MAKE A MEME View Large Image Coal seam blasting.jpg To facilitated mining of a coal seam in Gillette Wyoming blasting was used to loosen the coal after the overburden was removed Approximately half a million tons of coal in a seam 80 feet thick was loosened by this ...
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Keywords: Coal seam blasting.jpg To facilitated mining of a coal seam in Gillette Wyoming blasting was used to loosen the coal after the overburden was removed Approximately half a million tons of coal in a seam 80 feet thick was loosened by this single blast http //www osmre gov/scripts/album pl photo Blasting/1006 jpg;photo_height 150 UsGov Free for all use PD-USGov Coal mining in the United States Rock blasting Coal seams
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