To evaluate these findings, we must remember that before Lyayellya earth changes were due to accidents and explosions were attributed to some hidden forces: thought possible physical and chemical processes which differ from those that occur around us now. This character wore, for example., A theory of coups and Cuvier's system Elie de Beaumont. Thanks to the work Lyayellya, established view of the continuous and gradual development, and now this view is predominant. Therefore, all the modern trend of geology can be called the direction of Goff and Lyayellya, or, in view of the importance of the latter is simple - focus Lyayellya. It must be noted that in some of his conclusions Lyayell gone too far. No one disputes that the earth was originally in a molten state and gradually solidified, and still continues to cool, but the changes on the ground, depending on the intensity of the applied forces, and the monotony, the allowable Lyayellem, in all periods also leads to a false representation. Among the modern geological phenomena is of particular importance of a glacier. Precise observations on them have shown that the so-called glacial epoch, immediately preceding our own, the earth was much colder and much of Europe was bound in ice. This fact, established by scientists Sharpante, Agassiz, Shimperom, Venettsom and others, is to understand the geographic spread of modern animals and plants of great importance. Here we should also note the development of "physical and chemical geology: laboratory studies proved the possibility of prospective in nature, processes, and some of them have been reproduced, even artificially. Outstanding representative of this trend is Gustav Bischof, his work, he explained a number of important phenomena, although not all ultraneptunicheskie his views may be taken.
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