- 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 process used in steel making in which pure oxygen is blown down onto the bath in a converterlike vessel.
Industry:Mining
A process used to recover precious metals from lead. It is based on the principle that if 1% to 2% of zinc is stirred into molten lead, a compound of zinc with gold and silver separates out and can be skimmed off.
Industry:Mining
A process whereby gamma rays naturally emitted by formations traversed by a borehole are measured. A tool containing a radiation detector is lowered into the borehole and gamma ray measurements are transmitted to the Earth's surface. The signals are utilized to produce a record of gamma rays detected in correlation with the depth of the detector in the borehole. The record thus obtained in the form of a curve indicating relative number per unit of time of natural gamma rays at different depths, is a conventional natural gamma-ray log, sometimes simply called a gamma-ray log.
Industry:Mining
A producer of metal who owns mines, smelters, and refineries, and sometimes also fabricating plants.
Industry:Mining
A product obtained by mixing, or blending, either portland, natural, or pozzolana cement with one another or with other inert substances.
Industry:Mining
A product of the action of sulfuric acid on clay, consisting chiefly of silica and aluminum sulfate.
Industry:Mining
A product of the coalification of fix bitumens rich in carbon; insoluble or only slightly soluble in organic solvents. It is subdivided into polynigritite, humonigritite, exinonigritite, and keronigritite.
Industry:Mining
A product of the weight, strength and the degree of packing, calculated per volume of a given drill hole.
Industry:Mining
A product resembling vaseline, but less homogeneous; produced from crude ozokerite.
Industry:Mining
