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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 ...
A refractory-lined steel or iron casting inserted into the tip of a mold and supported at various heights to feed an ingot as it solidifies.
Industry:Mining
A refuse elevator that extracts the first or heavier reject; usually situated at the feed end of a washbox.
Industry:Mining
A refuse elevator that extracts the second or lighter reject; usually situated at the discharge end of the washbox.
Industry:Mining
A region depressed relative to the surrounding region and separated from it by bordering faults.
Industry:Mining
A region in which the source, age, and regional distribution of a complex of minerals in a sediment are related.
Industry:Mining
A region nearly devoid of vegetation where erosion has produced, usually in unconsolidated or poorly cemented clays and silts, a dense and intricate drainage pattern with short steep slopes and sharp crests and pinnacles. Specif., the Badlands of the Dakotas.
Industry:Mining
A region of which all parts are similar in geologic structure and which has consequently had a unified geomorphic history; a region whose pattern of relief features or landforms differs significantly from that of adjacent regions.
Industry:Mining
A region surrounding an ore deposit in which the ore-metal concentration is intermediate between that of the ore and that of the country rock.
Industry:Mining
A regular interbanding of two or more types of sediment or sedimentary rocks due to a regular change in the conditions of sedimentation, such as alternation of wet and dry periods.
Industry:Mining
A regular series of ore chips or rock chips taken either in a continuous line across an exposure or at uniformly spaced intervals.
Industry:Mining