- المجال: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
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 plain composed of flat-lying or gently tilted sedimentary rocks from which sediments have been removed down to some resistant bed that has controlled the depth of erosion. Compare: dip slope
Industry:Mining
A plain deflecting wedge, not equipped with a rose or stabilizing ring.
Industry:Mining
A plain of combined erosion and transportation at the foot of a desert mountain range, similar in form to an alluvial plain but beveling solid rock.
Industry:Mining
A plan drawn to a suitable scale showing surface contours or calculated contours of coal seams to be developed. These plans are important during the planning stage of a project.
Industry:Mining
A plan kept with the book in which stone-dust samples are recorded. It shows the sampling zones in each roadway, distinguished by color, letter, number, or mark, and identified with that roadway.
Industry:Mining
A plan or chart showing the positions of items of firefighting equipment. Separate plans are used for surface buildings and underground workings.
Industry:Mining
A plan or drawing, required by law, that shows the ventilation air currents in a mine and the means of controlling them.
Industry:Mining
A plan or project to convert a handmining or a conventional machine mining face to mechanized mining; i.e., the use of machines that either load prepared coal or cut and load coal simultaneously (cutter loaders). The scheme may also include the introduction of locomotives, skip winding, etc.
Industry:Mining
A plan showing lines of equal resistivity at a certain selected depth. It is prepared from data obtained by the resistivity method of geophysical prospecting.
Industry:Mining
A plan showing the proposed development of the mine workings, and kept for operational purposes.
Industry:Mining
