A Geological Memoir on a Part of Western Sussex; With Some Observations Upon Chalk-Basins, the Weald-Denudation, and Outliers-By-Protrusion

A Geological Memoir on a Part of Western Sussex; With Some Observations Upon Chalk-Basins, the Weald-Denudation, and Outliers-By-Protrusion

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1828 edition. Excerpt: ...taken from the diluvium by the river-side at Waltham, and from the galt at Wiggonholt. The beds of diluvial flint, mixed with iron-stone, found upon the ferruginous sand (upper part of Shanklin sand) have been noticed by Mr. Murchison, and his observations upon them apply to this district also. Although diluvial flint is rarely found upon the clays, there are some exceptions. A considerable sprinkling exists upon the clay between Asliington and Ashurst; but large deposits are found upon the sandy country, and must be supposed to have been detained there by entanglement in it, during the impetus of diluvian action, when every thing was swept along the slippery surface of the clay. I DISTRICT SURVEY. 51 But the largest diluvial deposits are found in the vicinity of the river fissures, and present many substances interesting to the local geologist. Besides those above-mentioned, ' as found upon the ferruginous sand, large masses of a ferruginous conglomerate occur, with rounded and angular flint imbedded; rolled lumps of blue clay and half-concreted masses of sand and gravel, which do not appear to belong to any of the strata below the chalk; and flint also, which is very unlike the chalk-flint The homogeneity of the alluvium of the Arun, (the only modern deposit in this district worthy of notice, ) from the chalk-hills northward, is not likely to be much disturbed till after passing the stony strata. The division of drift earth and stone into the two kinds here specified, is perhaps the best that can be made at present: --Diluvium, the washings of ancient, and alluvium, those of modem waters; the former, the " ten-e de transport" of the French. The only good objection that can be made to these terms, is, the difliculty of...
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Product details

  • Paperback | 32 pages
  • 189 x 246 x 2mm | 77g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236496574
  • 9781236496577