fine n.— «The production of rock flour is another venture under the auspices of Minerals for Agriculture. When companies mine basic rock for aggregates, the fines from this process, called rock flour, can be used to remineralise the soil...
rock flour n.— «The production of rock flour is another venture under the auspices of Minerals for Agriculture. When companies mine basic rock for aggregates, the fines from this process, called rock flour, can be used to remineralise the...
jumbo n.— «The Red Lake gold mine covers 55,000 acres of western Ontario, amid mountains, creeks, and pine forests populated by wild caribou. In its main shaft, which plunges 1,023m into the earth, drilling machines called jumbos extract...
king line n.— «“I want to climb hard routes, but I want something that inspires me” Sharma, 26, has the ability to climb just about anything anywhere. But he said he turns up his nose at any problem—no matter how challenging—that’s...
bump n.— «Dreger said data from the blowout, or “bump” as it is known in mining parlance, showed the initial motion of the earth was the same, though smaller in force, to the initial collapse. He said that analysis confirmed...
witness mark n. generally, an intentional, accidental, or naturally occurring spot, line, groove, or other contrasting area that serves as an indicator of certain facts; in geography and surveying, a blaze, cut, hole, paint splash, or message...