- 行业: Mining
- Number of terms: 33118
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The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A survey in which a series of lines joined end to end are completely determined as to length and direction, these lines being often used as a basis for triangulation. It is used esp. for long narrow strips of land (such as for railroads) and for underground surveys.
Industry:Mining
A survey involving the chemical analysis of systematically collected samples of rock, soil, stream sediments, plants, or water; this expression may be further modified by indicating specif. the material sampled, as, for example, geochemical soil survey.
Industry:Mining
A survey made to confirm the positions of established survey stations in a mine.
Industry:Mining
A survey of radiation conditions at positions occupied by personnel working near apparatus emitting radioactivity.
Industry:Mining
A survey point marked with a stake or metal pin and used as a reference point for locating a specific spot in a predetermined direction.
Industry:Mining
A survey station secured in the floor of a mine roadway or working face.
Industry:Mining
