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| Content Provider | Springer Nature Link |
|---|---|
| Author | Seibold, Eugen Seibold, Ilse |
| Copyright Year | 2003 |
| Abstract | Am Anfang des 19. Jahrhunderts war die Frage noch offen, wie erratische Blöcke an ihren Standort gelangt sind. Auch Leopold von Buch ging dieser Frage nach. Bis zu seinem Lebensende im Jahr 1853 hielt er an der Flut-Theorie von Horace Bénedict de Saussure von 1780 fest, die er auch mehrfach durch quantitative Überlegungen zu stützen versuchte, wie es hier in einem Brief von 1818 gezeigt wird. Obwohl er jahrzehntelang enge Beziehungen zu Jean de Charpentier, dem damaligen Salinendirektor in Bex, auch durch viele Besuche pflegte und dieser den glazialen Rhônegletscher bis auf den Schweizer Jura hinauf nachweisen konnte, war er nicht von einer Gletscherwirkung zu überzeugen. Geländebegehungen mit Louis Agassiz in der Umgebung von Neuchâtel im Jahre 1837 konnten ihn gleichfalls nicht umstimmen. In Norddeutschland hatte dies bei der großen Autorität von Buchs eine lange Nachwirkung, denn erst 1875 wurde der Transport der Findlinge durch das Skandinavische Inlandeis allgemein anerkannt. Auch dieser Brief illustriert den langsamen Weg der jungen Geologie durch viele zunächst irrtümliche Theorien. Doch von Buchs Verdienste auf andern, und wichtigeren Feldern veranlassten Alexander von Humboldt, ihn als den "größten Geognosten unserer Zeit" zu bezeichnen.At the beginning of the 19th century it was still not understood how erratic blocs were transported. Leopold von Buch's answer echoed Horace Bénedict de Saussure's flood theory from 1780. Von Buch's letter of 1818, published here, shows that he tried to support Saussure's theory to which he adhered to throughout his life with quantitative arguments. Even close contacts and several visits to Jean de Charpentier, the then director of the salt mines at Bex, who could demonstrate that the Rhône Glacier had once reached the Swiss Jura, and field trips with Louis Agassiz in the Neuchâtel area in 1837, failed to change von Buch's flood theory. His authority was one of the reasons why the Skandinavian iceshield was not generally thought to have extended into Northern Germany until 1875, when Otto Martin Torell located surfaces polished by ice near Berlin—an observation that provoked a sudden surge of affirmative publications. Erratic blocks were not the only topic on which von Buch was mistaken, but because of his many important contributions in other areas, including his shift from neptunism to plutonism or his observations concerning the uplift of Scandinavia, Alexander von Humboldt characterized him as "the greatest geognosist of our time". |
| Starting Page | 426 |
| Ending Page | 439 |
| Page Count | 14 |
| File Format | |
| ISSN | 14373254 |
| Journal | International Journal of Earth Sciences |
| Volume Number | 92 |
| Issue Number | 3 |
| e-ISSN | 14373262 |
| Language | German |
| Publisher | Springer-Verlag |
| Publisher Date | 2003-05-24 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences |
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