A Manual of Elementary Geology Or the Ancient Changes of the Earth And Its in
The book A Manual of Elementary Geology Or the Ancient Changes of the Earth And Its in was written by author Charles Lyell Here you can read free online of A Manual of Elementary Geology Or the Ancient Changes of the Earth And Its in book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Manual of Elementary Geology Or the Ancient Changes of the Earth And Its in a good or bad book?
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503. Fig. 504. Goniatites Listeri, Martin, sp. Avicula papyracea, Goldf. (Pecten papyraceus, Sow. ) No similarly intercalated layer of marine shells has been noticed in the neighbouring coal-field of Newcastle, where, as in South Wales and Somersetshire, the marine deposits are entirely below those containing terrestrial and freshwater remains.^ Clay-iron-stone. Bands and nodules of clay-iron-stone are common in coal-measures, and are formed, says Sir H. De la Beche, of car- bonate of iron ming...led mechanically with earthy matter, like that constituting the shales. Mr. Hunt, of the Museum of Practical * Palaeont. Dunker and V. Meyer, f Phillips; art. "Geology, " Encyc. Vol. Iv. P. 17. Metrop. P. 592. C C 3 390 CLAY-IRON-STONE. [Cn. XXIV. Geology, instituted a series of experiments to illustrate the produc- tion of this substance, and found that decomposing vegetable matter, such as would be distributed through all coal-strata, prevented the farther oxidation of the proto-salts of iron, and converted the per- oxide into protoxide by taking a portion of its oxygen to form car- bonic acid.
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