Editing Thuringian Forest (section)

=== Eisenach trough ===

[[File:Lower Permian fanglomerate.jpg|thumb|left|Permian conglomerate of the Eisenach formation from an alluvial fan below Wartburg castle]]
The Eisenach trough is part of the much larger Werra basin, which in turn is part of the Saar-Unstrut depression of [[Cisuralian|early Permian]] origin. It was uplifted as one of the fault blocks in the Saxonian tectonic era<ref name="VoigtTIF">{{cite book | author = Sebastian Voigt | title = Die Tetrapodenichnofauna des kontinentalen Oberkarbon und Perm im Thüringer Wald - Ichnotaxonomie, Paläoökologie und Biostratigraphie | location = Göttingen | year = 2005 | pages = 308 | isbn=3-86537-432-8}}</ref> and is filled with Variscan [[molasse]]s, named ''Eisenach formation'' after the location. It consists mostly of monotonous sequences of reddish [[Conglomerate (geology)|conglomerates]] representing a proximal [[alluvial fan]] which originated in debris flows from the Ruhla anticline. Dated in the upper Rotliegend, the Eisenach formation consists of some of the youngest geological units in the Thuringian forest. The lack of volcanic rocks suggests that at the time of the deposition of the Eisenach formation, no significant tectonic processes took place in the Werra basin which was by then a mostly consolidated depositional environment.<ref name="VoigtTIF"/>