dragline deposits
1mining — /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… …
2coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …
3Yentna-Cache Creek mining district — Infobox Settlement name = Yentna Cache Creek mining district official name = settlement type = Alaska Mining District nickname = motto = |pushpin pushpin label position =left pushpin map caption = pushpin mapsize = mapsize = map caption =… …
4Oil shale in Estonia — Outcrop of Ordovician kukersite oil shale, northern Estonia Oil shale in Estonia is an important resource for the national economy. Estonia s oil shale deposits account for just 17% of total deposits in the European Union but the country… …
5aluminum processing — Introduction preparation of the ore for use in various products. Aluminum, or aluminium (Al), is a silvery white metal with a melting point of 660° C (1,220° F) and a density of 2.7 grams per cubic centimetre. The most abundant… …
6Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… …
7dredge — dredge1 /drej/, n., v., dredged, dredging. n. 1. Also called dredging machine. any of various powerful machines for dredging up or removing earth, as from the bottom of a river, by means of a scoop, a series of buckets, a suction pipe, or the… …
8Chelicerata — Temporal range: 445–0 Ma …
9Saskatchewan Highway 39 — Infobox road province=SK type=Hwy route=39 alternate name= maint=Ministry of Highways and Infrastructure Transport Canada length km=270.9 length round= 1 length ref= established= direction a=South starting terminus=North Portal junction=… …
10Topic outline of mining — For a more comprehensive list, see the List of mining topics. Mining is the extraction of valuable minerals or other geological materials from the earth, usually (but not always) from an ore body, vein or (coal) seam. Materials recovered by… …
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