| 41. | However, small fires were constantly erupting in the coal seams.
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| 42. | Methane is a natural component of most coal seams.
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| 43. | Softer Coal seams can also be extracted this way.
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| 44. | Burial converted the peat deposits to thinner coal seams.
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| 45. | Its miners'strike, but ran out of viable coal seams.
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| 46. | This is the only coal seam in the watershed.
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| 47. | It also occurs in lacustrine sediments and coal seams.
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| 48. | And although Cape Breton's coal seams are vast, most seep out below the ocean floor.
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| 49. | Smoldering trash in a dump ignited a coal seam.
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| 50. | Coal seam methane gas production started in 2002.
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