His fondness for “hülben und drüben,” a phrase, we believe, derived from Goethe, makes us wonder if he treats the globe as lightly as it was treated in the “Hexenküche.” For him indeed “sie klingt wie Glas sie ist von Ton, es giebt Scherben. His theme is fascinating, and his style is admirably lucid. Wegener's suggestions are far more heroic he will shatter the outermost layer of the crust to bits, and remould it, by successive arrangements of the pieces, nearer to his heart's desire. Spitaler's laborious inquiries as to zonal fluctuations will not content him, though this author believes that he has drawn the Permo-Carboniferous glaciation into his uniformitarian net. Erst seit den 1970er Jahren ist seine Theorie allgemein anerkannt. Wegener called this ancient continent Pangaea. Wegeners Theorie von der Verschiebung der Kontinente blieb zu seinen Lebzeiten immer umstritten und geriet nach seinem Tod rasch in Vergessenheit. About 1910 he began toying with the idea that in the late Paleozoic Era (which ended about 252 million years ago) all the present-day continents had formed a single large mass, or supercontinent, which had subsequently broken apart. He does not look beyond our planet and the atmospheric conditions that now prevail. Dies ist das grundlegende Werk über die Entdeckung der Kontinentaldrift und die Entstehung der Kontinente. Wegener, in laying stress on the differences between equatorial and polar temperatures at the present day, takes up the position of greatest difficulty, and regards a regional refrigeration as necessarily connected with the poles. The evidence of the occurrence of ice-ages becomes more and more cogent as observation spreads, and it is highly probable that they have a common cause. Like them, he overlooks the fact that a century of speculation as to the causes of the glacial epoch of far more recent times has left us with a score of hypotheses amid which we wander unconvinced. Like many scientific workers, he feels that a recognition of the Permo-Carboniferous ice-age compels him to put forward an explanation. As an oceanographer, he looks out over the boundaries of sea and land as a meteorologist, he is interested in changes of climate in the past. Alfred Wegener, professor of meteorology in the University of Hamburg. HOWEVER much conservative instincts may rebel, geologists cannot refuse a hearing to Dr.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |