grade drift
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Drift mining — is either the mining of a placer deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. Drift is a more general mining term, meaning a near horizontal passageway in a mine,… … Wikipedia
Drift House: The First Voyage — Author(s) Dale Peck … Wikipedia
Perfect Drift — Thoroughbred racehorse infobox horsename = Perfect Drift caption = Perfect Drift at the 2006 Pacific Classic sire = Dynaformer grandsire = Roberto dam = Nice Gal damsire = Naskra sex = Gelding foaled = 1999 country = USA flagicon|USA colour = Bay … Wikipedia
Gopher drift — Gopher Go pher, n. [F. gaufre waffle, honeycomb. See {Gauffer}.] (Zo[ o]l.) 1. One of several North American burrowing rodents of the genera {Geomys} and {Thomomys}, of the family {Geomyid[ae]}; called also {pocket gopher} and {pouched rat}. See… … The Collaborative International Dictionary of English
Massachusetts Route 88 — Route 88 Route information Lengt … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
Anglo-Zulu War — Infobox Military Conflict conflict=Anglo Zulu War partof= caption= A recent depiction of the Battle of Rorke s Drift date=11 January 1879 4 July 1879 place=South Africa result=Decisive British Victory End of the Independent Zulu Nation combatant1 … Wikipedia
Geological history of Earth — impacting the Earth in a glancing blow. [cite journal | last = R. Canup and E. Asphaug | title = Origin of the Moon in a giant impact near the end of the Earth s formation | journal = Nature | volume = 412 | pages = 708–712 | date = 2001 | url =… … Wikipedia
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
Heavy mineral sands ore deposits — Heavy minerals (dark) in a quartz beach sand (Chennai, India). Heavy mineral sands are a class of ore deposit which is an important source of zirconium, titanium, thorium, tungsten, rare earth elements, the industrial minerals diamond … Wikipedia
Asia — /ay zheuh, ay sheuh/, n. a continent bounded by Europe and the Arctic, Pacific, and Indian oceans. 2,896,700,000; ab. 16,000,000 sq. mi. (41,440,000 sq. km). * * * I Largest continent on Earth. It is bounded by the Arctic Ocean, the Pacific Ocean … Universalium
