strip the overburden

См. также в других словарях:

• strip mining — mining in an open pit after removal of the overburden. * * * Technique for the surface mining of coal by removing the soil and rock overburden above a seam and extracting the exposed mineral. The method is used to best advantage where the coal… …   Universalium

• strip mining — noun the mining of ore or coal from an open mine • Syn: ↑opencast mining • Hypernyms: ↑mining, ↑excavation * * * mining in an open pit after removal of the overburden. * * * strip mining, the work or business of operating a strip mine. * * *… …   Useful english dictionary

• Strip or stripping ratio —   The amount of overburden that must be removed to gain access to a unit amount of coal. A stripping ratio may be expressed as (1) thickness of overburden to thickness of coal, (2) volume of overburden to volume coal, (3) weight of overburden to… …   Energy terms

• strip mine — noun Date: 1926 a mine that is worked from the earth s surface by the stripping of overburden; especially a coal mine situated along the outcrop of a flat dipping bed • strip mine verb • strip miner noun …   New Collegiate Dictionary

• Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …   Wikipedia

• Coal mining — Men leaving a UK colliery at the close of a shift Surface coal mining in Wyo …   Wikipedia

• coal 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… …   Universalium

• Surface 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… …   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

• Mountaintop removal mining — Mountaintop removal site Mountaintop removal in Martin County, Kentucky M …   Wikipedia

• Surface mining methods —   Auger mining recovers coal through the use of a large diameter drill driven into a coalbed in the side of a surface mine pit. It usually follows contour surface mining, particularly when the overburden is too costly to excavate.   Area mining… …   Energy terms