The Randecker Maar is a maar – a volcanic crater about 1.2 kilometres (0.75 miles) wide. It is in the Swabian Jura mountains, in the municipality Bissingen an der Teck near Stuttgart and was formed around 17 million years ago. A lake formed in the crater and its bed is now a layer of the early Miocene in which many fossils have been found.[1] Nowadays, the crater is drained by the Zipfelbach brook and so there is no longer a lake.
The northeastern wall of the crater has eroded and opens to lower ground. This forms a natural pass for the seasonal migration of birds and insects as they fly up and over the alps. This makes it a good point for observing these creatures and so an observatory was established there in 1969 by ornithologist Wulf Gatter – Forschungsstation Randecker Maar e.V..
The maar and gorge of the Zipfelbach were designated as a nature reserve by local ordinances in 1971 and 1990 to preserve the landscape and its fauna and flora for science and popular enjoyment. The area conserved is now 110 hectares (0.42 square miles).[2]
A view to the NNE showing the pass and the Limburg beyond
References
^James Jepson; David Penney (2014), Fossil Insects, Siri Scientific Press, p. 180, ISBN9780957453067
^Reinhard Wolf; Ulrike Kreh (2007), Die Naturschutzgebiete im Regierungsbezirk Stuttgart, Ostfildern: Thorbecke, pp. 480–482, ISBN978-3-7995-5176-2
Further reading
Wulf Gatter [in German] (2000), Vogelzug und Vogelbestände in Mitteleuropa. 30 Jahre Beobachtung des Tagzugs am Randecker Maar, Wiebelsheim: Aula Verlag, ISBN3-89104-645-6
Günter Schweigert [in German] (1998), Das Randecker Maar – Ein fossiler Kratersee im Albtrauf, Stuttgart: Staatliches Museum für Naturkunde, ISSN 0341-0161
Günter Schweigert [in German]; Günter Bechly [in German] (2001), (PDF), Stuttgarter Beiträge zur Naturkunde, Stuttgart, no. B302, pp. 1–12, archived from the original (PDF) on 16 December 2019
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randecker, maar, maar, volcanic, crater, about, kilometres, miles, wide, swabian, jura, mountains, municipality, bissingen, teck, near, stuttgart, formed, around, million, years, lake, formed, crater, layer, early, miocene, which, many, fossils, have, been, fo. The Randecker Maar is a maar a volcanic crater about 1 2 kilometres 0 75 miles wide It is in the Swabian Jura mountains in the municipality Bissingen an der Teck near Stuttgart and was formed around 17 million years ago A lake formed in the crater and its bed is now a layer of the early Miocene in which many fossils have been found 1 Nowadays the crater is drained by the Zipfelbach brook and so there is no longer a lake Randecker MaarCoordinates 48 34 27 N 9 31 23 E 48 57417 N 9 52306 E 48 57417 9 52306 Coordinates 48 34 27 N 9 31 23 E 48 57417 N 9 52306 E 48 57417 9 52306LocationSwabian JuraRangeAlpsAgeearly MioceneDimensions Width1 2 kilometres 0 75 mi The northeastern wall of the crater has eroded and opens to lower ground This forms a natural pass for the seasonal migration of birds and insects as they fly up and over the alps This makes it a good point for observing these creatures and so an observatory was established there in 1969 by ornithologist Wulf Gatter Forschungsstation Randecker Maar e V The maar and gorge of the Zipfelbach were designated as a nature reserve by local ordinances in 1971 and 1990 to preserve the landscape and its fauna and flora for science and popular enjoyment The area conserved is now 110 hectares 0 42 square miles 2 A view to the NNE showing the pass and the Limburg beyondReferences Edit James Jepson David Penney 2014 Fossil Insects Siri Scientific Press p 180 ISBN 9780957453067 Reinhard Wolf Ulrike Kreh 2007 Die Naturschutzgebiete im Regierungsbezirk Stuttgart Ostfildern Thorbecke pp 480 482 ISBN 978 3 7995 5176 2Further reading EditWulf Gatter in German 2000 Vogelzug und Vogelbestande in Mitteleuropa 30 Jahre Beobachtung des Tagzugs am Randecker Maar Wiebelsheim Aula Verlag ISBN 3 89104 645 6 Gunter Schweigert in German 1998 Das Randecker Maar Ein fossiler Kratersee im Albtrauf Stuttgart Staatliches Museum fur Naturkunde ISSN 0341 0161 Gunter Schweigert in German Gunter Bechly in German 2001 Bibliographie zur Geologie und Palaontologie des Randecker Maars Unter Miozan Sudwestdeutschland 1825 2000 PDF Stuttgarter Beitrage zur Naturkunde Stuttgart no B302 pp 1 12 archived from the original PDF on 16 December 2019 Wikimedia Commons has media related to Randecker Maar This volcanology article is a stub You can help Wikipedia by expanding it vte This article about ornithology is a stub You can help Wikipedia by expanding it vte This Esslingen district location article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Randecker Maar amp oldid 1109756496, wikipedia, wiki, book, books, library,
