- 업종: 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 belt of barren ground or thin coal produced by the erosion of a seam by rivers that flowed during or soon after the deposition of the coal. These erosion channels are now filled with sandy sediment.
Industry:Mining
A belt of deformed rocks, in many places accompanied by metamorphic and plutonic rocks; e.g., the Appalachian orogen or the Alpine orogen.
Industry:Mining
A belt of relatively thin carbon or stainless strip steel alloyed and heat treated to withstand continued flexing over pulleys.
Industry:Mining
A belt of sea, not exceeding 12 nmi (22.2 km) in breadth, lying beyond its land territory and internal waters and, in the case of an archipelagic State, its archipelagic waters, in which a coastal State has sovereignty.
Industry:Mining
A belt with normal multi-ply construction, and in which balata is used to impregnate the plies and provide cover. It cannot be used in high temperatures but possesses a very high resistance to water absorption and is thus well suited for wet conditions.
Industry:Mining
