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wall rock
noun
- the rock forming the walls of a vein.
wall rock
noun
- rock that is immediately adjacent to a mineral vein, fault, or igneous intrusion
Word History and Origins
Origin of wall rock1
Example Sentences
“They were pioneering techniques that didn’t exist at the time. They were kind of inventing the sport of big wall rock climbing,“ said Daniel Duane, author of “El Capitan: Historic Feats and Radical Routes.”
"The passengers are solid chunks of wall rocks that carry a wealth of details on conditions far beneath the surface of our planet over time."
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.
I could soon talk glibly of "blossom rock," "pay streaks," "cap rock," "wall rock," "rich color," and use the common terms of miners.
They also replace the wall rocks; limestone is especially susceptible.
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