File:Degerfeld-Karstwanne Bruchtektonik Schwaebische-Alb.jpg
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Deutsch: „Karstwanne Degerfeld“ SW von Bitz, Schwäbische Alb, im Gewann „Wanne Räuhe“, das von 900 auf 865 m sinkt. Wenn Karstsenken klein sind, nennt man sie Dolinen, große Karstsenken sind eine eigenständige Form, die man „Karstwanne“ nennt. In deutscher Literatur sind Karstwannen für die Alb, die Fränkische Alb und die Causses (Südfrankreich) nachgewiesen. Nach Bayer & Groschopf (1989) gibt es allein auf der Alb 57 Karstwannen, von denen etwa die Hälfte sogar eine Länge von min. 1000-4500 m haben (wie auf dem Foto). Die Entwicklung der Karstwanne Degerfeld begann wahrscheinlich im späten Pleistozän (vor knapp 1 Million Jahren). Sie liegt im Einflussgebiet der Bruchtektonik des benachbarten Zollern-Grabens, der gleichwohl viel älter ist. In der Geologie ist der internationale Begriff „Uvala“ für Karstwanne gebräuchlich. English: karstdepression (German: „Karstwanne“) „Degerfeld, Wanne Räue“ (900 – 865 m) near Bitz, Swabian Alb. If depressions are small their German term is “Doline”, if they are large, they are called “Karstwanne”. According to the German geologists Bayer & Groschopf (1989) there are 57 depressions on the Alb plateau, half of which have a length of 1000-4500 m, most of them of irregular oval shape. The formation of the depression Degerfeld, as well as that of most depressions on the Alb began in late Pleistocene times. This depression may well have been influenced by the manifold fracture tectonics caused by the “Zollern-Graben”, which is very close by, although the graben is millions of years older. The international geological term comparable to “Karstwanne” is “Uvala”. |
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| Author | Ustill |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 16:37, 1 March 2017 | | 1,800 × 1,200 (2.22 MB) | Ustill (talk | contribs) | User created page with UploadWizard |
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