File:Erosion at rheinfall3.jpg
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Nederlands: De Rheinfall, de grootste waterval in Europa, werd gevormd tijdens de laatste ijstijd, tussen de 14000 en 17000 jaar geleden, door erosiebestendige rotsen die de rivierbedding versmalden. De eerste voortschrijdende gletsjers vormden het huidige landschap nagenoeg 500000 jaar geleden.
De Rheinfallsfelsen is een een overblijfsel van de oorspronkelijke kalksteenklip. De rots is slechts weinig geërodeerd vanwege de geringe sedimentmassa die uit de Bodensee wordt meegevoerd.
English: The Rheinfall (Rhine Falls) were formed in the last ice age, approximately 14,000 to 17,000 years ago, by erosion- resistant rocks narrowing the riverbed. The first glacial advances created today's landforms approximately 500,000 years ago.
The Rheinfallfelsen, a large rock, is the remnant of the original limestone cliff flanking the former channel. The rock has eroded very little over the years because not too much sediment comes down the Rhine from Lake Constance.
Deutsch: Der Felsuntergrund, der viel älter ist als der Rheinfall selbst, wie auch die bedeutend jüngeren geologischen Vorgänge während des gegenwärtigen Eiszeitalters führten zur Entstehung des Rheinfalls. Durch die allgemeinen Temperatursenkungen setzten vor rund 500'000 Jahren die ersten Gletschervorstöße ins Mittelland ein und gestalteten die heutige Landschaft.
Die Rheinfallfelsen (Grosser, besteigbarer Felsen und Seelentanzstein) bilden die Überreste der ursprünglich steil abfallenden Kalksteinflanke der einstigen Abflussrinne. Die sehr geringe bisherige erosive Überformung der Fallstrecke erklärt sich durch die geringe Schleppfracht (Flussgeschiebe) des Rheins unterhalb des Bodensees. |
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| Author | Ad Meskens | |||
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| current | 11:26, 14 April 2009 | | 3,648 × 2,736 (6.19 MB) | Ad Meskens (talk | contribs) | {{Information |Description={{en|1=a }} |Source=Own work by uploader |Author=Ad Meskens |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> Category:Rheinfall |
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