The Geology And Extinct Volcanos of Central France
The Geology And Extinct Volcanos of Central France
George Poulett Scrope
The book The Geology And Extinct Volcanos of Central France was written by author George Poulett Scrope Here you can read free online of The Geology And Extinct Volcanos of Central France book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Geology And Extinct Volcanos of Central France a good or bad book?
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Its thickness must have originally been prodigious, and may be judged of by the mountainous portions still remaining, whose outline is to be seen in the accompanying panoramic sketch.* Many of these rise to a height of 400 and 500 feet from their base ; and none, I be- * See Plate XI. Digitized by Goo^t£ 156 VOLCAKTC FOBMATTOSS OP THE VKLAT: Chap. Vm. lieve, show any marks of a division into separate beds ; so that the whole colossal range most be supposed one current, the product of a single e...ruption. It rests generally on granite, either immediately, or with the intervention of basalt and its conglomerates ; but appears also to have covered a large angle of the calcareous freshwater formation which we have already described as occurring in the neighbourhood of Le Pay. As the determination of this fact may be considered an object of some moment, I took some pains in its examination. At the Castle of Lardeyrolle, and on different points near the villages of St Pierre Eynac and MertXBur, the clinkstone certainly rests in part on the freshwater strata.
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