Petrifactions And Their Teachings Or a Hand book to the Gallery of Organic Rem
Petrifactions And Their Teachings Or a Hand book to the Gallery of Organic Rem
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In our eReader you can find the full English version of the book. Read Petrifactions And Their Teachings Or a Hand book to the Gallery of Organic Rem Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Petrifactions And Their Teachings Or a Hand book to the Gallery of Organic Rem
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The beds that supply the stone are at a depth of about fifty feet below the summit, and are worked by shafts. The upper twenty-five feet consist of clays alternating with calcareous stone ; the lower, of fine-grained oolitic limestone abounding in casts of marine shells, among which a small species of trigonia is conspicuous. The strata that are worked do not exceed six feet in thickness, and consist of rubbly stone, with sand imbedding concretional masses of laminated grit, which, by exposure ...to the frost, admits of easy separation into thin flakes or slabs, that were formerly in general use for paving and roofing ; like the slaty limestones of the Weald of Sussex. 2 The abundance of the remains of terrestrial plants, of rep- tiles, and of land insects, in the Stonesfield strata, associated with the usual marine shells, &c. Of the Oolite, proves the fluvio-marine origin of these deposits : in other words, this assemblage of terrestrial and deep-sea exuviae indicates that these strata were formed in the bed of an ocean, into which the remains of the animals and plants of the neighbouring lands were transported by currents ; while the fresh-water shelly limestones of the Wealden, together with the absence of marine species, equally demonstrate the fluviatile origin of that formation.
What to read after Petrifactions And Their Teachings Or a Hand book to the Gallery of Organic Rem?
You can find similar books in the "Read Also" column, or choose other free books by Gideon Algernon Mantell to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The beds that supply the stone are at a depth of about fifty feet below the summit, and are worked by shafts. The upper twenty-five feet consist of clays alternating with calcareous stone ; the lower, of fine-grained oolitic limestone abounding in casts of marine shells, among which a small species of trigonia is conspicuous. The strata that are worked do not exceed six feet in thickness, and consist of rubbly stone, with sand imbedding concretional masses of laminated grit, which, by exposure ...to the frost, admits of easy separation into thin flakes or slabs, that were formerly in general use for paving and roofing ; like the slaty limestones of the Weald of Sussex. 2 The abundance of the remains of terrestrial plants, of rep- tiles, and of land insects, in the Stonesfield strata, associated with the usual marine shells, &c. Of the Oolite, proves the fluvio-marine origin of these deposits : in other words, this assemblage of terrestrial and deep-sea exuviae indicates that these strata were formed in the bed of an ocean, into which the remains of the animals and plants of the neighbouring lands were transported by currents ; while the fresh-water shelly limestones of the Wealden, together with the absence of marine species, equally demonstrate the fluviatile origin of that formation.
What to read after Petrifactions And Their Teachings Or a Hand book to the Gallery of Organic Rem?
You can find similar books in the "Read Also" column, or choose other free books by Gideon Algernon Mantell to read onlineMoreLess
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