A Rudimentary Treatise on Coal and Coal Mining... |
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Page 21
... Lower Chalk . Chalk Marl . Upper Greensand . Gault . Lower Greensand . upon granite . Similarly , it has to be borne. Chief Divisions . Norwich Crag . Red and Coralline Crag . Locality of Coal or Brown Coal . Faluns of Touraine , Molasse ...
... Lower Chalk . Chalk Marl . Upper Greensand . Gault . Lower Greensand . upon granite . Similarly , it has to be borne. Chief Divisions . Norwich Crag . Red and Coralline Crag . Locality of Coal or Brown Coal . Faluns of Touraine , Molasse ...
Page 22
... lower part of the series . The actual beds of coal , then , from an inch or two thick , up to 8 or 10 feet ( generally con- sidered " workable " when above 18 inches or 2 feet in thickness ) , and making up in the aggregate perhaps 100 ...
... lower part of the series . The actual beds of coal , then , from an inch or two thick , up to 8 or 10 feet ( generally con- sidered " workable " when above 18 inches or 2 feet in thickness ) , and making up in the aggregate perhaps 100 ...
Page 24
... lower on the one side of the line of fault than on the other . The amount of throw or leap may be only a few inches or feet , in which case the workings are not much affected ; but the movement may in many instances be shown to have ...
... lower on the one side of the line of fault than on the other . The amount of throw or leap may be only a few inches or feet , in which case the workings are not much affected ; but the movement may in many instances be shown to have ...
Page 27
... lower than the upper coals , and coupled with the smoothly polished under surface which may occasionally be noticed , lead me to think that the coal must have remained in a plastic condition long after it was covered up with sediment ...
... lower than the upper coals , and coupled with the smoothly polished under surface which may occasionally be noticed , lead me to think that the coal must have remained in a plastic condition long after it was covered up with sediment ...
Page 31
... lower coals , when it becomes evident that each was attached by a curious rounded base resembling a ball and socket joint . LEPIDODENDRON . The trees of this beautifully marked family also attained a length of upwards of forty Fig . 3 ...
... lower coals , when it becomes evident that each was attached by a curious rounded base resembling a ball and socket joint . LEPIDODENDRON . The trees of this beautifully marked family also attained a length of upwards of forty Fig . 3 ...
Common terms and phrases
accidents amount anthracite applied Architect ARCHITECTURE Author beds Belgium bords bottom brattice Bridge C.E. Illustrated cage carboniferous carboniferous limestone cloth boards coal-measures coalfield collieries Construction containing cylinder depth Derbyshire districts drum Edition employed engine enlarged fathoms feet of coal feet thick field fire-damp Forest of Dean fossil fuel furnace gauze geological inches diameter inclined ironstone Lancashire length levels light lignite limestone long-wall lower LUDGATE HILL measures method miles millstone grit mineral mines mode modern Newcastle North Outfall Sewer passing pillars pits placed Plates Practical pumps quantity Railway raised RALPH TATE revised roads rocks rods roof rope Rudimentary Treatise safety lamps sandstone scale Science SCOTT BURN shaft shales side South Wales square miles steam stone strata surface Tables thin Timber tion tons tubs upper valuable ventilation volume waggons wedging wheels whilst wood Woodcuts workable yards
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