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Also available:
World English Dictionary
Dictionnaire Français
footwall
foot·wall
[
ft wàwl
]
(
plural
foot·walls
)
noun
Definition:
rock layer under ore:
the rock layer that lies immediately beneath a vein of ore or other mineral deposit or a fault plane
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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