The Canadian journal of industry, science and art . ermostof these. Thus defined, the Medina and Clinton subdivision consistsin Canada of red and green arenaceous shales, succeeded by a coarseand somewhat loosely consolidated sandstone of a red colour, withoverlying soft red marls and shaly beds, striped and spotted withgreen, and capped by a bed of grey sandstone (known as the greyband,) of from ten to twenty feet in thickness. These strata, about614 feet in thickness at the western extremity of Lake Ontario, con-stitute the Medina series proper. The succeeding Clinton bedscomprise a series o
The Canadian journal of industry, science and art . ermostof these. Thus defined, the Medina and Clinton subdivision consistsin Canada of red and green arenaceous shales, succeeded by a coarseand somewhat loosely consolidated sandstone of a red colour, withoverlying soft red marls and shaly beds, striped and spotted withgreen, and capped by a bed of grey sandstone (known as the greyband,) of from ten to twenty feet in thickness. These strata, about614 feet in thickness at the western extremity of Lake Ontario, con-stitute the Medina series proper. The succeeding Clinton bedscomprise a series of green, greyish, and red shales—the latter, highlyferruginous—with some interstratified limestones and dolomites. Atthe mouth of the Niagara River, the Clinton division, as thus defined,is merely a few feet thick; but it increases in thickness towards thenorth-west, and attains to about 180 feet on the shores of GeorgianBay, by Cabots Head. * The same holds good however, to some extent, in other localities. MINERALS AND GEOLOGY OF CANADA. 209. Fig. 210.
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