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overburden |
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overburden Geology the sedimentary rock material that covers coal seams, mineral veins, etc. overburden [′ō·vər‚bərd·ən] (geology) Rock material overlying a mineral deposit or coal seam. Also known as baring; top. Material of any nature, consolidated or unconsolidated, that overlies a deposit of useful materials, ores, or coal, especially those deposits that are mined from the surface by open cuts. Loose soil, sand, or gravel that lies above the bedrock. (mining engineering) To charge in a furnace too much ore and flux in proportion to the amount of fuel. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Every shilling with which they overburden the inferior number, is a shilling saved to their own pockets. |
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