hanging-wall

hanging wall

noun
1.
Mining. the underside of the wall rock overlying a vein or bed of ore. Compare footwall ( def 1 ).
2.
Geology. a mass of rock overhanging a fault plane.

Origin:
1770–80

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
hanging wall
 
n
Compare footwall the rocks on the upper side of an inclined fault plane or mineral vein

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
hanging wall  
The block of rock lying above an inclined geologic fault plane. See more at fault. Compare footwall.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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