Abstract
THE Address of the President of the Geological Section having been devoted to the general questions involved in the origin, association, and working of coal, it was natural that other papers on the economic side of the science should claim considerable interest. Prof. Boyd Dawkins stated that the Channel Tunnel boring had been carried to a depth of 1500 feet, with the result of penetrating coal-measures dipping gently to the south at 1113 feet. Six seams, containing 10 feet of workable coal, had been pierced between that depth and the present bottom of the boring. The author endeavoured to show the probability that a thick series of coal-measures, with workable coals like those of Liége on one side and Somerset on the other, would be met with if the boring were continued, and pointed out the advantage possessed by the south-eastern coal-field in its moderate depth and the comparatively uncrushed character of the coal.
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Geology at the British Association. Nature 44, 479–481 (1891). https://doi.org/10.1038/044479a0
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DOI: https://doi.org/10.1038/044479a0