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The Natural History of the County of Stafford
The Natural History of the County of Stafford Author:Robert Garner Subtitle: Comprising Its Geology, Zoology, Botany, and Meteorology: Also Its Antiquities, Topography, Manufactures, Etc General Books publication date: 2009 Original publication date: 1844 Original Publisher: J. Van Voorst Subjects: Natural history Staffordshire (England) Staffordshire History / Europe / Great Britain Nature / Ge... more »neral Nature / Essays Notes: This is a black and white OCR reprint of the original. It has no illustrations and there may be typos or missing text. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. Excerpt: 211 CHAPTER VI. "HAI. riKl. ns -- MILLSTONE GRIT MOUNTAIN LIMESTONE -- SILURIAN ROCKS. The north Staffordshire, or Pottery coalfield, is of a triangular form, with its acute apex to the north, and its base to the south. The strata at part of the west side, and for almost the whole of the east, rest upon elevated ridges of millstone grit, presenting frequently a bold and picturesque appearance. On the flanks of the large hill called Cloud these two ridges meet. At the base of the triangle the coal strata are in contact with the lower beds of new red sandstone, but faults appear here to run across. This coalfield is one large triangular valley, though several minor ridges run up its area, produced in some measure by the rising to the surface, or cropping out of the coal measures. On the eastern side of the field, the strata lying upon the grit dip conformably to it, or westwards, more to the south, however, on this line, W. S. W. Here, at the south part of the line, the dip is frequently about one yard in four, but with a greater declivity northward, two yards in five, for instance, at Knypersley. On the west side, the inclination or dip, being of course towards the east, is greater, generally one yard in from two to three, but here also much greater to the north, where the strata lie in some places nearly upright, th...« less