File:Weltenburger Enge 01.jpg

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Deutsch: Das ursprüngliche Tal der Donau (Ur-Donau oberhalb Kelheim) war fünf Millionen Jahre lang das heutige Altmühltal, das mit dem heutigen Donauverlauf über das Wellheimer Trockental verbunden ist. Bei Kelheim mündete damals ein aus Richtung Ingolstadt kommender Nebenfluss ("Ingolstädter Albsaumfluss"). Dieser hatte sich durch ständige Eintiefung des Flusses in Richtung Quelle ("rückschreitende Erosion") langsam durch den harten Riegel der Malmkalke gegraben, und so die Schlucht der Weltenburger Enge geschaffen.

Bereits 1840 erhob sie König Ludwig I. zum ersten Naturschutzgebiet Bayerns.

Quelle: Bayerisches Landesamt für Umwelt
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Geotop-Nr. 273R005 Nähe Kloster Weltenburg

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current15:44, 16 May 2015Thumbnail for version as of 15:44, 16 May 20154,332 × 2,896 (5.99 MB)Apollo481 (talk | contribs)User created page with UploadWizard

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