File:Coal seam blasting.jpg
Coal_seam_blasting.jpg (252 × 260 pixels, file size: 26 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:49, 10 May 2006 | ![]() | 252 × 260 (26 KB) | Zimbres | {{Information| |Description=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 bla |
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