File:Schwaebischer-Vulkan Scharnhausen-Stuttgart Albvorland.jpg

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Deutsch: Sehr kleiner Scharnhauser Vulkan („Schwäbischer Vulkan“), Alb-Vorland, 9km süd-östlich von Stuttgart. Zustand um 1995.

Es ist der nördlichst gelegene Vulkanschlot des „Urach-Kirchheimer Vulkangebiets“ (355 Schlote, nur aktiv im Miozän). Er gehört zum Typ der Phreatomagmatischen Eruption.

Ein kleiner Aufschluss von 1935 im anstehenden Knollenmergel (Keuper) brachte neben der Förderbrekzie, zumeist Lapilli, auch Fremdgestein zutage: Neben dem anstehenden Gestein auch solches aller drei Jurastufen, darunter sogar Weißjura (Malm beta). D.h., dass zur Eruptionszeit im Miozän das Albplateau bis hierher gereicht haben muss, entweder als geschlossene Albtafel oder zumindest als vorgeschobene Berghalbinsel.

English: Very small volcano in Scharnhausen (9km southeast of Stuttgart), the northern of the “Urach-Kirchheimer-Vulkangebiet” (355 diatremes, active only in Miocene), Middle Swabian Alb.
Digging a small geological outcrop resulted in pyroclasts, mainly lapilli with foreign inclusions. The diatreme is geologically very important, because all three (!) lithostratigraphic units of the South German Jurassic were found amongst the pyroclasts. Finding White Jurassic means: in Miocene the Alb plateau either extended to Scharnhausen, or, there was a partial extension to the plateau.
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Author Felix
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(Reusing this file)		 explicit permission by Email, 2nd September 2015

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