footwall
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foot·wall
(fʊt'wôl') 
n. Geology
n. Geology
- The mass of rock underlying a mineral deposit in a mine.
- The underlying block of a fault having an inclined fault plane.
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categories related to 'footwall'
- Materials, Formations, and Substances - footwall: block of rock underlying a fault plane
- Mining - footwall: top of rock stratum beneath vein or bed of ore
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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