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footwall
(redirected from footwalls)

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foot·wall  (ftwôl)
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.

footwall  (ftwôl)
The block of rock lying under an inclined geologic fault plane. See more at fault. Compare hanging wall.
ThesaurusLegend:  Synonyms Related Words Antonyms
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"

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Today, the footwalls of the Sudbury Basin, and previously underexplored offset dykes radiating out many kilometres from the Sudbury Igneous Complex, are the targets of much heightened activity.
Two decimetric porphyry dykes and their respective footwalls and hanging walls returned values of 12.
Inco has re-tapped old drill holes, driving directly into the Sudbury basin's footwalls to find copper zones and the PGM's associated with them.
 
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