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coal seam

a bed of coal.
Origin of coal seam
1840-50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for coal seam
  • The change, he said, could have come from miners digging deeper into a coal seam.
  • It presents an equation for calculating the stress field in a coal seam adjacent to an excavation.
  • Thus, the nature of the coal seam itself is an important variable to be considered.
  • Surface coal mine operators frequently have to loosen the rock above the coal seam.
  • Contour mining allows for the partial removal of the coal seam at the elevation of the coal seam.

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