- 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 leaching method in which the slime and the leach solution are agitated in one or more agitators until the ore minerals have been dissolved. Some agitators have mechanically driven paddles or elevators inside an agitation tank, which serve to keep the pulp in circulation until dissolution is complete. This method may be either continuous or intermittent.
Industry:Mining
A lead- to steel-gray triclinic mineral, Pb<sub>3</sub>As<sub>4</sub>S<sub>9</sub>.
Industry:Mining
A lead weight attached to a lead line of up to 100 fathoms (183 m), used in hydrographic surveying.
Industry:Mining
A lead-silver sulfantimonide with 26.2% silver, some of which is apparently diaphorite and some canfieldite. Also spelled brongniartite.
Industry:Mining
A lease granted by a landowner during existence of a recorded mineral lease that is to become effective if and when the existing lease expires or is terminated.
Industry:Mining
A legal contract for the right to work a mine and extract the mineral or other valuable deposits from it under prescribed conditions of time, price, rental, or royalties.
Industry:Mining
A legal contract for the right to work a mine and extract the mineral or other valuable deposits from it under prescribed conditions of time, price, rental, or royalties.
Industry:Mining
A legal term that for Federally owned lands, defines mineral commodities that are sold by sales contract from the Federal Government. These are generally construction materials and aggregates such as sand, gravel, cinders, roadbed, and ballast material. The applicable statute is the Mineral Materials Sale Act of 1947, as amended (30 USC 602- 604, 611-615).
Industry:Mining
A legal term that for Federally owned lands, or Federally retained mineral interest in lands in the United States, defines a mineral or mineral commodity that is acquired through the Mineral Lands Leasing Act of 1920, as amended; the Geothermal Steam Act of 1970, as amended; or the Acquired Lands Act of 1947, as amended. These Acts are found in Title 30 of the United States Code - Mineral Lands and Mining. The leasable minerals include oil, gas, sodium, potash, phosphate, coal, and all minerals within Acquired Lands. Acquisition is by application for a Government lease and permits to mine or explore after lease issuance.
Industry:Mining
