Footnote 9: The Dinas rock used in the Vale of Neath (Wales) is an even more silicious material found in the Millstone Grit immediately below the Coal Measures.
The theoretical conclusion has been confirmed by the discovery of Coal Measures, with workable coal seams, at Dover at a depth of 2000 ft.
Round these central masses of early Palaeozoic rocks there is a broken ring of Carboniferous Limestone, and several patches of Coal Measures, while the New Red Sandstone appears as a boundary belt outside the greater part of the district.
The strata exposed on the last three of these coalfields are those of the upper Carboniferous or Coal measures; neither the Carboniferous limestone nor the Millstone grit being met with outside the limits of the coalfield of Coalbrookdale.
For an enumeration of the thickness of coal measures in America and the Old Continent, see Mantell's 'Wonders of Geology', vol.
The highest part of the system is the coal measures.
In this last case, the whole formation from the old to the new red sandstone becomes a series of coal measures.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "coal measures" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
