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BDG - Berufsverband Deutscher Geowissenschaftler e.V. Mittelstraße 2-10 53175 Bonn, Germany http://www.geoberuf.de
Contact Ms Tamara Fahry-Seelig +49 33209 21246

Tuff ist das Gestein des Jahres 2011

(PresseBox) (Bonn, )
Tuffe sind ganz besondere Gesteine, denn sie sind das Ergebnis sowohl von magmatischen als auch sedimentären Prozessen. Sie entstehen, wenn flüssiges Magma unter hohem Druck aus einem Vulkan in die Atmosphäre geschleudert wird. Dabei wird der Verband des flüssigen Magmas zerstört und es entstehen Myriaden von meist staubfeinen bis faustgroßen Partikeln. Wenn sie auf die Erde fallen, dann nennen wir dieses Sediment "Tuff". In vulkanisch aktiven Gebieten der Erde ist die Tuffbildung auch heute direkt zu beobachten.

Die Aschewolken des isländischen Vulkans Eyjafjallajokull, die im April 2010 den Flugverkehr über Europa teilweise zum Erliegen brachten, waren solch ein zerstobenes
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