Original paper

Wortgeschichten aus der Keuperstratigraphie, II: Lettenkohle und Lettenkeuper

[The story of terms used in Keuper stratigraphy, II: Lettenkohle and Lettenkeuper]

Nitsch, Edgar

Zeitschrift der Deutschen Geologischen Gesellschaft Band 155 Heft 2-4 (2005), p. 181 - 185

27 references

published: Jun 1, 2005

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ArtNo. ESP171015502008, Price: 29.00 €

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The term Lettenkohle has been coined by J. C. L. Voigt in 1800 to designate coal with an extraordinarily high content of mud (“Letten”). The term has since been used as a rock name for muddy coals of the Keuper group in Germany, but it recieved an additional stratigraphic meaning in 1834, when Friedrich von Alberti called the lowermost stratigraphic unit of the Keuper the “Lettenkohlengruppe”. In the 19th and early 20th century, variable names were given to this stratigraphic unit (Lettenkohle, Lettenkohlenkeuper, Kohlenkeuper), out of which “Lettenkeuper” arose as an outstanding favorite in German geologic literature.


history of sciencestratigraphyTriassicKeuperLettenkohleLettenkeuperGermany