- 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 zone in which the coal of a coal seam is missing, owing to a low-angle normal fault or a washout, squeeze, or roll. Compare: nip; pinch.
Industry:Mining
A zone in which the coal of a coal seam is missing, owing to a low-angle normal fault or a washout, squeeze, or roll. Compare: nip; pinch.
Industry:Mining
A<sub>2</sub>O<sub>3</sub>.3H<sub>2</sub>O or Al(OH)<sub>3</sub>; monoclinic; white; crystalline powder, balls, or granules; sp gr, 2.42; obtained from bauxite and used as a source of aluminum.
Industry:Mining
Abandoned and unreclaimed mines for which no owner or responsible party can be found. The reclamation and environmental conditions of such lands is then defaulted to the State or Federal Government.
Industry:Mining
Abandonment of a mining claim may be by failure to perform work, by conveyance, by absence, and by lapse of time. The abandonment of a mining claim is a question of intent. To constitute an abandonment of a mining claim, there must be a going away and a 19 relinquishment of rights, with the intention never to return and with a voluntary and independent purpose to surrender the location or claim to the next comer. Compare: forfeiture
Industry:Mining
