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Ulmener Maar

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Lake in Ulmen, Germany
Ulmener Maar
View looking north from the castle ruins of the upper ward
Ulmener Maar is located in GermanyUlmener MaarUlmener Maar
Coordinates50°12′36″N 6°58′59″E / 50.21000°N 6.98306°E / 50.21000; 6.98306
Primary inflowsRömerstollen
   (from Jungferweiher),
Ulmener Bach
   (manmade, since 1875)
Primary outflowsno egress
Max. length0.51 km (0.32 mi)
Max. width0.25 km (0.16 mi)
Max. depth37 m (121 ft)
Shore length0.9 km (0.56 mi)
Surface elevation440 m (1,440 ft)
SettlementsUlmen
Shore length is not a well-defined measure.

The Ulmener Maar is a maar in the Eifel mountains of Germany in the immediate vicinity of the town of Ulmen in the state of Rhineland-Palatinate. The lake is up to 37 metres deep and is surrounded by an embankment of tuff with an average height of 20 metres, which was formed from the erupted material of the former volcano. By the southern edge of the embankment are the ruins of a knight's castle, Ulmen Castle dating to the 11th century.

Ulmener Maar, 2015 aerial photograph
Ulmen, Jungferweiher, 2015 aerial photograph

IUGS geological heritage site

In respect of it being the 'youngest volcano in central Europe, situated in Vulkaneifel, the volcanic region where the model of formation of maars by phreatomagmatic eruptions was established', the International Union of Geological Sciences (IUGS) included 'The Holocene Ulmen Maar' in its assemblage of 100 'geological heritage sites' around the world in a listing published in October 2022. The organisation defines an IUGS Geological Heritage Site as 'a key place with geological elements and/or processes of international scientific relevance, used as a reference, and/or with a substantial contribution to the development of geological sciences through history.'

See also

Literature

  • Werner D’hein: Natur- und Kulturführer Vulkanlandeifel. Mit 26 Stationen der „Deutschen Vulkanstraße“. Gaasterland-Verlag, Düsseldorf, 2006, ISBN 3-935873-15-8.

References and footnotes

  1. "The First 100 IUGS Geological Heritage Sites" (PDF). IUGS International Commission on Geoheritage. IUGS. Retrieved 13 November 2022.

External links

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