Memoirs of the Geological Survey of Great Britain, and of the Museum of Practical Geology in London Volume 4

Memoirs of the Geological Survey of Great Britain, and of the Museum of Practical Geology in London Volume 4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1859 edition. Excerpt: ...wrap around the flanks of the ancient rocks and ramify far up into the valleys. The rocks of this miniature mountain range form in their outline a striking contrast to the hills of more recent formations by which they are surrounded. These latter are for the most part tabulated, and planed off along their upper surfaces, as is strikingly exemplified even in the case of the hard limestone bosses of Breedon; but the rocks of Charnwood Forest form either knowls or serried ridges, which stand out in relief when viewed from the north-west. In the absence of organic remains, these rocks have been referred by Professor Sedgwick and Mr. Jukes to the Cambrian period, amongst other reasons, from their resemblance to the rocks of this age in Wales. They have been described in detail by Mr. Jukes, and the geological survey of the range has been executed by my colleague Mr. H. H. Howell. The general structure of the Forest-rocks is that of an anticlinal, first pointed out by Professor Sedgwick, and shown on Mr. Howell's section across the forest.f This axis runs in a slightly curved line from Whitehorse Wood, through Iveshead Lodge, along the little valley called Longdale, to Holgate Lodge. Along the line itself the beds are nearly vertical, and from either side they dip to the south-west and north-east at high angles. Geology of Charnwood Forest, appended to Mr. Porter's History of Charnwood Forest. To this work I must refer the reader for details, t Horizontal Sections of the Geological Survey, Sheets 48 and 52. As it is beyond the object of this Memoir to enter largely into details regarding the districts beyond the limits of the Ashby coal-field, it will be sufficient to give a short description of the Forest-rocks along a line which crosses more

Product details

  • Paperback | 54 pages
  • 189 x 246 x 3mm | 113g
  • United States
  • English
  • black & white illustrations
  • 1236857895
  • 9781236857897