stoping

stoping
/stoh"ping/, n. Geol.
a process by which magmas move upward in the earth by breaking off and engulfing blocks of overlying rocks.
[1770-80; STOPE + -ING1]

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▪ mining
      in mining engineering, the opening of large underground rooms, or stopes, by the excavation of ore. Stoping is practiced in underground mineral mining when the surrounding rock is strong enough to permit the drilling, blasting, and removal of ore without caving. In mines where the rock requires no artificial support, the operation is known as open stoping. A common open-stoping method is room-and-pillar mining, in which pillars of ore are left standing to support the rock over a flat-lying ore body.

      In many mining operations, stopes must be supported artificially. The principal supported-stoping method, practiced on steeply dipping ore bodies, is cut-and-fill mining, in which the opened stope is back-filled with waste materials as each layer of ore is removed.

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  • Stoping — is a process accommodating the ascent of magmatic bodies from their sources in the mantle (geology) or lower crust to the surface. The process involves the mechanical disintegration of the surrounding country/host rock, typically through… …   Wikipedia

  • Stoping — Stop ing, n. (Mining) The act of excavating in the form of stopes. [1913 Webster] …   The Collaborative International Dictionary of English

  • Stoping — Stope Stope, v. t. [imp. & p. p. {Stoped}; p. pr. & vb. n. {Stoping}.] (Mining) (a) To excavate in the form of stopes. (b) To fill in with rubbish, as a space from which the ore has been worked out. [1913 Webster] …   The Collaborative International Dictionary of English

  • stoping — /ˈstoʊpɪŋ/ (say stohping) noun 1. Mining the act of creating a mine stope. 2. Also, magmatic stoping. Geology the breaking off and assimilation of blocks of rock by an intruding magma, a process by which magmas move upwards through the earth s… …  

  • stoping — noun In mining, the removal of the desired ore from an underground mine leaving behind an open space known as a stope …   Wiktionary

  • stoping —    The upward migration of the ceiling in a passage or room by the action of slabs falling [13] …   Lexicon of Cave and Karst Terminology

  • stoping — n. step shaped excavation in a mine used to extract mined ore from very steep shafts v. remove ore from a mine via a system of stopes …   English contemporary dictionary

  • stoping — noun cut a series of stopes in. → stope …   English new terms dictionary

  • stoping — noun ( s) Etymology: from gerund of stope (II) : a process by which ore is stoped; specifically : the process whereby intrusive igneous magmas are thought to make space for their advance by detaching and engulfing fragments of the invaded rocks …   Useful english dictionary

  • Stull stoping — is an underground hardrock mining method that uses systematic or random timbering ( stulls ) placed between the foot and hanging wall of the vein. This method require that the hanging wall and often the footwall be of competent rock as the stulls …   Wikipedia

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