footwall
Mining. the top of the rock stratum underlying a vein or bed of ore.: Compare hanging wall (def. 1).
Geology. a mass of rock lying beneath a fault plane.
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Origin of footwall
1Words Nearby footwall
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use footwall in a sentence
But the hardest rock of the hanging or footwall, however, is seldom as hard as the harder class of ore.
De Re Metallica | Georgius AgricolaTo these timbers are fixed small timbers along the footwall, to which are fastened the lagging and ladders.
De Re Metallica | Georgius AgricolaStringers are given the same characteristics as veins, but divided into hanging, footwall, and other varieties.
De Re Metallica | Georgius AgricolaThe 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. LeithThe total area of ore measured on the footwall was 785 acres.
The Economic Aspect of Geology | C. K. Leith
British Dictionary definitions for footwall
/ (ˈfʊtˌwɔːl) /
the rocks on the lower side of an inclined fault plane or mineral vein: Compare hanging wall
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for footwall
[ fut′wôl′ ]
The block of rock lying under an inclined geologic fault plane. See more at fault. Compare hanging wall.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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