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Hard-rock geology
| Глоссарий горнодобывающей промышленности |
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Geology, английский
- The structural and age relationship between two or more rock strata or between mineral deposits and surrounding rocks.
- The science that treats of the constitution and structure of the earth, the operation of its physical forces, and the history and development of life forms and their structure, especially as recorded in the rocks.
- Геология
- Study of the planet earth—its composition, structure, natural processes, and history.
- The science of the physical history of the earth and its life, especially as recorded in the rocks of the crust.
Geology system, английский
Geology] (not preferred, английский
Refer to sandy outwash plain) a small outwash plain composed chiefly of sand deposited by meltwater streams flowing from a glacier. gg
Hard-rock driller, английский
- A driller who alibis for the low amount of footage of borehole drilled by claiming that the rock penetrated during his tour or shift was unusually hard.
- A miner employed to operate a drill in a mine in which the rocks are generally igneous or metamorphosed and considered hard as compared with softer sedimentary rocks, such as those in which coal and salt generally occur.
Hard-rock drilling, английский
Drilling done in dense and solid igneous or highly silicifled rocks, which can be penetrated economically only by diamond bits, as opposed to that done in softer rocks easily cut by roller or wing-type rotary bits.
Hard-rock mine, английский
Hard-rock miner, английский
Hard-rock mining, английский
Hard-rock phosphate, английский
Hard-rock tunnel boring, английский
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Hard-rock mine, английский
Hardness wheel, английский
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