Trossingen Formation
Geologic formation in Germany and Switzerland / From Wikipedia, the free encyclopedia
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The Trossingen Formation, formerly the Knollenmergel, is a geological formation in Germany and Switzerland. It dates back to the late Norian-Rhaetian.[1]
You can help expand this article with text translated from the corresponding article in German. (August 2018) Click [show] for important translation instructions.
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Quick Facts Type, Unit of ...
Trossingen Formation | |
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Stratigraphic range: Norian-Rhaetian ~220–201 Ma | |
Type | Geological formation |
Unit of | Keuper |
Sub-units | Feuerletten, Grenzmergel & Knollenmergel Members |
Underlies | Exter Formation |
Overlies | Löwenstein Formation |
Thickness | Franconia: 55–60 m (180–197 ft) Southern Württemberg: 10 m (33 ft) |
Lithology | |
Primary | Marl, claystone |
Other | Mudstone, sandstone, conglomerate |
Location | |
Coordinates | 48.8°N 9.2°E / 48.8; 9.2 |
Approximate paleocoordinates | 31.9°N 10.4°E / 31.9; 10.4 |
Region | Central Europe |
Country | Germany Switzerland |
Extent | Southern half of Germany |
Type section | |
Named for | Trossingen |
Named by | Beutler |
Year defined | 2005 |
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