- 行业: 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 line of demarcation between the etched and unetched portions of the inside of an acid bottle, used to determine the inclination of a borehole by an acid-dip survey.
Industry:Mining
A line of detonating cord or plastic tubing in a blast hole that transmits the detonation from the trunkline or surface delay system down the hole to the primer.
Industry:Mining
A line on a map joining points at which metamorphism proceeded at similar values of pressure and temperature as indicated by rocks belonging to the same metamorphic facies. Such a line represents the intersection of an inclined surface with the Earth's surface corresponding to the boundary between two contiguous facies or zones of metamorphic grade, as defined by the appearance of specific index minerals; e.g., garnet isograd, staurolite isograd.
Industry:Mining
A line or surface within the Earth connecting points of equal temperature.
Industry:Mining
A line or surface within the Earth connecting points of equal temperature.
Industry:Mining
A line or surface within the Earth connecting points of equal temperature.
Industry:Mining
A line plotted from the results of a tensile test on metal, the loads being shown as ordinates and the elongations of the gage length as abscissae, thus relating the extension of the material under test to the applied load.
Industry:Mining
A line run in a survey of a mining claim bordering on a stream or other body of water, not as a boundary of the tract surveyed, but for the purpose of defining the sinuosities of the bank or shore of the water, and as a means of ascertaining the quantity of land within the surveyed area.
Industry:Mining
