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United States Bureau of Mines
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 ...
Pivoted length of wood used to support a unit in a stamp battery.
Industry:Mining
In leveling an underground roadway, a part taken out below a bed.
Industry:Mining
Corn. A hard rock lining tin lodes.
Industry:Mining
Corn. A lode composed of hard unpromising feldspar containing minute particles of chlorite.
Industry:Mining
Process of inserting a line of casing into a borehole.
Industry:Mining
Excavated area under a drill-derrick floor to provide headroom for casing and pipe connections required at the collar of a borehole, or to serve as a covered sump.
Industry:Mining
Fragments of borehole wall-rock material that fall into a borehole, sometimes blocking the hole, and which must be washed or drilled out before the borehole can be deepened.
Industry:Mining
Grouting the strata to control ground water prior to the start of construction or excavation, such as shaft sinking. Precementation has been used in South Africa to depths of 4,000 ft ( 1,200 m) and considerable savings have resulted.
Industry:Mining
Chemical or mechanical treatment designed to increase or maintain the stability of a mass of soil or otherwise to improve its engineering properties.
Industry:Mining
Dewatering of clean coal or refuse with the aid of centrifugal force.
Industry:Mining