How To Use Stopes In A Sentence
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Open stopes extending upward to grass roots are not uncommon in the area, and hikers and tourists should take note of this danger.
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The remnant ore inside the old stopes, pillars (low grade material not mined before) and tailings used as backfilling are being leached with mild acid solution.
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The stopes from the 49th to the 48th level also contained datolites but not as many - an estimated 400 pounds of nodules were recovered.
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In January 1933 the company announced that it was suspending mining below the 81st level and would confine production to the hanging-wall backs left in the old stopes and inclined shaft pillars.
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For the next ten years it was leased to tributors who worked the old stopes of the conglomerate lode above the adit level.
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The mineralized vein was less than 2 feet wide, and the old stopes show extensive support timbering, necessary because of fracturing and extensive alteration of adjacent wall rock.
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As a result of this practice immense stopes, or cavities, connected by narrow drives had been formed.
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Another major development was an underground ore handling system for the drill, extraction and trucking levels associated with the stopes.
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Company geologists regularly visit stopes and development headings to gather samples, map local geology, and give direction to miners.
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Mr Stopes was clearly amused by the confusion.
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Several pockets up to 1.3 meters and containing calcite crystals were exposed in the walls of the stopes.
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This meant we had to carry heavy battery-powered lights into the old stopes.
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For the next ten years it was leased to tributors who worked the old stopes of the conglomerate lode above the adit level.
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By this time the mine had three shafts, many large stopes and hundreds of metres of drives.
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We explored the areas that were not being mined, including miles of old abandoned drifts and stopes.
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Crystallized copper could still be found in the mined-out stopes, but we didn't find any datolite.
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By this time the mine had three shafts, many large stopes and hundreds of metres of drives.
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The life of this contrivance is short when used in open stopes, owing to the dangers of bombardment from blasting.
Principles of Mining Valuation, Organization and Administration
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We explored the areas that were not being mined, including miles of old abandoned drifts and stopes.
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Huge stopes with textbook square-set timbering began permeating the interior of Green Hill because the almost-vertical gold, silver, and copper ore-shoots were mined profitably on a large scale.
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There are numerous open stopes and interconnected, short, meandering, near-surface underground workings that are in varying degrees of collapse and very dangerous.
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Mr Stopes was clearly amused by the confusion.
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Stopes' first marriage was unconsummated and then annulled in 1916 and so she found herself researching the subject.
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It is useful to introduce a shorthand notation to facilitate the identification of various istopes.
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Chalcanthite was noted in several locations within the mine on this tour, with thick encrustations of bladed crystals in many of the older drifts and stopes.
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Dunham noted that fluorite was more common in stopes developed on veins lower down in the Melmerby Scar Limestone than in the upper flats.
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The new owners gave an extended lease of life to the mine by extracting ore from the footwall zone of the old stopes that were thought to have been mined out.
