock lying beneath a fault plane.

Origin of footwall First recorded in 1640–50; foot + wall Examples from the Web for footwall Historical Examples of footwall

  • The total area of ore measured on the footwall was 785 acres.

    The Economic Aspect of Geology

    C. K. Leith

  • But the hardest rock of the hanging or footwall, however, is seldom as hard as the harder class of ore.

    De Re Metallica

    Georgius Agricola

  • To these timbers are fixed small timbers along the footwall, to which are fastened the lagging and ladders.

    De Re Metallica

    Georgius Agricola

  • Stringers are given the same characteristics as veins, but divided into hanging, footwall, and other varieties.

    De Re Metallica

    Georgius Agricola

  • The ratio of ore area to total explored area, measured in the plane of the footwall, was 21-½ per cent.

    The Economic Aspect of Geology

    C. K. Leith

  • British Dictionary definitions for footwall footwall noun

    1. the rocks on the lower side of an inclined fault plane or mineral veinCompare hanging wall

    footwall in Science footwall [fut′wôl′]

    1. The block of rock lying under an inclined geologic fault plane. See more at fault. Compare hanging wall.

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