footwall


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foot·wall

 (fo͝ot′wôl′)
n. Geology
1. The mass of rock underlying a mineral deposit in a mine.
2. The underlying block of a fault having an inclined fault plane.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

footwall

(ˈfʊtˌwɔːl)
n
(Geological Science) the rocks on the lower side of an inclined fault plane or mineral vein. Compare hanging wall
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

foot•wall

(ˈfʊtˌwɔl)

n.
1. the top of the rock stratum underlying a vein or bed of ore.
2. a mass of rock lying beneath a fault plane.
[1640–50]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

foot·wall

(fo͝ot′wôl′)
The block of rock lying under an inclined fault. See more at fault. Compare hanging wall.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.footwall - the lower wall of an inclined fault
inclined fault - a geological fault in which one side is above the other
wall - anything that suggests a wall in structure or function or effect; "a wall of water"; "a wall of smoke"; "a wall of prejudice"; "negotiations ran into a brick wall"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
We remain extremely excited by the highly prospective Zebediela project, and the acceptance of the mining right application grants us the flexibility to develop the existing nickel resource into a mine, and to continue developing the newly discovered [nickel-platinum group elements] resource found adjacent to and in the footwall of the existing nickel resource."
The fault separates hanging wall serpentinite from the footwall volcanic rocks.
Hole AL19-025 drilled the Promontorio zone from the eastern, footwall side and intersected 3.80 m of 415 g/t Ag, 2.68 g/t Au, 1.37% Cu, 6.20% Pb, 9.19% Zn; including 0.95 m of 1,566 g/t Ag, 6.72 g/t Au, 4.48% Cu, 9.27% Pb, 10.08% Zn, Hole AL19-025 was drilled approximately 350 m south of hole AL17-005 that intersected 20.15 m of 154 g/t Ag, 0.5% Cu, 2.3% Pb and 6.8% Zn.
The Deacon lode, now pierced by four drill holes sits in the footwall of the old Bellevue Mine and displays very similar characteristics to the historical high grade Bellevue lode.
The program includes approximately 1,555m of drilling in four drill holes to test new targets in the Buena Vista-Meagher Corridor and the virgin deposit footwall and commencing work on an initial resource estimate in accordance with NI 43-101 for the virgin deposit.
The only Eocene (Shaheed Ghat Formation) rock unit is exposed in the southern part of quadrangle, demarcating the footwall block of the Khilafat Thrust, whereas, the Shirinab Formation of Jurassic is limited to the northern flank exposed along a major fault.
In the afternoon there will be two further sites: the spectacular Lower Much Wenlock Limestone at Hobbs Quarry SSSI (SO 695 194), and the enigmatic late Ashgill/early Llandovery sediments exposed in the footwall of the Blaisdon Fault at Huntley Quarry (SO 714 196).
FNX, MacGibbon explained, was a small junior mining company he developed with just himself and a few million dollars when he was considering looking at mines located in the footwall, or outer edge, of the Sudbury basin.
The excavation face reaches the fault plane; a sudden subsidence of the footwall overlying strata is observed, and the fault fully opens along its dip direction.
This drift will offer first-time underground drill access to facilitate further definition of the parallel Footwall Zone and to improve the present resource in the Copperstone Zone.
As part of the first phase, the company has allocated about 15,000 feet of drilling, with the goals of further defining the parallel Footwall Zone and increasing the existing resource in the Copperstone Zone.