The Eichsfeld-Altmark threshold is a NNE-SSW sweeping paleogeographic upheaval structure in the western section of the Thuringian-Saxon Great Plain.
The threshold was created over 250 million years ago and had a width of between 10 and 20 kilometers and passed the surrounding terrain by several hundred meters. It runs from the Altmark over the Harz, the Eichsfeld into the western Thuringia and separates the Central European basin into an eastern part (Thüringisch-Westbrandenburgische Senke) part and a western (Niedersächsisch-Hessische sink) part. It is divided into several parts by NW-SE sweeping transverse elements. The region south of the Harz between Bad Lauterberg and Bad Sachsa occupies a special section in the area of the Eichsfeld threshold, where remains of these geological structures (reef formations) can still be seen as rock formations. Single-level Edit source text Weblinks Edit sourcetext
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