Elements of Geology Prepared for the Use of Schools And Colleges By W S W
Elements of Geology Prepared for the Use of Schools And Colleges By W S W
W S W William Samuel Waithman Ruschenberger
The book Elements of Geology Prepared for the Use of Schools And Colleges By W S W was written by author W S W William Samuel Waithman Ruschenberger Here you can read free online of Elements of Geology Prepared for the Use of Schools And Colleges By W S W book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elements of Geology Prepared for the Use of Schools And Colleges By W S W a good or bad book?
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? All the shells found in those places are not similar to those in the pre- sent seas; but there exists a considerable quantity of them, and moreover, their preservation is so perfect, in many places, that they seem to have been recently buried. If we admit the fact of elevation, for these deposits, can we refuse it to the chalk that everywhere envelopes them, forming not only the Jura, but a great part of the calcareous mountains of France ; or to any shell-deposits, the organic debris of whic...h bear witness to their marine origin ? 9. Subsidence of various deposits. Upheaval has been shown ; subsidence is not less demonstrable. At many points, on the coasts of France and England, may be seen, at low tide, very extensive deposits of plants, similar to those now living in those countries, and which appear to have grown on the spot where they are found, for the roots are seen attached to the soil. These deposits rest on earthy matter, covered with leaves, heaped upon each other, or sunk in a peat-like substance.
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