wall rock
Americannoun
noun
Etymology
Origin of wall rock
An Americanism dating back to 1855–60
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
All I could make out was the endless ramp, the wall rock, thick cables bolted to the granite, looping on ahead until they disappeared where the headlights lost themselves in the dark air.
From The Wall Street Journal • Dec. 13, 2013
I could soon talk glibly of "blossom rock," "pay streaks," "cap rock," "wall rock," "rich color," and use the common terms of miners.
From A Gold Hunter's Experience by Hambleton, Chalkley J.
Their principal occurrence is in distinct fissure veins in igneous rocks, with more or less replacement of the wall rock.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
The ore fills fissures to some extent, but is mainly a replacement of the wall rock.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
In mines where the range of values is narrower than the normal stoping width, some wall rock must be broken.
From Principles of Mining Valuation, Organization and Administration by Hoover, Herbert
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
