- Industry: 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 ...
The change in length per unit length in a direction radially outward from the charge.
Industry:Mining
The changing of the chemically active surface of a metal to a much less reactive state. Compare: activation
Industry:Mining
The characteristic blue halo, or tip, of the flame of a safety lamp when combustible gases are present in the air.
Industry:Mining
The characteristic feature of this cut lies in the fact that the drill holes are arranged in zigzag. In this way a larger opening is obtained because the drill holes can break out between the preceding rows. Each vertical row of holes breaks out a layer. If the front holes do not break out to the full depth, the burnt-out holes indicate the direction of break for the following row of holes since the holes are arranged in zigzag. The name, triangle cut, is due to the distribution of the holes at the working face and the form of the initial opening.
Industry:Mining
The characteristic of a material that is manifest by strain when it is subjected to a magnetic field; or the inverse. Some iron-nickel alloys expand; pure nickel contracts.
Industry:Mining
The characteristic soil of most tropical regions. It is leached, red, deep, and clayey.
Industry:Mining
The characteristics (such as the degree of fusibility or the flame coloration) of a mineral observed by the use of the blowpipe.
Industry:Mining
The chemical assaying of drill cuttings for a specific metal or group of metals.
Industry:Mining
